Grafton County, New Hampshire

Licensed Septic Companies in Grafton County, NH

160 septic companies serve Grafton County, New Hampshire, and 160 of them hold a New Hampshire septic license or certification matched to the New Hampshire Department of Environmental Services, Subsurface Systems Bureau list (data as of October 2026).

Septic services in Grafton County

Guides: Septic system installation · Installation cost · Pumping cost

160 septic companies in Grafton County

Bristol 20

  • Andrew T Bauer

    127 Mcmurphy Rd Alexandria, Bristol, NH 03222

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05887 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 303-6628

  • Daniel C Milligan

    286 Bailey Rd Alexandria, Bristol, NH 03222

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05863 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 832-1764

  • Jacob J Goodrum

    490 Washburn Road Alexandria, Bristol, NH 03222

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05787 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 998-4890

  • Joseph W Morrison Jr

    30 Bristol Hill Rd, Bristol, NH 03222

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05807 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 064-2290

  • Ken A Braley

    130, Bristol, NH 03222

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #01739 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 744-8465

  • Morrison Construction LLC

    30 Bristol Hill Rd., Bristol, NH 03222

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #01119 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04873 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    From their website: Installation · Perc testing

    (603) 744-2290 morrisonconstruction-llc.com

  • Peter A Fischer

    463, Bristol, NH 03222

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05261 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 744-6614

  • Steven Hering

    Bristol, NH 03222

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #04112 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    (603) 744-5765

  • Danny Woodhams

    1086 S Main St, Bristol, NH 03222

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05358 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Doug Barton

    1615, Bristol, NH 03222

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04376 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Edward Phelps

    19, Bristol, NH 03222

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05061 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Glen Copatch

    90, Bristol, NH 03222

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #02310 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    No phone on the state list

  • James R Ward Jr

    Po Box 686, Bristol, NH 03222

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #02704 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Matt Bourque

    164 Barron Rd, Bristol, NH 03222

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04624 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Michael K Ethier

    Po Box 152, Bristol, NH 03222

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #01576 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Paul Kahler

    530, Bristol, NH 03222

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04333 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Richard J Danahy

    150 Deangelo Dr, Bristol, NH 03222

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #01643 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    No phone on the state list

  • Robert J Prendergast

    46 B Ernest Drive, Bristol, NH 03222

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03664 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Ronald Olszak

    Po Box 732 717 Mayhew Turnpike, Bristol, NH 03222

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #00112 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    No phone on the state list

  • Vernal Adams

    89 Dinardi Road, Bristol, NH 03222

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #01831 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

Campton 17

  • Alicia L Williams

    808 Nh Rte 175, Campton, NH 03223

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05746 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 554-6144

  • Decosta Construction LLC

    1411 Nh Route 175, Campton, NH 03223

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #02504 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    From their website: Installation

    (603) 726-7200 decostabuilders.com

  • Edward Pope Sr.

    Po Box 188, Campton, NH 03223

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05752 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 960-2121

  • John J Tansey

    24 Red Stone Road, Campton, NH 03223

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05803 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (774) 722-2290

  • John Landry

    Po Box 720, Campton, NH 03223

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05389 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 726-7623

  • L E Johnston Construction Inc

    54 Turkey Jim Rd, Campton, NH 03223

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04799 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 726-7011

  • Peter D Chapman

    Po Box 1311, Campton, NH 03223

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05768 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (978) 569-3037

  • William P Manson

    1023 Us Rte 3, Campton, NH 03223

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05779 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 481-0985

  • Zac J Mccormack

    Po Box 849, Campton, NH 03223

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05874 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 738-9565

  • Bruce Mcdonald

    Po Box 1111, Campton, NH 03223

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04742 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Bruce Rodgers

    Po Box 89, Campton, NH 03223

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #04216 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    No phone on the state list

  • Corey C Smith

    1992 Us Route 3, Campton, NH 03223

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05661 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Francis Crane

    Po Box 720, Campton, NH 03223

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #00025 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Jason Hughes

