AC Repair in St. Catharines

AC Repair in St. Catharines

AC Repair & Installation in St. Catharines

If you’re searching for AC Repair in St. Catharines, MACKAY Heating & Cooling is your trusted partner. We provide expert repair, installation, and maintenance services to ensure your home stays cool and comfortable during the summer months. With over 50 years of experience, our certified technicians can handle any air conditioning issue, from quick repairs to full system installations. We also offer 24/7 emergency support to ensure your cooling needs are met promptly, even during unexpected breakdowns. Simply search "AC Repair in St. Catharines" to locate us quickly.

Quality Products

Top-tier HVAC products for lasting comfort.

Affordable Prices

Competitive rates without compromising quality.

Local Technicians

Skilled professionals ensure perfect service.

Reliable Services

Dependable support, including 24/7 emergency care.

Our Services Include:

Why Choose MACKAY Heating & Cooling?

AC Repair in St. Catharines

When your AC isn’t working as it should, MACKAY Heating & Cooling offers professional AC Repair in St. Catharines. Whether your unit is making unusual noises, leaking, or not cooling effectively, our technicians will quickly diagnose and fix the issue. We work with all AC models and ensure your system operates efficiently to restore your home’s comfort. Our 24/7 emergency services are available to get your AC back up and running when you need it most. Simply search "AC Repair in St. Catharines" to locate us quickly.

AC Installation in St. Catharines

If your air conditioner is outdated or beyond repair, MACKAY Heating & Cooling provides reliable AC Installation in St. Catharines. We guide you through selecting the right, energy-efficient system for your home and perform seamless installation for optimal performance. Our team ensures your new AC system is properly sized, installed, and tested to keep you cool during the summer. We also offer financing options, making it easy to upgrade to a more efficient system that lowers your energy bills. AC Repair in St. Catharines

Service Areas:

We proudly serve St. Catharines and the surrounding areas, including Niagara Falls, Niagara-on-the-Lake, Welland, Thorold, Grimsby, Port Colborne, Pelham, and Smithville. Wherever you are in the Niagara region, MACKAY Heating & Cooling is ready to provide expert AC repair and installation services. AC Repair in St. Catharines

Frequently Asked Questions (FAQs)

How do I know if my AC needs repair in St. Catharines?

If your AC is making strange noises, not cooling effectively, or causing higher energy bills, it’s time to call for AC repair in St. Catharines.

Most installations in St. Catharines take one day, but the time may vary depending on your home’s requirements and the system’s complexity.

Upgrading to a modern, energy-efficient AC unit lowers energy costs, improves cooling performance, and enhances comfort during the hot summer months in St. Catharines.

Annual maintenance is recommended to keep your AC running efficiently and to prevent unexpected breakdowns during peak summer months.

Yes, we offer flexible financing options to make it easier for homeowners in St. Catharines to upgrade to a new AC system. Contact us for more details.

For affordable AC Repair in St. Catharines, trust MACKAY Heating & Cooling.

Contact us today to schedule a service or get a free estimate!

HVAC Service Areas Across Niagara Region

4.7
Based on 228 reviews
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V. Ganiyev 3382
21:48 21 Dec 24
24 hours fast and professional. No complains
Sylvain Louchez
23:53 19 Dec 24
Terry Church
15:03 14 Dec 24
Fast, effective service. Going to bed Friday night, discovered no furnace heat on the current coldest night of the year. Called MacKay service line, talked to the weekend service guy. He arrived early the next morning, diagnosed the problem, had the required part in his truck. Replaced the part and confirmed the furnace was now running properly. Thanks Josh for a job well done.
mike hughes
20:29 09 Dec 24
They installed a replacement cold-weather heat pump on my existing furnace. The estimator, Fred, was courteous, knowledgeable and straight forward. The crew did a great job of installation and clean up. The system appears to be working very well.
John Crompton
16:39 09 Dec 24
Shelley Martin-Ross
00:19 04 Dec 24
We have always received great service. The staff and technicians are all so very friendly and very professional.
Scott Stacey
19:06 03 Dec 24
Excellent service. Been with mc Kay for almost 20 years
Janice Edwards
17:27 03 Dec 24
Annual reminders and maintenance scheduled at appropriate times early in heating season. Service appointments prompt and efficient.
Trevor Swaby
15:05 30 Nov 24
Great quick same day service with a smile
Rocco Vertucci
22:41 25 Nov 24
Very professional, on time and courteous!
Tony & Susan Venditti
22:11 25 Nov 24
MacKay Heating and Cooling came quickly when called. Andrew arrived on time and outlined our options. With a 44 year old furnace and 35 year old air conditioner ( Mac Kay 1989) it was time for replacement. A new HVAC system plus a hot water tank was ordered and installed by a very professional team who worked steadily for two days completing the install, clean up and set up of the system. Quite amazing.After the first weekend with our new furnace we are pleased to have heat evenly distributed throughout house – a first for us. Lots of hot water too!Being family run & locally owned was a bonus. We highly recommend MacKay Heating and Cooling.
Ivan Plamondon
22:05 25 Nov 24
It’s been 11 years since MacKay Heating and Cooling installed our Veisman boiler and hot water tank. We have used their yearly service in order to keep our home worry free from heating issues. Service techs are very knowledgeable and provide preventative maintenance tips in order to prevent any subsequent failures. Excellent service year after year.
Colin Brzezicki
13:43 15 Nov 24
Cameron arrived promptly and worked efficiently. He was personable and easy to chat to. Very thorough in his examination of my heating/cooling/humidifier systems, and he spent time adjusting my programmable thermostat so that even I can operate it. Great work all round, thank you.
Debra Baker
15:45 12 Nov 24
Fantastic customer service from very knowledgeable staff and technicians. Always a pleasure to see them at our house for annual maintenance checks.
Paul Lemire
13:13 12 Nov 24
Excellent service. Tech arrived on time and did all the work efficiently and thoroughly. Can recommend to anyone – MacKay are THE professionals in HVAC.
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Contact Info
  • 2517 First Street Louth, St. Catharines, ON L2R 6P7
  • (905) 688-1849
  • info@mackayheating.ca

Don’t let HVAC issues disrupt your comfort!

Our certified technicians are available to handle all your heating and cooling needs.

Schedule an Appointment

We will do our best to accommodate your preferred appointment time based on our current schedule availability.