Save 20% On Air Conditioning Repair in St. Catharines & Niagara

Get This Deal

24 Hour Air Conditioner Repair for 20% Less 

AC breakdowns are no sweat when you’ve got the guys in the green truck helping you save big bucks.  

For a limited time this summer, Mr. Furnace is bringing St. Catharines & Niagara homeowners a sweet treat to beat the heat, with 20% off the cost of air ALL conditioning repair services near you. 

Our certified AC technicians are on call 24/7/365, with NO EXTRA charge for weekends, holidays, after-hours or emergency service. 

Call us at 905-390-1726 or book a repair service online today!

Why Choose the Pros at Mr. Furnace for AC Repair?

Mr. Furnace Heating and Air Conditioning provides homeowners with reliable, round-the-clock residential repair services for central air systems across St. Catharines, Niagara and the surrounding areas:

  • 24/7/365 residential service for air conditioner leaks, frozen AC, compressor repair, fan troubles, lack of cool air & all other central air issues
  • Emergency & last minute home appointments available
  • 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
Call us at 905-390-1726 or request a book a repair service online today!


What Sets Mr. Furnace 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.

Frequently Asked Questions

Your best bet for this situation is to be educated on both options. Complete a thorough assessment of each scenario, and decide for yourself whether repair or replacement would be better for your home in the long run. There’s no simple answer to a question like this, but a Home Comfort Advisor would be happy to help you figure it out.

Our average wait time for repair is within 4 hours of when the call has been made, and usually the same day. We are available 24/7 to assist with repairs.

No, we never charge extra for repair, regardless of when it is needed. Whether during the holidays, after regular business hours, or even on the weekend, our repair rates remain the same.

Absolutely. The best way to ensure you are not paying more than necessary (in both money and time) for unexpected repairs is to have a yearly maintenance check done. Be sure that this is completed by a licensed technician. With regular maintenance checks, you can maintain the health of your unit, fix issues before they develop further, and also extend the life of your appliance.

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

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.

Contact Us For a Quote on HVAC Services in St. Catharines and & the Niagara region

24/7 365 SERVICE

905-688-6296 Request a Quote
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