Licensed Septic Companies in Laconia, NH
11 septic companies serve Laconia, New Hampshire, and 11 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 Laconia
Guides: Septic system installation · Installation cost · Pumping cost
11 septic companies in Laconia
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B Jean Excavation LLC
2579 Parade Rd, Laconia, NH 03246 · Belknap County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #02426 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
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Dunn Asphalt Paving
Po Box 6308, Laconia, NH 03247 · Belknap County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #04060 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
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Jason M Drouin
Po Box 7405 Gilford, Laconia, NH 03247 · Belknap County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #05784 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
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Joshua Lahey
112 White Oaks Rd, Laconia, NH 03246 · Belknap County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #04363 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
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Ron Deducca
Po Box 1534, Laconia, NH 03247 · Belknap County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #04386 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
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Watermark Marine Construction
1218 Union Ave, Laconia, NH 03246 · Belknap County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #04654 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #03625 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
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Daniel Moeller
728 Scenic Rd, Laconia, NH 03246 · Belknap County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #05720 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
No phone on the state list
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Dave Farley
Po Box 7464, Laconia, NH 03247 · Belknap County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #03144 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
No phone on the state list
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Dennis R Fogg
600 White Oaks Rd, Laconia, NH 03246 · Belknap County
- Licensed: New Hampshire NHDES Permitted Septic System Designer and Installer · #02662 (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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Peter L O'Hearn
P.O. Box 7167, Laconia, NH 03247 · Belknap County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #04763 (New Hampshire Department of Environmental Services, Subsurface Systems Bureau, verify)
Per state license: Installation
No phone on the state list
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Stephen Converse
286 White Oaks Rd, Laconia, NH 03246 · Belknap County
- Licensed: New Hampshire NHDES Permitted Septic System Installer · #03632 (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 Laconia 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 Laconia: common questions
How many licensed septic companies are in Laconia, NH?
11 septic companies serve Laconia, New Hampshire, and 11 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 Laconia?
11 listings in Laconia 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.