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Licensed Well and Septic Contractors in New Hampshire

New Hampshire lists 2,063 licensed well and septic contractors: 226 well drillers and pump installers and 1,839 septic contractors, including 2 who hold both. They are based in 10 counties and 319 cities. 14 license classes appear, covering roles such as installation / repair, design and pump installation.

Checked against NH DES - Septic System Designers & Installers, NH DES - Well Contractors & Pump Installers, NHDES Permitted Septage Haulers and NH DES - Septic System Designers & Installers · NHDES Permitted Septage Haulers. Roster copy last refreshed 2026-08-16.

Browse by county or request free quotes.

Browse New Hampshire by county

Each listing sits under the county of the address on its license record, which can be a mailing address. 10 counties have listings based there.

Cities with the most listings based there

Septic Installers by city in New Hampshire

Septic System Installation cost guide

Septic Designers by city in New Hampshire

Septic System Design cost guide

Well Pump Installers by city in New Hampshire

Well Pump Repair cost guide

Looking for a specific contractor? Search by name, business name, or license number.

Hiring a well and septic professional in New Hampshire

Before you sign anything: confirm the license on this page is still active with the agency that issued it, ask for proof of insurance, and get at least three written quotes; pricing on this work varies widely by site conditions.

How do I check a well and septic professional's license in New Hampshire?

Use the license search to find the listing by name, business name, or license number, then confirm it with the agency that issued the license. Every listing links to the roster it came from.

What does well or septic work cost in New Hampshire?

Our cost guides give national ranges for well drilling, well pump repair, septic tank pumping, septic cleaning, repairs, and inspections. Site conditions, access, and local demand set the real number, so get at least three written quotes from licensed well and septic pros in New Hampshire.

Is a permit required?

Usually, for a new system or well and for most repairs, and the rules are set by the state or the county. Our New Hampshire permit guide covers who issues them and what they cover.

Licensed in New Hampshire, based in another state

67 well and septic pros hold a New Hampshire license but the address on the license record is in another state, so they aren't under a New Hampshire county.

A-ZONE ENVIRONMENTAL SERVICES LLCLicensed

Well
A-zone Environmental Services LLC · Based in Kearneysville, WV · License #2311

ALLIED DRILLING LLCLicensed

Well
Allied Drilling LLC · Based in Annapolis Junction, MD · License #3032

AQUIFER DRILLNG & TESTING INC

Well
Aquifer Drillng & Testing INC · Based in Waterford, NY · License #1860

ATLANTIC WATER SOLUTIONS, LLCLicensed

Well Pump Repair
Atlantic Water Solutions, LLC · Based in Alfred, ME · License #661

BETTS ENVIRONMENTAL RECOVERYLicensed

Well
Betts Environmental Recovery · Based in Adel, GA · License #2188

BOART LONGYEAR CO INC

Well
Boart Longyear CO INC · Based in Northborough, MA · License #1853

BRIGHTCORE ENERGY LLCLicensed

Well
Brightcore Energy LLC · Based in Mount Kisco, NY · License #3351

BRONSON DRILLINGLicensed

Well
Bronson Drilling · Based in Winchester, MA · License #1905

BRUTE LLCLicensed

Well
Brute LLC · Based in Berryville, VA · License #3254

CASCADE DRILLING LPLicensed

Well
Cascade Drilling LP · Based in Gardner, MA · License #1914

CASCADE TECHNICAL SERVICES

Well
Cascade Technical Services · Based in Schenectady, NY · License #1872

CHARLES M. ROLLINS CO., INC.Licensed

Well Pump Repair
Charles M. Rollins CO., INC. · Based in Boxford, MA · License #144

COUNTY PUMP & SUPPLY CO INCLicensed

Well Pump Repair
County Pump & Supply CO INC · Based in Leominster, MA · License #1798

CRAWFORD DRILLING SERVICES

Well
Crawford Drilling Services · Based in Gardner, MA · License #1934

CRUX SUBSURFACE INC.Licensed

Well
Crux Subsurface INC. · Based in Spokane Valley, WA · License #3114

DANDELION ENERGYLicensed

Well
Dandelion Energy · Based in Arlington, VA · License #3332

DBA JACE PEARSONLicensed

Well
DBA Jace Pearson · Based in Auburn, ME · License #1947

DRILEX ENVIRONMENTALLicensed

Well
Drilex Environmental · Based in Auburn, MA · License #1525

EAST COAST EXPLORATIONSLicensed

Well
East Coast Explorations · Based in Boothbay, ME · License #1854

ENVIRONMENTAL PROJECTS INC

Well
Environmental Projects INC · Based in Auburn, ME · License #1857

EXETER ENVIRONMENTAL ASSOCIATES INC

Well
Exeter Environmental Associates INC · Based in Exeter, TN · License #1807

GEOLOGIC EARTH EXPLORATION, INC.Licensed

Well
Geologic Earth Exploration, INC. · Based in Norfolk, MA · License #1592

GEOSEARCH, INCLicensed

Well
Geosearch, INC · Based in Sterling, MA · License #1782

GLACIER DRILLING LLC

Well
Glacier Drilling LLC · Based in Durham, CT · License #1938

GOSSELIN WATER WELLS INCLicensed

Well Pump Repair
Gosselin Water Wells INC · Based in Derby, VT · License #88

GOULD WELL DRILLING INC

Well
Gould Well Drilling INC · Based in Lyndonville, VT · License #1741

GREEN MOUNTAIN WELL CO INCLicensed

Well Pump Repair
Green Mountain Well CO INC · Based in Putney, VT · License #62

HYDROTECH PUMP CO.Licensed

Well Pump Repair
Hydrotech Pump CO. · Based in Ashby, MA · License #1362

JUDD GOODWIN WELL COLicensed

Well Pump Repair
Judd Goodwin Well CO · Based in Greenville, ME · License #1422

Justin CooperLicensed

Septic System Installation
Based in Gilmanton Iw, RI · License #05739

K & J WELL DRILLING INC

Well
K & J Well Drilling INC · Based in Belford, NJ · License #1593

KAS, INC

Well
Kas, INC · Based in Williston, VT · License #2548

LAYNE CHRISTENSEN COMPANY, INC.Licensed

Well Pump Repair
Layne Christensen Company, INC. · Based in Schoharie, NY · License #1351

