Hot Water the Way You Want It

Mr. Furnace installs, services, and maintains electric, gas, and propane hot water heaters.

Request a quote

The Hot Water Heater Experts For St. Catharines & the Niagara Region

What Sets Us Apart

Mr. Furnace has been the go-to choice for hot water heaters, furnaces, and air conditioners in St. Catharines and the Niagara region for over forty years. Our high standards, keen attention to detail, and friendly and knowledgeable staff you can rest assured that you are in good hands.

Our team of hot water heater installation experts will install your new hot water heater, make sure it is running smoothly, and answer any questions you may have.

We maintain our high standard of service by ensuring that all of our technicians have the right knowledge and certification for the job, and receive ongoing training. We stand behind all of the work we do and back our installations with a one year guarantee. All of our employees are required to pass a background check and be bondable.

In recognition of our outstanding commitment to world-class customer service, the Better Business Bureau gives us an A+ rating. We also have an average of 4.5 stars on Google.


Over 40 Years of Hot Water Expertise

Furnaces might be in our name, but we appreciate the relaxation and peace that reliably hot water can bring. We’re experts in all hot water makes and models, and know how to fit the perfect unit to your home.

Modern hot water heaters are more efficient than their older counterparts, so you and your family can enjoy the same amount of hot water while using less energy. Let us help you find the right hot water heater to suit your needs.

Could you use a new hot water heater? 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