Heat pump installers in Windham, Maine

Questions

How many installers are listed in Windham?

15 with a Windham address in the Maine source, checked 2026-11-03. On this page: 15 labeled Ownership: unverified, 0 independent, 0 PE or platform-owned, 0 franchise. These are label counts. Unverified means no documented parent was matched and no positive independent evidence was recorded.

Where do these names come from?

The Efficiency Maine Residential Registered Vendor locator (the Heat Pumps service, distance any, ZIP 04101). Check a company on the Efficiency Maine vendor locator.

Does a listing mean the installer did a Manual J calculation?

No. That source does not say. Every listing says Manual J is not in the source. See the Manual J guide.

How do Maine heat pump rebates work?

Use the Maine rebate guide, which links the official program page checked 2026-11-03. Read Efficiency Maine residential heat pump rebates for the current offer. Labels on this page are explained in the methodology.