MAINLINE PLUMBING & HEATING CO LLCLicensed

License details

"Based in" is the city and county of the address on the business's license record.

What this license covers

• Pump installation: licensed to install, repair, and replace well pumps, pressure tanks, and the piping between the well and the building.

How to verify this license

We publish the license details exactly as they appear in the official licensing records of the agency that issued the license; we do not vouch for the business itself. Before hiring, look up license #1678 directly with the agency that issued it, confirm it is still active, and ask for a current certificate of insurance.

Source: NH DES - Well Contractors & Pump Installers, last checked 2026-08-16. Verify at the official source.