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Mr. Furnace Heating & Air Conditioning St. Catharines​

Home heating, cooling & indoor air quality solutions in St. Catharines, Niagara and the surrounding areas.​​

Call to speak to a Home Comfort Advisor near you today.​

Book Online​

Heating & Air Conditioning for St. Catharines, Niagara and Surrounding areas

Our Home HVAC Services​

Predictable Solutions for Unpredictable HVAC Problems in St. Catharines

Nestled on the shores of Lake Ontario, the Garden City is ideally situated. We’ve got the best of both worlds living here, and between beautiful beaches and delicious wineries, there is no shortage of unique things to experience.

Mr. Furnace Heating & Air Conditioning has been the go-to choice for furnace, air conditioner, boiler, heat pump and air quality installation, repair, and maintenance in St. Catharines since we first opened in 1978. We’re proud to be locally owned and operated.

Our accreditation with the Better Business Bureau® holds us accountable to the highest standards of service, and we take both our craftsmanship and our customer service seriously, meaning we aren’t satisfied until you’re satisfied.

Dependable Heating & Cooling Services for St. Catharines Homeowners 24/7/365

As a homeowner, you put a lot of trust in your HVAC system to keep your home feeling comfortable all year round, so when it isn’t working as it should, it can be frustrating. Luckily, the certified techs at Mr. Furnace are always on-call whenever you need us, at no extra charge, for whatever HVAC problem comes your way.

See below for a full range of home comfort services available from Mr. Furnace.

Book a Home HVAC Service in St. Catharines with Mr. Furnace Today

Take advantage of our advantage. All of our services are backed by guarantees, so you’re guaranteed to have your HVAC or air quality problem solved just right, the first time.

Call 24/7/365 at (905) 688-6296 or book a home comfort service online today!

What to Expect From the St. Catharines HVAC Pros at Mr. Furnace

  • Local air conditioning repair technicians on call 24/7/365, with NO EXTRA CHARGE for weekend, holiday or after-hours service
  • 55+ years of quality service for homeowners in communities like yours
  • Service backed by guarantees that help ensure you & your family get the best in home comfort
  • Certified experts with G1, G2, 313A & 313D, 308A, ODP, Wardflex, and Supervisor Training Program & IHSA Health and Safety Education Program for Contractor Safety Essentials
  • Customer satisfaction comes first: average 4.6/5 rating on Google & 8.7/10 rating on HomeStars

Book a Home HVAC Service With the Pros at Mr. Furnace