GroundRosterJohn S GilbertLicensed
License details
| License number | WD00053 |
| License type | Open Loop Geothermal, Well Driller - Master |
| License status | Current, Maine DHHS roster, expires 2026-12-31 |
| License expires | December 31, 2026 |
| Based in | Ellsworth, Hancock County, Maine 04605 |
"Based in" is the city and county of the address on the business's license record.
What this license covers
- Drilling / construction: licensed to bore, case, complete, and plug water wells.
- 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 the license details exactly as they appear in the public licensing records of the agency that issued the license; we do not vouch for the business itself. Before hiring, look up license #WD00053 directly with the agency that issued it, 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. Look it up at the issuing agency.
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