HVAC Services in St. Catharines & Surrounding Areas
Heating, cooling & air quality solutions to make your home feel just right, 24/7/365.

Furnace & Air Conditioning Services in St. Catharines & Niagara Since 1978
Mr. Furnace Heating and Air Conditioning is your trusted source for home HVAC services across St. Catharines & the Niagara area.
Serving the Niagara region for over 45 years, our team of qualified technicians is proud to provide fast, friendly and affordable installation, maintenance and repairs for furnaces, air conditioning, boilers, water heaters & air quality products to maximize your home comfort, 24/7/365.
Furnace Installation
Furnace Repair
Furnace Maintenance
Boilers
Air Conditioning Installation
Air Conditioning Repair
Forced Air Conditioning
Ductless Air Conditioning
Heat Pump Installation & Repair
We are committed to providing you with high-quality, unwavering customer service. We aren’t satisfied until you are satisfied, which means we will do everything possible to ensure your experience with us is a great one.
Whether we are installing an air conditioner or repairing your furnace, the team at Mr. Furnace stands behind our work. We aren’t satisfied until you are satisfied, and we will do everything we can to ensure that your experience with us is a great one.
1
We aren’t satisfied until you are 100% satisfied with our craftsmanship, products, and materials. If within two years of the date of installation, you are not completely satisfied with our service or the quality and performance of your home comfort system, and we can’t make it right for you then we will gladly remove the system and return your original investment.
2
If your new system breaks down within the first year, leaving you without heating or cooling, we guarantee that we will repair your equipment within twenty-four hours of your call or we will fix your problem for free and give you $1,000 to apologize for the inconvenience.
3
Not too hot, not too cold… Just Right!™ If your system does not achieve the temperature you desire, we will make any modifications up to and including replacing the entire system at no charge.
4
We promise that while our technicians are in your home, they will respect your property, protect it from damage, and leave their work area as clean as they found it. If we fail to meet any of the high standards we have set for ourselves, we will give you our full Five Year System Check-Up Package free of charge.
Mr. Furnace Heating and Air proudly provides St. Catharines & the Niagara surrounding area with quality residential home comfort services.
We guarantee all of our work for one year after the date of installation.
Reliable service, whenever you need it. No additional charge for after-hours, weekend, or holiday appointments.
Mr. Furnace has been serving families in St. Catharines and the Niagara region since 1978.
All of our technicians undergo a thorough background check and extensive training.
Our customers are our neighbours – we’ve been Serving local families for over forty years.
We have an average 4.5-star rating on Google, and the Better Business Bureau® has awarded us an A+ rating.
“From the home comfort specialist to the installers, Mr. Furnace was a pleasure to deal with and very accommodating. They went above and beyond from initial consultation to the end of installation. They committed to everything they said they would do and more. All work is certified and looks very clean and neat. They are even coming back in the spring for AC unit start up. If you need a new furnace, air conditioner, or just service I highly recommend Mr. Furnace.“