    318 Eastern Corner Rd, Campton, NH 03223

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05707 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Jim Sanborn

    Po Box 602, Campton, NH 03223

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #02242 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Kevin Coursey

    1486 Us Route 3 Unit C, Campton, NH 03223

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05381 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Leigh E Johnston

    54 Turkey Jim Rd, Campton, NH 03223

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #00264 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

Littleton 14

  • Champagne Solutions

    1599 Mount Eustis Rd, Littleton, NH 03561

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05575 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    From their website: Installation

    (603) 728-5944 solutionsnh.com

  • Clinton Clough Construction

    500 N. Littleton Rd, Littleton, NH 03561

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05189 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 444-2025

  • Daniel Brodien

    708 Mount Eustis Rd, Littleton, NH 03561

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05549 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 444-5961

  • Dodge Contracting Inc

    1063 Mount Eustis Rd, Littleton, NH 03561

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05485 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 444-2633

  • James Mcmahon III

    237 Riverside Drive, Littleton, NH 03561

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #05356 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    (603) 444-2933

  • Jay R Belyea

    528 Hilltop Rd, Littleton, NH 03561

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05754 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 991-3364

  • Mark A Maccini

    16 Cold Springs Road, Littleton, NH 03561

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05904 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 991-8739

  • Michael Carbonneau

    528 Hilltop Road, Littleton, NH 03561

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #04403 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    (603) 616-8895

  • Glenn A Lavoie

    2502 N Littleton Rd, Littleton, NH 03561

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #02467 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    No phone on the state list

  • Jeffrey L Winn

    Po Box 42, Littleton, NH 03561

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03605 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Jennifer Carbonneau

    5285 Hilltop Road, Littleton, NH 03561

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05738 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Joseph Depalma

    1091 Meadow St, Littleton, NH 03561

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03996 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Justin Marvin

    164 Beacon Street, Littleton, NH 03561

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #04673 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    No phone on the state list

  • Shea Kelley

    Po Box 681, Littleton, NH 03561

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05604 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

Canaan 9

  • Brent Stevens

    18, Canaan, NH 03741

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #00117 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    (603) 523-9923

  • Jason L Johnston

    26 Englehardt Ln, Canaan, NH 03741

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05761 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 667-1801

  • Matthew J Colburn

    394 West Farms Rd, Canaan, NH 03741

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05770 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 306-1745

  • Philip P Salvail

    51 Grist Mill Hill Rd, Canaan, NH 03741

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05298 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 304-5511

  • Shaun Houston

    14 Mallard Dr, Canaan, NH 03741

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05878 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 219-5318

  • Zani Construction

    27 Apple Blossom Ln Zani Construction, Canaan, NH 03741

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #04323 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    (603) 523-7094

  • Christian Henault

    210 River Rd, Canaan, NH 03741

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05713 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Matthew C Cacciatore

    Po Box 100, Canaan, NH 03741

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05756 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • William Wanner

    Canaan, NH 03741

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03328 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

Ashland 8

  • Brandon Hiltz

    Po Box 43, Ashland, NH 03217

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03907 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 968-2113

  • Don R Latulippe Excavating LLC

    Po Box 1205, Ashland, NH 03217

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #02197 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 536-5200

  • Hess Engineering and Construction Consultants

    P.O. Box 991, Ashland, NH 03217

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05760 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 968-5664 hessengineeringllc.com

  • Jeremy J Hiltz

    Po Box 1142, Ashland, NH 03217

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03006 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 968-9694

  • Michael Latulippe

    Po Box 729, Ashland, NH 03217

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #00575 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 968-7332

  • Steven A Guyotte

    Po Box 134, Ashland, NH 03217

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05775 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 968-2181

  • Todd Randlett Trucking and Septic Solutions

    384 Main Street, Ashland, NH 03217

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05749 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 968-7459 randletttruckingandsepticsolutions.com

  • Jason Hiltz

    Po Box 421, Ashland, NH 03217

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03773 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

