Licensed Septic Companies in Alton, NH
18 septic companies serve Alton, New Hampshire, and 18 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 Alton
Guides: Septic system installation · Installation cost · Pumping cost
18 septic companies in Alton
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Gregory Vachon
P.O. Box 1443, Alton, NH 03809 · Belknap County
- Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #04800 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation · Perc testing
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James A Herrick
58 Old Wolfeboro Road, Alton, NH 03809 · Belknap County
- Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #04039 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation · Perc testing
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James P Varney
102 Stonewall Rd, Alton, NH 03809 · Belknap County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #03673 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
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Jeffrey Brownell
175 New Durham Rd, Alton, NH 03809 · Belknap County
- Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #05495 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation · Perc testing
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Mark Tilton
462 Halls Hill Rd, Alton, NH 03809 · Belknap County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #05533 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
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Mike Lundy Excavation
Po Box 908, Alton, NH 03809 · Belknap County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #03091 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
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Ryan L Heath
Po Box 232, Alton, NH 03809 · Belknap County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #05814 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
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Thomas Varney
93 Powder Mill Rd, Alton, NH 03809 · Belknap County
- Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #00357 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation · Perc testing
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Allen D Morrill
Po Box 113, Alton, NH 03809 · Belknap County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #02027 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
No phone on the state list
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Charles Mckay Jr
414 Old Wolfeboro Rd, Alton, NH 03809 · Belknap County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #04954 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
No phone on the state list
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Cody T Grenier
198 Old Wolfeboro Rd, Alton, NH 03809 · Belknap County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #05759 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
No phone on the state list
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Donald C White
80 Heron Point Rd, Alton, NH 03809 · Belknap County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #03292 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
No phone on the state list
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James Locke II
16 Varney Rd, Alton, NH 03809 · Belknap County
- Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #01525 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation · Perc testing
No phone on the state list
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James Parandes
445 Dudley Rd, Alton, NH 03809 · Belknap County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #03764 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
No phone on the state list
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John Goodrich
239 Henry Wilson Hwy, Alton, NH 03809 · Belknap County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #05269 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
No phone on the state list
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Richard J Lane
Po Box 310, Alton, NH 03809 · Belknap County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #02828 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
No phone on the state list
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Ryan L Stockman
2 Oneill Rd, Alton, NH 03809 · Belknap County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #05802 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
No phone on the state list
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Scott Simonds
Po Box 441, Alton, NH 03809 · Belknap County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #05355 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
No phone on the state list
No listings match those filters.
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 Alton 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 Alton: common questions
How many licensed septic companies are in Alton, NH?
18 septic companies serve Alton, New Hampshire, and 18 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 Alton?
18 listings in Alton 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.