Your Local Heating & AC Experts

Chiasson’s Heating and Air Conditioning is proud to be committed to your total home comfort. More than anything we want you to feel confident in choosing Chiasson’s Heating and Air Conditioning for your home. Chiasson’s offers the BEST price and warranty for residential & commercial, heating and air conditioning.

Our Customers become our Friends!

We offer free on-site estimates for new and replacement systems. We also have maintenance and service contracts.

During an emergency, don’t hesitate to call. We have 24-hour emergency heating and air conditioning repair service. 24-hour Emergency Service on Oil & Gas Furnaces.

In addition to maintenance and service contracts, we offer up to 10-year warranties for parts and labor.

Heating Systems

Furnace repair, boiler repair, with a specialty on oil furnaces

Air Conditioning Systems

Central AC system installation, duct work repair and more

Hot Water Heaters

Water heater installation and more

Duct Cleaning Service

Improve your air quality – help with allergies

Generac Generators

Authorized service dealer

Dehumidifiers & Humidifiers

Installation and Repairs


    review rating 5  Chuck was able to squeeze us in during the afternoon. He was able to troubleshoot why we had been having issues for the past few winters and provide replacement parts for an old boiler right on the spot. A very solid and easy experience!

    thumb Rene Ferris

    review rating 4  They do what they promise! Had an after hours furnace issue on a very cold night. Chiassons was the ONLY place to answer their "24/7 Emergency" number. I called many places and most did not answer and didn't even have a way to leave a message. Of the few I was able to leave a message for only ONE ever called me back. Unfortunately for them it was 20 minutes after I called Chiassons and spoke w/ the owner immediately. Someone was at my house in less than 30 minutes. It took a couple trips to keep the furnace running but they eventually got it and always responded right away. When I replace this old furnace guess who I'll stop in to see FIRST?

    thumb ed yates

    review rating 5  They are the only company I call when needing help. They maintain my boiler which is very old and just last year replaced my water heater for me. They do excellent work with fair pricing, and the guys are very knowledgeable. I would highly recommend!

    thumb Paula


Contact Us

With over 30 years of experience installing and repairing HVAC systems, Chiasson’s Heating and Air Conditioning Inc. has been offering the sale, service and installation of heating and cooling systems, as well as hot water heaters, in the Oswego, NY area since 1999. Contact us today to let us help you!

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