Thornton 8

  • Coleman Cawley

    30 Upper Mad River Road, Thornton, NH 03285

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05891 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 960-9102

  • Duane Johnston

    73 Laundromat Rd, Thornton, NH 03285

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #02580 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #02581 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05692 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
    • +1 more credential

    Per state license: Installation · Perc testing

    (603) 726-3166

  • Neil R Noseworthy

    9 Steele Bridge Road, Thornton, NH 03285

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05733 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 960-4813

  • Deven Mciver

    2959 Us Route 3, Thornton, NH 03285

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04051 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • John S Kubik

    822 Nh Route 49, Thornton, NH 03285

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #05459 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    No phone on the state list

  • Larry Benoit

    32 Fisher Mtn Rd, Thornton, NH 03285

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04757 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Mark E Johnston

    120 Mad River Rd, Thornton, NH 03285

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04296 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Ronald Farnsworth

    3051 Us Route 3, Thornton, NH 03285

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #02562 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

North Haverhill 7

  • Joseph L Webster

    48 Newton Rd Plaistow, North Haverhill, NH 03774

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05873 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (857) 829-1107

  • Rich Clifford Concrete & Excvt

    54 Clifford Dr, North Haverhill, NH 03774

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #02733 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 787-2573

  • Craig E Schulz

    900, North Haverhill, NH 03774

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03985 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Edwin M Paige

    1140 Dartmouth College Highway, North Haverhill, NH 03774

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05295 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Joe Fiore

    Po Box 26, North Haverhill, NH 03774

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04129 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • John Flynn

    5, North Haverhill, NH 03774

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #04204 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    No phone on the state list

  • Shane Fiore

    Po Box 26, North Haverhill, NH 03774

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05588 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

Plymouth 7

  • Dana White

    Po Box 74, Plymouth, NH 03264

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03926 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 536-4673

  • Edward Keniston

    Po Box 239, Plymouth, NH 03264

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03925 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 481-0583

  • Neil F Mciver

    19 Loon Lake Road, Plymouth, NH 03264

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #02777 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    (603) 217-7120

  • Richard Gowen

    Po Box 487, Plymouth, NH 03264

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #01647 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    (603) 236-6205

  • Brent Harlow

    217 Bell Rd, Plymouth, NH 03264

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05399 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • James Degrace

    Po Box 332, Plymouth, NH 03264

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03129 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Lawrence E Gilpatric

    3451 River Rd 3451 River Rd, Plymouth, NH 03264

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03581 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

Enfield 6

  • Darcie D Crate

    27 Georgia Ave, Enfield, NH 03748

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05890 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 252-4908

  • Duane J Crate

    27 Georgia Ave, Enfield, NH 03748

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05860 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • John Downing

    70 Oak Hill Rd, Enfield, NH 03748

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #04192 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    No phone on the state list

  • Steven Patten

    40 Livingstone Lodge Rd Po Box 226, Enfield, NH 03748

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #00656 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Thomas Hersey

    Po Box 664, Enfield, NH 03748

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05101 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Timothy L Howlett

    424 George Hill Rd, Enfield, NH 03748

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03584 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

Grafton 6

  • David I Hunter

    351 Mcdow Ln, Grafton, NH 03240

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05866 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 716-0881

  • J. Keyser Trucking & Excavation

    22 Jalbert Ln, Grafton, NH 03240

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04135 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 306-7513

  • Robert Senter Jr

    6 Bullocks Crossing Rd, Grafton, NH 03240

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #02615 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 523-9680

  • Dennis Breidel

    118 Kilton Pond Rd, Grafton, NH 03240

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04421 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Jessica A Pearson

    Grafton, NH 03240

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05872 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Joseph L Sanville

    165 Kilton Pond Rd, Grafton, NH 03240

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04012 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

Holderness 6

  • David Bourne

    233 Us Route 3, Holderness, NH 03245

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05089 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 279-0900

  • Morello Construction Inc.

