Home Boiler Installation & Repair in St. Catharines & Niagara

Your home boiler experts for everything from setup and replacement to regular maintenance and repairs.

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24/7/365 Home Boiler Services

Mr. Furnace Heating and Air Conditioning provides homeowners across St. Catharines, Niagara and the surrounding areas with a full range of residential services for boilers, including: 

  • Full replacement & installation of boiler systems for the home 
  • Fast, post-installation home boiler emergency repairs, available 24/7/365  
  • Friendly ongoing maintenance that prevents long-term problems following your system setup  
  • Certified experts with three decades of experience and G1, G2, 313A & 313D, 308A, ODP, Wardflex, and Supervisor Training Program & IHSA Health and Safety Education Program for Contractor Safety Essentials 
  • Emergency & last minute home appointments available! 
Call us at 905-688-6296 or request a quote online today!


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.

Frequently Asked Questions

All types of boilers should undergo annual maintenance. A maintenance appointment once a year is an opportunity to have your boiler looked at by a professional. During your maintenance appointment, one of our expert boiler technicians will take the time to make any necessary adjustments and catch minor repairs before they turn into bigger issues.

Boiler installation usually takes at least one full day. How long your boiler installation will take depends on a variety of factors, so in certain cases installation can take up to two days. One of our technicians can provide you with a detailed time estimate based on your home’s needs after your free in-home assessment.

Both boilers and furnaces heat your home, but they do it using different methods. Boilers keep your home warm using radiant heating, which comes from hot water that is distributed to radiators throughout your home. Furnaces use forced air that is sent around your home via ducts and vents.

How often you need to replace your boiler depends on a few different factors, but you can expect to need a new boiler every 8 to 15 years. When exactly it’s time for a new boiler can depend on your boiler’s model, fuel type, and the maintenance of your boiler. If you’re unsure if it’s time for you to replace your boiler, call us for a free in-home assessment.

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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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

905-688-6296 Request a Quote
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