LEGGETTE BRASHEARS & GRAHAM INC

Well
Leggette Brashears & Graham INC · Based in Essex Junction, VT · License #1856

LYNDE WELL DRILLING INCLicensed

Well Pump Repair
Lynde Well Drilling INC · Based in Guilford, VT · License #876

MAHER SERVICES, INC.Licensed

Well Pump Repair
Maher Services, INC. · Based in North Reading, MA · License #1849

MARCHEWKA ASSOCIATES INC (MAI ENV)

Well
Marchewka Associates INC (mai Env) · Based in South Portland, ME · License #1842

N A MANOSH CORPORATIONLicensed

Well
N A Manosh Corporation · Based in Morrisville, VT · License #1847

NEW ENGLAND BORING CONTRACTORS OF C

Well
New England Boring Contractors Of C · Based in Glastonbury, CT · License #1492

NEW ENGLAND GEOTECHLicensed

Well
New England Geotech · Based in Jamestown, RI · License #1780

NEW ENGLAND WELL & PUMP CO. LLCLicensed

Well Pump Repair
New England Well & Pump CO. LLC · Based in Dunstable, MA · License #1542

NORTHERN DRILL SERVICE, INC.Licensed

Well
Northern Drill Service, INC. · Based in Northborough, MA · License #1906

NORTHERN TEST BORING, INCLicensed

Well
Northern Test Boring, INC · Based in Gorham, ME · License #1335

PARKER WATER WELLS, INC.Licensed

Well
Parker Water Wells, INC. · Based in East Poultney, VT · License #161

PARRATT WOLFF INCLicensed

Well
Parratt Wolff INC · Based in East Syracuse, NY · License #1720

PHILIP SERVICES CORPORATION

Well
Philip Services Corporation · Based in Columbia, IL · License #1845

PINE & SWALLOW ASSOCIATES INC

Well
Pine & Swallow Associates INC · Based in Groton, MA · License #1826

PLATFORM, LLC.Licensed

Well
Platform, LLC. · Based in North Fayston, VT · License #1765

RECOVERY DRILLING SERVICESLicensed

Well
Recovery Drilling Services · Based in Dudley, MA · License #1368

RELIABLE WELL AND PUMP, LLCLicensed

Well Pump Repair
Reliable Well And Pump, LLC · Based in Tewsbury, MA · License #2588

SARGENT ARTESIAN WELLSLicensed

Well Pump Repair
Sargent Artesian Wells · Based in Fairlee, VT · License #1501

SIERRA ENVIRONMENTAL DRILLINGLicensed

Well
Sierra Environmental Drilling · Based in St. Albans, VT · License #2891

SIMA DRILLING COMPANY INCLicensed

Well Pump Repair
Sima Drilling Company INC · Based in Cheshire, CT · License #1670

SOIL EXPLORATION CORPLicensed

Well
Soil Exploration Corp · Based in Leominster, MA · License #1002

STREETER AND SONS WELL DRILLING INCLicensed

Well Pump Repair
Streeter And Sons Well Drilling INC · Based in Acton, ME · License #1825

TECHNICAL DRILLING SERVICES INC

Well
Technical Drilling Services INC · Based in Sterling, MA · License #1547

TERRA SONIC INTERNATIONAL

Well
Terra Sonic International · Based in New Ellenton, SC · License #1930

TLB ASSOCIATES INC

Well
Tlb Associates INC · Based in Glen Burnie, MD · License #1796

TRI STATE DRILLING & BORING INCLicensed

Well Pump Repair
Tri State Drilling & Boring INC · Based in West Burke, VT · License #1762

VALLEY ARTESIAN WELL CO INCLicensed

Well Pump Repair
Valley Artesian Well CO INC · Based in Ascutney, VT · License #245

VIERA ARTESIAN WELL LLCLicensed

Well
Viera Artesian Well LLC · Based in Groveland, MA · License #1932

VIERA WELL COMPANYLicensed

Well
Viera Well Company · Based in Georgetown, MA · License #370

WDC EXPLORATION AND WELLS

Well
Wdc Exploration And Wells · Based in Indianapolis, IN · License #1859

WELL WATER CONNECTION INC.Licensed

Well Pump Repair
Well Water Connection INC. · Based in Tewksbury, MA · License #3291

WESTERN MAINE WATERLicensed

Well Pump Repair
Western Maine Water · Based in Limerick, ME · License #1740

WESTON & SAMPSON CMR, INCLicensed

Well Pump Repair
Weston & Sampson Cmr, INC · Based in Reading, MA · License #1924

WRAGG BROTHERS WELL DRILLING CO.Licensed

Well Pump Repair
Wragg Brothers Well Drilling CO. · Based in Ascutney, VT · License #171, 173

Listings without a county

4 listings have no county we could place: the license record gives none, and its ZIP code or town doesn't settle one. Search by ZIP, or browse by the town on the record:

Permits and official New Hampshire resources

Do I need a permit for well or septic work in New Hampshire? ›

Where this New Hampshire data comes from