    Po Box 534, Holderness, NH 03245

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04467 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 375-4100 mcbuildnh.com

  • Jamison D Brandin

    Po Box 471, Holderness, NH 03245

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05762 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Jeremiah Sargent

    Po Box 643, Holderness, NH 03245

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05569 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Randall Eastman

    Po Box 58, Holderness, NH 03245

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04589 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Stanley Graton

    Po Box 183, Holderness, NH 03245

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #02747 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

Franconia 5

  • Dean K Doormann

    Po Box 153, Franconia, NH 03580

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05848 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 575-1446

  • Thaddeus Presby

    244 Main St, Franconia, NH 03580

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #03156 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    (603) 823-5298

  • John Seely

    Po Box 422, Franconia, NH 03580

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #04322 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    No phone on the state list

  • Paul W Pinkham

    709 Easton Rd, Franconia, NH 03580

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04105 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Travis Horan

    96, Franconia, NH 03580

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05626 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

Lebanon 5

  • Raymond Lowery

    10 Slayton Hill Rd Ste 102, Lebanon, NH 03766

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03617 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 448-1888

  • Ryan J Morse

    100 Alden Rd, Lebanon, NH 03766

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05229 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 359-1956

  • Bernie Huckins

    Po Box 476, Lebanon, NH 03766

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04477 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Kenneth Louzier

    Po Box 255, Lebanon, NH 03766

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #02676 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Terry Melendy Sr

    198 Slayton Hill Rd, Lebanon, NH 03766

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04883 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

Monroe 4

  • C & C Bunnell Excavating LLC

    233 Mountain View Dr, Monroe, NH 03771

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04054 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 638-2400

  • Chris J Cass

    1882 Coppermine Road, Monroe, NH 03771

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05508 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 455-7567

  • Gary Ward

    3814 Littleton Road, Monroe, NH 03771

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #02036 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Jeffrey Davis

    79 Hammond Rd, Monroe, NH 03771

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05208 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

Orford 4

  • Stacey Thomson

    53 Nh Route 10, Orford, NH 03777

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04953 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 353-9700

  • Brandon Dyke

    3043 Gov Meldrim Thomson Scenic Highway, Orford, NH 03777

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04986 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Clifton Taylor

    41 Sunday Mountain Ext Rd, Orford, NH 03777

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04510 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Theodore J Boutin

    Po Box 325, Orford, NH 03777

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #02922 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

Rumney 4

  • Kyle T Sawyer

    189 River Rd Groton, Rumney, NH 03266

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05871 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 895-0111

  • David J Leone

    Po Box 235, Rumney, NH 03266

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03376 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Greg Sanborn

    145 Old North Gorton Road, Rumney, NH 03266

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05029 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Kevin L French

    581 School St, Rumney, NH 03266

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #04262 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    No phone on the state list

Warren 4

  • Jason Newton

    256 Swain Hill Rd, Warren, NH 03279

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #03671 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    (603) 989-3313

  • Lloyd Bixby

    472 Lake Tarleton Rd, Warren, NH 03279

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #02099 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 764-5892

  • Daniel J Clark

    383 Beech Hill Road, Warren, NH 03279

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05496 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Wayne D Stark

    42 Pine Hill Rd, Warren, NH 03279

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05364 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

Wentworth 4

  • Adam J Patten

    124 Eastside Road, Wentworth, NH 03282

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05916 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 728-5591

  • Jared King

    Po Box 281, Wentworth, NH 03282

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05708 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 764-5251

  • John W Vlk

    67 Mount Moosilauke Hwy, Wentworth, NH 03282

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05637 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Nathaniel Myles

    379 North Dorchester Rd, Wentworth, NH 03282

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04666 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

Woodsville 4

  • Joe Boutin

    78, Woodsville, NH 03785

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03930 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 443-7279

  • Daniel Elliott

    174, Woodsville, NH 03785

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #02873 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Jack L Brill

    22 Brill Hill Rd, Woodsville, NH 03785

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #00394 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    No phone on the state list

