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New Hampshire

Licensed Septic Companies in New Hampshire

The Septic Guide lists 1,541 septic companies and licensed septic professionals in New Hampshire; 1,541 are matched to the New Hampshire Department of Environmental Services, Subsurface Systems Bureau license or certification lists (data as of October 2026).

1,541listed in New Hampshire
1,541matched to a state license or certification
710with a phone number
15county and town pages

Septic companies by county

Septic companies by city

Septic services in New Hampshire

Counts of New Hampshire listings by service, from each business's own website or the type of state license it holds.

  • 2 septic tank pumping · guide
  • 1,541 septic system installation · guide
  • 2 septic inspection · guide
  • 5 septic repair · guide
  • 3 drain field repair · guide
  • 1 risers and lids
  • 214 perc testing and site evaluation

Who licenses septic work 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.

Credentials: Permitted installer (RSA 485-A:36); Permitted designer.

Agency: NH Department of Environmental Services, Subsurface Systems Bureau.

Licenses shown in this directory come from: New Hampshire Department of Environmental Services, Subsurface Systems Bureau (1,572).

New Hampshire septic licensing guide →

Other New Hampshire listings

Septic companies and licensed professionals in areas without their own page yet. Listings in the counties and towns above are on those pages.

Little Compton 1

  • Justin E Cooper

    176 Places Mill Rd Gilmanton Iw, Little Compton, NH 02837

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05739 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 520-7871

Location not listed 123

  • Aaron T Dionne

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05893 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (207) 351-5087

  • Archie Clark III

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03929 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05130 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (802) 257-1963

  • Arthur F Siciliano

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #03909 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    (603) 491-0711

  • Brian Harvey

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05598 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 234-3627

  • Buck J Adams

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05123 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (802) 463-2213

  • Casey L Leithead

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05785 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (802) 274-1776

  • Christopher D Bell

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05723 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (802) 258-1478

  • Christopher D Boothby

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05835 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 781-6692

  • Christopher G Daigle

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05327 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (978) 688-1181

  • Christopher R Bentley

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03966 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 848-6625

  • Craig E Babbidge

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05491 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (207) 824-2258

  • Dana L Kiklis

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05841 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (781) 325-5312

  • Daniel A Gurney

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03646 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (802) 226-2210

  • Daniel N Winn

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05829 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (207) 651-6958

  • Daniel R Mcintyre

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05859 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (802) 558-2826

  • Daniel W Eddy

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05773 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (207) 408-4195

  • David Smith

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03794 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (978) 486-4686

  • Donald A Kohl III

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05822 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (978) 479-4540

  • Donald E Matthews

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04906 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (413) 522-5388

  • Dwight R Jarvis

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04391 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (802) 674-5421

  • Edward L Tully

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04424 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (802) 676-3276

  • Eric Chase

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05674 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (802) 763-2900

  • Eric J Murphy

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05812 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (802) 356-7033

  • Gregory G Blanchard

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03650 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (802) 674-2047

  • Jamie D Baker

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05833 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (978) 505-2987

  • Jason C Guy

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05789 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (781) 760-3076

  • Jason Fornwalt

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03813 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (802) 291-3112

  • Jason Leclerc

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04727 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 831-6554

  • Jason R White

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05849 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (978) 474-5020

  • Jesse T Warren

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04342 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (978) 948-7418

  • John L Divincenzo

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #02959 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (978) 372-7471

  • John N Lapierre

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03064 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 765-6096

  • Joseph M Flak III

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05118 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (978) 852-2002

  • Joseph R Surianello

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05845 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (978) 835-9777

  • Keegan A C Jones

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05763 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (207) 461-1269

  • Larry C Godfrey

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03295 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (802) 333-4195

  • Logan D Raymond

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05823 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (802) 299-7467

  • Lucas J Bouchard

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05781 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (207) 337-4872

  • Matthew Brunet

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05726 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (978) 815-4234

  • Matthew Potter

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #02857 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (802) 295-7764

  • Michael J Donahue Jr

    Po Box 355 North Woodstock, NH 03562

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05730 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 348-5145

  • Nathaniel K Brown III

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05725 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (781) 999-2908

  • Nicholas C Mackinnon

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05623 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 692-7667

  • Nick Curtis

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05479 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (207) 957-4118

