The rebate programs for both Efficiency Maine and NHSaves are now live! Our Rebates page on our website has been updated and filled with helpful information and links. We encourage you to check it out! New for 2026 for Maine residents is a very substantial incentive for single wide mobile home owners - they can see over $12,000 in rebates for central heat pump upgrades. NHSaves has updated all the qualifying heat pumps to only offer rebates for new equipmet using the refrigerant - all...

We are proud to announce Our 5 Star Experience (Our Promise To You!) Call today to ensure we give you Our 5 Star Experience! Key Heating & Cooling has been in business for over 33 years and that is by no accident! We have a nearly perfect rating on Google and take pride in each and every review we earn! We have worked hard over the years to ensure our employees are taken care of so in turn they can take care of you and home comfort. We provide a good work environment, regular training,...

Curios about how Heat Pump Hot Waters Heaters work? A heat pump water heater (HPWH) uses electricity to move heat from surrounding air into a storage tank , making it 2-3 times more efficient than standard electric models by transferring heat rather than generating it, significantly cutting energy costs and dehumidifying the space, often in a hybrid system with backup electric elements for high demand. These units work like a reverse refrigerator, pulling ambient heat, and are praised for...