Licensed Septic Companies in Winchester, NH
7 septic companies serve Winchester, New Hampshire, and 7 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 Winchester
Guides: Septic system installation · Drain field repair · Installation cost · Pumping cost
7 septic companies in Winchester
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Charles Lawrence
579 Keene Rd, Winchester, NH 03470 · Cheshire County
- Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #03265 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation · Perc testing
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J Roy Excavating
83 Clark Road, Winchester, NH 03470 · Cheshire County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #05240 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
From their website: Installation · Drain field
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Jason Kristolaitis
133 Old Spofford Rd, Winchester, NH 03470 · Cheshire County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #05290 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
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Larry Holmes
190 Riverwood Road, Winchester, NH 03470 · Cheshire County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #04622 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
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Leonard W Lawrence Excavating Inc
32 Fairground Rd, Winchester, NH 03470 · Cheshire County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #02770 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
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William Mcgrath
77 Lake Shore Dr, Winchester, NH 03470 · Cheshire County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #04637 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
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James T Rokes, Jr
505 Old Spofford Rd, Winchester, NH 03470 · Cheshire County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #05686 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
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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 Winchester 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 Winchester: common questions
How many licensed septic companies are in Winchester, NH?
7 septic companies serve Winchester, New Hampshire, and 7 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 Winchester?
7 listings in Winchester 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.