Keep Your Air Conditioner in Tip Top Shape

We will get your air conditioner fixed in no time, so you can stay cool and beat the heat.

book service

Air Conditioning Repair for The Niagara Region & St. Catharines

What Sets Us Apart

No matter what time, day or night, we are here to help. With twenty-four hour service, assistance is just a phone call away. There is no additional charge for weekend, after-hours, or holiday service.

Our experienced technicians are fully accredited, so you can rest assured that your air conditioner is in good hands. After over forty years of fixing air conditioners, our team of experts can handle even the trickiest problems. Our technicians are highly trained, punctual, and efficient.

To help ensure that your air conditioner keeps running smoothly, we only use high-quality parts from trusted brands.

We aren’t satisfied until you are satisfied. That is why we offer a one year guarantee on all work we do. Our high standards for customer service have earned us an average 4.5-star rating on Google and an A+ rating from the Better Business Bureau.


Keep Your Home Perfectly Cool

Niagara may not be as warm as some places, but with the amount of heat packed into our short summers, it doesn’t hurt to be prepared. Our outstanding technicians are always available to ensure that your home stays cool and comfortable, even if your A/C unit is acting up or breaks down.

Mr. Furnace services all brands and types of air conditioning units, and we never upsell – our technicians simply aren’t in sales. Our goal is the best value for your home.

Is your air conditioner acting up? Book your in-home assessment today.

Our Guarantees

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.

Why Choose Us?


No Loopholes™

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.


No Hassles™

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.


Just Right™

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.


We Respect You™

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.

Call Us. We’re Very Friendly



Book Online

Over 40 Years of Expert Service

Since 1978, the friendly experts at Mr. Furnace have serviced over 15,000 homes and counting!

15, 000
Furnaces Installed
15, 000
Homes Serviced
Star Rating
On Google Reviews

Satisfaction Guaranteed

We guarantee all of our work for one year after the date of installation.

Decades of Experience

Mr. Furnace has been serving families in St. Catharines and the Niagara region since 1978.

Locally Owned & Operated

Our customers are our neighbours – we’ve been Serving local families for over forty years.

24-Hour Service

Reliable service, whenever you need it. No additional charge for after-hours, weekend, or holiday appointments.

Right Time™ Certified Technicians

All of our technicians undergo a thorough background check and extensive training.

Exceptional Customer Service

We have an average 4.5-star rating on Google, and the Better Business Bureau has awarded us an A+ rating.

24/7 365 SERVICE

Contact Us

phone arrow-circle-o-left arrow-circle-o-right arrow-right-circle facebook instagram twitter youtube