Gagnon Heating & Air Conditioning LLC

09/22/2026

Staged, prepped, and ready for install day! 📦⚡️

Indoor heads and outdoor units are wrapped and loaded in the warehouse, ready to bring year-round comfort to another Maine property.

09/16/2026

Energy-tight homes need fresh air. This Lifebreath Heat Recovery Ventilator (HRV) continuous air exchanger swaps out stale, indoor air for fresh outdoor air, all while keeping your hard-earned heat inside where it belongs.

Proper ventilation prevents moisture buildup, clears indoor allergens, and keeps your home’s air clean all year long.

09/11/2026

We will never forget.

Today, we honor the lives lost, the heroes who ran toward danger, and the resilience that brought us together.

09/10/2026

Is your home ready for another Maine winter? ❄️

It may seem early, but a little pre-season prep goes a long way toward lowering energy bills and staying comfortable:

✔️ Clean filters and check circulator pumps
✔️ Inspect insulation and seal drafty areas
✔️ Check available Efficiency Maine rebates (up to $3,000 for geothermal)

A well-maintained system keeps your space cozy even on the coldest nights.

Learn more about energy-efficient heating options at

Maine heating and air conditioning company using technology to solve today's heating and air conditioning needs. Number One in Geothermal, radiant heat, and central air systems.

09/08/2026

If you are designing or upgrading a premium property, standard HVAC solutions are a compromise on efficiency and building integration.

Geothermal technology isn't just an alternative energy trend, it is a sophisticated mechanical strategy that eliminates external component wear, reduces peak electrical demand, and delivers the lowest lifecycle operating costs available today.

Connect with Gagnon to review your system specifications. 🤝

09/03/2026

The best time to plan for January’s biggest blizzard is during August's brightest afternoons. ❄️🚜

If you are planning a new build or a major landscaping renovation this summer, consider adding an ultimate winter luxury: a custom hydronic snowmelt system. By running specialized, heated tubing underneath your concrete, asphalt, or paver driveway and walkways, you can completely eliminate shoveling, salting, and plowing.

Get a quote to integrate a snowmelt system into your upcoming layout plans at https://gagnongeothermal.com/

09/01/2026

Building a new home in Maine?

Integrating a geothermal heat pump alongside custom in-floor radiant heating delivers the ultimate combination of high-efficiency climate control and unparalleled comfort. No drafty vents, no baseline fuel costs. Just reliable home energy.

Discover our residential capabilities at https://gagnongeothermal.com/

08/24/2026

Is your current HVAC provider living up to your standards? If it’s time for a higher level of reliability, technical expertise, and local service, give Gagnon a call today. Let's make sure your comfort is handled right. 👉

Maine heating and air conditioning company using technology to solve today's heating and air conditioning needs. Number One in Geothermal, radiant heat, and central air systems.

08/20/2026

Built to Last, Crafted to Perfection.

This multi-port branch box setup is a perfect example of what happens when a crew takes absolute pride in their craft. Clean lines, zero shortcuts, and built to withstand the Northeast elements so your home stays perfectly comfortable year-round.

08/18/2026

How to take home comfort to the next level without disrupting your space!

This recessed ceiling cassette install is the perfect example of high-efficiency comfort meeting zero-compromise design. Fits right into the framing, leaving you with nothing but a flush, clean finish and perfect year-round temperatures.

Zero shortcuts. Maximum comfort.