Licensed Well and Septic Contractors Based in Merrimack, NH

19 licensed well and septic pros based in Merrimack. Every license number below is sourced from official licensing records, with a link to verify it yourself.

"Based in" is the city on the business's license record. That can be a mailing address; it doesn't tell you where the business works. Businesses based in nearby towns may also work here.

Browse Merrimack by service

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

Services in Merrimack, with national cost ranges

Listings based in Merrimack whose license class covers each service. Cost ranges are national; each links its cost guide.

None of the listings based in Merrimack hold a license class we can match to septic tank pumping, septic inspection, perc test and soil evaluation or well drilling. Ask any contractor whether they do this work, or browse the listings based in Hillsborough County.

Listings that hold a matching license class, based in nearby towns rather than in Merrimack, for the services with fewer than 3 here. Nearest first, in straight-line miles from the center of Merrimack:

Well Pump Repair

• JEFFREY T MANSON, based in Amherst, about 5 miles away
• SKILLINGS & SONS LLC, based in Amherst, about 5 miles away
• ETHICAL HOME PRO, based in Bedford, about 5 miles away
• MAINLINE PLUMBING & HEATING CO LLC, based in Londonderry, about 7 miles away
• ROB ROY MECHANICAL CORP, based in Londonderry, about 7 miles away

Hiring a well and septic professional in Merrimack

Before you hire, confirm the license is still active with the agency that issued it and get at least three written quotes.

Homeowner guides

• What Is a Septic Tank and How Does It Work?
• No Water From Your Well? What to Check First
• Well Water Testing: What to Test For and How Often
• Do I need a permit for well or septic work in New Hampshire?

Nearby cities