Licensed Septic Companies in Windham, NH
10 septic companies serve Windham, New Hampshire, and 10 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 Windham
Guides: Septic system installation · Installation cost · Pumping cost
10 septic companies in Windham
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Adam J Suliveras Jr
22 Horseshoe Rd, Windham, NH 03087 · Rockingham County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #05843 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
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Charles Beshara
17 B Mammoth Rd, Windham, NH 03087 · Rockingham County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #04369 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
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Christopher A Vitiello
Po Box 334, Windham, NH 03087 · Rockingham County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #05839 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
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John E Morrison
17 Roulston Rd, Windham, NH 03087 · Rockingham County
- Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #02986 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation · Perc testing
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John Tokanel
152 Lowell Rd, Windham, NH 03087 · Rockingham County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #00701 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
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Robert Devlin
Po Box 81, Windham, NH 03087 · Rockingham County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #00803 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
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Joseph W Chamberlain
7 Wall St Ste 102, Windham, NH 03087 · Rockingham County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #02009 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
No phone on the state list
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Kenneth C Walsh
21 Armstrong Rd, Windham, NH 03087 · Rockingham County
- Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #01573 (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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Sean Devaney
Po Box 640, Windham, NH 03087 · Rockingham County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #04539 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
No phone on the state list
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Shane Pelletier
7 Taylor Farm Rd, Windham, NH 03087 · Rockingham County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #05136 (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 Windham 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 Windham: common questions
How many licensed septic companies are in Windham, NH?
10 septic companies serve Windham, New Hampshire, and 10 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 Windham?
10 listings in Windham 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.