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About MACKAY Heating & Cooling
Trusted HVAC service provider in Niagara region since 1967
We provide complete heating, cooling, and indoor air quality services, including installation, HVAC repair, and maintenance for furnaces, air conditioners, water heaters, and more. Our priority is customer satisfaction and reliable emergency support.
For over 50 years, homeowners across the Niagara Region have trusted us for expert HVAC service. We repair and service all major brands of furnaces, air conditioners, heat pumps, and mini-split repair, delivering reliable solutions to keep your home comfortable in every season.
Our technicians are certified gas fitters in Ontario, fully insured, and bonded for your peace of mind.
Services We Offer
We Provide Full Range of HVAC Services
Watch our video
Trusted Since 1967
Quality Products with Affordable Pricing
Why choose us
Why you Should Choose our HVAC Services
Brands we sell & service
With over 50 years of experience in the Niagara Region, we service and repair any brand or all major brands of furnaces, AC units, heat pumps, and mini-splits.
What Our Customers Are Saying
Stephen K.
1 day ago
Fast and professional install of smart thermostat. Would definitely use MacKay again for future HVAC needs.
Eric Ricker
7 days ago
My boiler needed service and one of my radiators was leaking. I called and had a team out the next day to fix the issues. They went above and beyond to make sure everything worked perfectly. I couldn’t have asked for better service and at an excellent price!
Glenn Morocco
2 weeks ago
The tech was on time very courteous explained the issues repaired it quickly and cleaned the air conditioning unit very pleased would recommend this company
Nancy Reed
2 weeks ago
Very pleased with the service
Kat Best
3 weeks ago
Visit was ok. I was on time coming from 3hrs away. When i got there i received a message that Tyler would be there in afternoon. (Changed from 11-1 to 1-3)
Tyler took measurements 1/2 week before installation.
Mario Carpino
3 weeks ago
Great team to work with. technicians are well versed in their trade and very kind and informative. Work was super clean and did exactly what they said they would. McKay is second to none.
Marlene Moore
2 months ago
In June I had a new furnace and A/C installed replacing the old.
Brady, Jesse and Tyler were great! Professional, polite, tidy
and answered all my questions. A great price !Everything was done at the times given.
Due to the flooding, I called to have them check out my furnace that all was well the morning after all the rain. They were here the next day and happily everything was working well. Even answered more of my questions! So happy that I chose Mackay Heating & Cooling!
Lillian Martingano
3 months ago
I recently had Mackay Heating & Cooling install a heat pump in my home, and I can’t say enough good things about the experience. From the first conversation with their Sales team through to the final installation, every single person I interacted with was friendly, knowledgeable and professional.
Their pricing was fair and transparent – no surprises – and the quality of service was outstanding from start to finish. What really stood out was their reliability. They met every commitment which is refreshing and all too rare these days.
If you’re looking for a heating and cooling company you can trust, look no further. I would recommend Mackay with complete confidence.
Jim Hickey
4 months ago
Ryan showed up on time for the appointment and had sent a notification he was on the way. Always appreciated.
Ryan did a thorough examination of our boiler, heat pump and indoor units. Filters and outdoor unit were cleaned. He answered my questions and gave me an update on the status of everything when he finished. Glad to hear everything is ready for the new season.
Ryan was courteous and neat. Would welcome him again.
Heather Dennis
5 months ago
Brady made this entire process painless. He was polite, friendly and efficient. He took time to explain what would be happening and took pictures so that I could see the changes (very thoughtful as I am mobility challenged). The use of booties and even a red carpet on my basement stairs to ensure there would be no mess for me to clean up was much appreciated. There was no pressure from Fred, the salesman, in any decision making and they were able to give me an appointment fairly quickly. Many thanks to all involved. I would definitely recommend MacKay Heating and Cooling.
nedra lobo
5 months ago
Amazing service! Steve was not only professional but took the time to answer all my questions. Thank you!
Natasha
5 months ago
Please read this. I noticed your business has some negative reviews that may harm it. If you want to remove negative reviews from your Google Business contact me via the details in my profile. (Natasha)
Romella Lina
5 months ago
It was easy booking with MacKay and they were transparent with the pricing. Tyler did a great job with our AC maintenance. He arrived on time and was efficient. We will definitely reach out to them again for future HVAC service.
Emil Ivanov
5 months ago
Dylan was right on time, very polite and professional, checked everything and finished his part in a timely manner. Thanks!
Diane L
7 months ago
I found McKay’s at the St Catharines Home Show back in 2014. We picked them because they were knowledgeable on the subject heat pumps – they installed a new furnace and heat pump for us a few months later – and we have been dealing with them ever since. Everyone we have dealt with has been extremely nice and more importantly, they all go out of their way to provide top quality service. It has been a pleasure dealing with everyone at MacKay Heating & Cooling, with much appreciation.
Working Steps
Solve your Issues in 4 easy Steps
01
Initial Consultation
Schedule a consultation where we evaluate your HVAC needs and provide a detailed estimate.
02
Installation or Repair
Our certified technicians arrive on time and perform the service with precision and efficiency.
03
Quality Assurance & Testing
We thoroughly test the system to ensure everything is working correctly and meets our quality standards.
04
Customer Satisfaction & Follow-Up
We review the job with you, answer any questions, and provide post-service support if needed.
Get in touch
We are here to help you & your Repair Problem
For professional HVAC Services, contact MACKAY Heating & Cooling today to schedule an appointment or request a free estimate!
From the blog
Our Tools & Tips for HVAC System Maintenance
Discover essential tools & expert tips for maintaining your HVAC system efficiently.
Frequently Asked Questions (FAQs)
Why should I choose MacKay Heating and Cooling for HVAC services in Niagara Falls?
MacKay Heating and Cooling has been a trusted local provider since 1967, offering over 50 years of experience. Our certified technicians deliver reliable, affordable, and customer-focused HVAC solutions, backed by 24/7 emergency support.
Do you offer 24/7 emergency heating and cooling repair services?
Yes, we provide 24/7 emergency heating and cooling repair services. Whether your furnace stops working in winter or your AC fails in summer, our team is available anytime to restore comfort to your home or business.
Can you repair all brands of heating and cooling systems?
Absolutely. Our technicians are trained to repair heating and cooling systems from all major brands. No matter the make or model, we can diagnose and fix the issue efficiently.
How quickly can I get local heating and cooling repair services?
We prioritize fast response times and often offer same-day or next-day service for local heating and cooling repair requests across the Niagara Region.
What types of heating systems do you repair and install?
We repair and install furnaces, boilers, heat pumps, and water heaters. Our team ensures your heating system operates efficiently and safely, especially during harsh Canadian winters.
Do you provide air conditioning repair and installation services?
Yes, we specialize in air conditioning repair and installation. Whether you need a quick fix or a full AC system replacement, we deliver energy-efficient cooling solutions tailored to your needs.
Are your HVAC technicians certified?
Yes, all our technicians are certified gas fitters in Ontario, fully insured, and bonded. This ensures safe, professional, and compliant HVAC service every time.
How often should I schedule HVAC maintenance?
We recommend scheduling HVAC maintenance at least once a year for heating systems and once a year for cooling systems. Regular maintenance improves efficiency, extends system lifespan, and prevents costly breakdowns.