We Replace, Repair, and Maintain Boilers

Our team of experts can keep your boiler running efficiently and reliably.

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Experienced Boiler Services Serving St. Catharines & the Niagara Region

What Sets Us Apart

Mr. Furnace has been installing, repairing, and maintaining boilers for families in the Niagara region and St. Catharines since 1978. From day one we have maintained an unwavering commitment to top quality customer service, quality parts and products, and world-class craftsmanship.

All of our service and installation technicians have the required certifications for the job, and receive ongoing training so that they are prepared for any problems they encounter. This ensures that every installation is done correctly and conforms to our high standards. All of our employees are required to pass a background check and be bondable.

Mr. Furnace has been the go-to choice for boiler installation, repair, and maintenance in St. Catharines and the Niagara region since we first opened in 1978.

We take both our craftsmanship and our customer service seriously, which means we aren’t satisfied until you are satisfied. Our entire team works hard to ensure that every interaction you have with us leaves you satisfied.


Your Boiler Experts Since 1978

An old, inefficient boiler can increase both your gas bill and your carbon footprint. Modern boilers are highly efficient and can provide you with a reliable, quiet, low-cost heating solution that reduces your gas consumption and reduce your chances of developing a leak.

All boilers require regular maintenance to ensure peak efficiency, safety, and comfort. But whatever your boiler needs may be, you can trust Mr. Furnace to get the job done Just Right ™.

Are you considering a new boiler? Could your current boiler use a checkup? 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



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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

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