GroundRosterTobin KnowltonLicensed
| Name | Tobin Knowlton |
| License number | WD02132 |
| License type | Open Loop Geothermal, Pump Installer - Master, Well Driller - Master |
| License status | Current - Maine DHHS roster, expires 2026-12-31 |
| License expires | 2026-12-31 |
| Location | Limerick, Maine 04048 |
| Phone | (207) 793-2201 |
Request a quote from Tobin Knowlton
What this license covers
- Drilling / construction: licensed to bore, case, complete, and plug water wells.
- Pump installation: licensed to install, repair, and replace well pumps, pressure tanks, and the piping between the well and the building.
- Geothermal loops: also licensed to bore the open- or closed-loop wells that serve a ground-source heat pump.
How to verify this license
We publish this listing exactly as it appears in Maine's official licensing records; we do not vouch for the business itself. Before hiring, look up license #WD02132 directly with the state, confirm it is still active, and ask for a current certificate of insurance.
Source: Maine DHHS - Well Driller & Pump Installer License Holders, last checked 2026-08-17. Verify at the official source.
Are you Tobin Knowlton? Claim this listing to set your business name and add your website, service area, hours, and photos. It's free.