Count on us for around-the-clock, 24-hour emergency service from our certified technicians-just one part of the full-service difference.


P.Gagnon & Son gives you a range of choices for protecting your price for heating fuel and for controlling your winter fuel bills.


Our service technicians have the expertise to install, maintain, and repair virtually any make or model system you have or want in your home.


A/C technician

Six A/C Installation Tips You Should Know

When you hire a professional contractor for an A/C installation in your Seacoast home, you want the process goes smoothly and successfully from beginning to end so you can enjoy the cool comfort of your home quickly and for years to come.

Child playing

Keeping It Fun: The Key to Teaching Propane Safety Your Children

When it comes to powering your home comfort equipment, you can’t get much safer than propane – but that doesn’t mean you can take propane safety for granted, especially if there are children living in your home.

Why proper Installation is the key to better HVAC efficiency

It’s a time most homeowners dread, but all know will eventually come: the time to replace your home HVAC system. The good news is that when that time comes, you’re likely in for a big time upgrade on efficiency compared to your old forced air system

Preparing for thunderstorms in your propane-powered home

Summer can be a great time for fun with your family, enjoying the heat and Seacoast oceanfront breezes.

Propane grill

Four Reasons to Switch to a Propane Gas Grill

Summer officially arrives this week here in southern Maine and New Hampshire, which means it’s prime grilling season in backyards throughout the Seacoast region.

Tankless water heater

Two Smart Ways to Heat Your Water

When most people think of a water heater, they think of a big metal can that takes up a chunk of their basement.

HVAC repair technician

250 Reasons to Choose P.Gagnon & Son for Heating and Cooling Equipment Installations

When it comes to delivering quality installations and service for your air conditioner or propane- or heating oil- fired home comfort equipment, the most important tool in a technician’s kit isn’t a wrench or some fancy high-tech diagnostic device.

Service worker

Summer Propane Maintenance

Summer’s almost here, and according to experts it’s going to be a doozy (if you have yet to schedule your annual A/C maintenance, do it soon – you’re going to need it!).

Indoor A/C

Warm Days Are Coming – Schedule A/C Maintenance Today!

Slowly but surely, temperatures are creeping up here in southern New Hampshire and Maine – and before you know it, it will be time to close the windows and escape from the damp, sticky New England summer heat.

Heating system

Three Things to Do for Your Heating System During the Spring

We know, your home heating system is probably the last thing on your mind now that we’re finally seeing some warmer weather here in southern Maine and New Hampshire.