GroundRosterAppleby Plumbing & HeatingLicensed
| Name | Appleby Plumbing & Heating |
| License number | WDC.0000003-W9, WEC.0000002-W5, WGC.0000003-W7, WNC.0000231-W3, WWC.0000209-W1 |
| License type | LIMITED DIRECT EXCHANGE GEOTHERMAL CONTRACTOR · LIMITED GEOTHERMAL CONTRACTOR · NON-WATER SUPPLY CONTRACTOR · WATER SUPPLY CONTRACTOR · WELL CASING EXTENSION CONTRACTOR |
| License status | Active |
| License expires | 2027-04-30 |
| Based in | Old Saybrook, Connecticut 06475 |
"Based in" is the city on the business's state license record. That can be a mailing address; it doesn't tell you where the business works.
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What this license covers
- 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 Connecticut's official licensing records; we do not vouch for the business itself. Before hiring, look up license #WDC.0000003-W9, WEC.0000002-W5, WGC.0000003-W7, WNC.0000231-W3, WWC.0000209-W1 directly with the state, confirm it is still active, and ask for a current certificate of insurance.
Source: Connecticut DPH - eLicense credential extract (well & septic license types), last checked 2026-08-17. Verify at the official source.
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