  • Steve Robbins

    Po Box 22, Woodsville, NH 03785

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05282 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

Hebron 3

  • Benjamin Hall

    114 Pike Hill Rd, Hebron, NH 03241

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04252 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 744-6350

  • Matthew Barnard

    34 Pine Top Rd, Hebron, NH 03241

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #04832 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    (603) 744-2696

  • Casey P Kuplin

    Po Box 59, Hebron, NH 03241

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04253 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

Lisbon 3

  • Kevin Schofield

    1121 Route 302, Lisbon, NH 03585

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03260 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 838-6028

  • Larry S Towle

    306, Lisbon, NH 03585

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05735 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 616-5620

  • Scott Morse

    3157 Route 302, Lisbon, NH 03585

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05567 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 259-6762

North Woodstock 2

  • Anthony W Cincotta

    Po Box 398, North Woodstock, NH 03262

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05818 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (781) 248-3414

  • Caulder Construction

    15, North Woodstock, NH 03262

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04547 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    From their website: Installation

    (603) 745-6644 caulderconstruction.com

Pike 2

  • Edward Cadreact

    1353 Mount Moosilauke Hwy, Pike, NH 03780

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #02635 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 989-3371

  • Keith C Hatch

    153 Dicinson Rd, Pike, NH 03780

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05821 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 991-3122

Bethlehem 1

  • Daniel Webb

    183 Oak Ridge Rd, Bethlehem, NH 03574

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #03063 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    No phone on the state list

Haverhill 1

  • Ty M Hannett

    P.O. Box 142, Haverhill, NH 03765

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05815 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

Jerusalem Rd Canaan 1

  • Richard Remacle

    531, Jerusalem Rd Canaan, NH 03741

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #02482 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 523-7512

Lincoln 1

  • Taylor Beaudin

    Po Box 939, Lincoln, NH 03251

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05110 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

Piermont 1

  • Kevin Fagnant

    45 Knapp Rd, Piermont, NH 03779

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #02072 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

Sugar Hill 1

  • John E Peckett

    138 Pecketts Cross Rd, Sugar Hill, NH 03586

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03413 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 616-4370

West Lebanon 1

  • Peter D Edson

    7 Orcutt Ave, West Lebanon, NH 03784

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04851 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 298-8294

Woodstock 1

  • Robert M Hiltz Jr

    Po Box 127, Woodstock, NH 03293

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #02937 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

Septic licensing in New Hampshire

New Hampshire requires a NHDES permit to design or install a septic system; the Subsurface Systems Bureau publishes the list of permitted designers and installers. The NH Department of Environmental Services, Subsurface Systems Bureau issues these credentials: Permitted installer (RSA 485-A:36); Permitted designer.

Permits for new systems, replacements and most repairs are issued locally. Ask the contractor which office handles Grafton County and whether the permit fee is in their quote.

New Hampshire septic licensing: agencies, license types and how to check a license →

Septic companies in Grafton County: common questions

How many licensed septic companies are in Grafton County, NH?

160 septic companies serve Grafton County, New Hampshire, and 160 of them hold a New Hampshire septic license or certification matched to the New Hampshire Department of Environmental Services, Subsurface Systems Bureau list (data as of October 2026). Each license badge on this page names the agency and links to its lookup so you can confirm it.

Who licenses septic contractors in New Hampshire?

New Hampshire requires a NHDES permit to design or install a septic system; the Subsurface Systems Bureau publishes the list of permitted designers and installers. The licensing body is the NH Department of Environmental Services, Subsurface Systems Bureau.

Which companies install septic systems in Grafton County?

160 listings in Grafton County install septic systems. New systems and replacements need a permit, so ask each installer to handle the permit and to show their New Hampshire license.

How do I check a septic contractor's license in New Hampshire?

Use the NH Department of Environmental Services, Subsurface Systems Bureau's lookup (https://www.des.nh.gov/land/septic-systems/septic-designer-or-installer) and search the contractor's name or license number. Our guide to checking a septic license walks through it.