  • Paul G Muse

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05599 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (207) 806-9091

  • Ray N Gomez

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05447 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (207) 806-7114

  • Raymond Nott II

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03571 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (802) 295-2734

  • Robert Drew

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05419 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (207) 925-1480

  • Ronald Marsan

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03530 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (978) 815-6935

  • Scott Sweet

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03332 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (802) 674-8134

  • Sean S Tocci

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05210 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (978) 597-8680

  • Steven Clement

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05192 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (603) 817-0187

  • Stewart V Mccormack

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05722 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (978) 377-5044

  • Todd Zagarella

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #02987 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (207) 793-4111

  • Valorie J Sibley-Daigle

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #05477 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    (978) 827-5944

  • William Shapleigh

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03993 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (207) 384-7070

  • Zachary Jablonski

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05454 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    (978) 372-7136

  • Alexandra R Smith

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05577 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Andrew Walters

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #03802 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    No phone on the state list

  • Arnold Winn

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04784 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Arthur Andrews

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04452 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Bill Hall

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #02315 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Brent Cadwell

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05191 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Brian D Hussey

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05231 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Brian L Saunders

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05649 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Brian Piper

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05336 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Bruce Budnick

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03202 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Bryan Gorman

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05517 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Christopher Hayward

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04957 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Connor Lincoln

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05687 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Dale Snader

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #01686 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Dave Perry

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05225 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • David Doucette

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03142 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • David I Walsh Jr

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04202 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • David Koziol

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03941 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • David T Leary

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04859 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Dean B Jordan

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #01999 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Dwayne Clement

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #02732 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Dwight Bickford

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05245 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Eamonn H Donovan

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04667 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • George Benway

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05624 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Harold W Lunnie

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05627 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Harvey Gagnon Jr

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #02924 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Henry A Richard

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #01957 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Jake L Tetreault

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03828 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • James C Cook

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04903 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • James E Connick

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05077 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • James Guy

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03112 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • James R Guy

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05257 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • James Tusino

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #02700 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Jared F Allain

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05737 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Jason Murray

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04787 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Jason Sterling

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #04434 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    No phone on the state list

  • Jay Alexa

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04884 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Jerry Kennett

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04710 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • John Davidowicz

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #02039 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Kennth Hill

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05842 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Lonn M Livengood

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #02773 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    No phone on the state list

  • Louis Baldoumas

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03330 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Malcolm Ward

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03371 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Mark Peeler

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04802 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Michael F Copp

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #05246 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    No phone on the state list

  • Michael K Mazzotta

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #01793 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Michael King III

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05591 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Michael Mccarthy

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #01905 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Michael S Mcguigan

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #03190 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    No phone on the state list

  • Nassar G Jabour Jr

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #01489 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Neil B Johnsen

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05732 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Peter Antosh

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04058 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Peter J Paul

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04016 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Robert H Snyder

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #04099 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Robert M Grasso

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #04645 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    No phone on the state list

  • Robert Mahoney

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03326 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Robert Pondelli

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05197 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Robert Ratta

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05286 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Ronald A Simpson

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #04538 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    No phone on the state list

  • Ronald P Lamarre

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03687 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Russell Sylvester

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #02625 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Stephen C Palmer

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #03057 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    No phone on the state list

  • Steven Guttadauro

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #02264 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    No phone on the state list

  • Steven J Busch

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #03341 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • Tristan J Brennan

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Installer · #05755 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation

    No phone on the state list

  • W G Rogerson

    NH

    • Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #03253 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)

    Per state license: Installation · Perc testing

    No phone on the state list

Septic companies in New Hampshire: common questions

How many licensed septic companies are in New Hampshire?

The Septic Guide lists 1,541 septic companies and licensed septic professionals in New Hampshire; 1,541 are matched to the New Hampshire Department of Environmental Services, Subsurface Systems Bureau license or certification lists (data as of October 2026). 710 have a phone number listed; the others appear on the state list without one.

Do septic contractors need a license in New Hampshire?

Yes. 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.

How do I check a septic license in New Hampshire?

Search the contractor on the NH Department of Environmental Services, Subsurface Systems Bureau's lookup (https://www.des.nh.gov/land/septic-systems/septic-designer-or-installer). Every license badge in this directory links to the agency's own lookup.