Reliable HVAC Solutions in the Niagara Region

Your Trusted Local
HVAC Experts

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Anytime, Day or Night—We’re Here for You!

24/7 Emergency
HVAC Services

(905) 688-1849
Anytime, Day or Night—We’re Here for You!

24/7 Emergency
HVAC Services

(905) 688-1849
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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, repair, and maintenance for furnaces, air conditioners, water heaters, and more. Our priority is customer satisfaction and reliable emergency support.

Certified Team Members
Affordable HVAC Solution

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.

Our technicians are certified gas fitters in Ontario, fully insured, and bonded for your peace of mind.

More ABout Us
Schedule an Appointment
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24/7 emergency

(905) 688-1849
Services We Offer

We Provide Full Range of HVAC Services

Furnace Repair & Installation
Air Conditioning Repair & Installation
Boiler Repair & Installation
Water Heater Repair & Installation
Mini Split Repair & Installation
Heat Pump Repair & Installation
Indoor Air Quality Services
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Trusted Since 1967

Quality Products with Affordable Pricing

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Competitive pricing to fit your budget without compromising on quality.

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A legacy of trust, quality, and customer satisfaction in every project.

HVAC Service

Why choose us

Why you Should Choose our HVAC Services

Trusted Experience

Over 50 years of trusted HVAC service in the Niagara Region.

Certified Technicians

Skilled professionals with extensive training and expertise.

Customer-First Approach

Dedicated to delivering exceptional service and satisfaction.

24/7 Emergency Support

Always available to handle emergency HVAC needs.

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

MacKay Heating & Cooling
MacKay Heating & Cooling
4.6
Based on 178 reviews
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Keith RosettaniKeith Rosettani
20:47 21 Oct 24
These guys have been servicing our boiler for 10 years.. Always doing our yearly maintenance. They are always there when needed. They are fair and do not over charge. Thanks for coming out today Josh. Plus, Big thank you Monica for sending josh out today and filling a last minute cancelation with us.. You were needed..Highly recommend company…
Len HockleyLen Hockley
14:55 19 Oct 24
Furnace and A/C inspection and maintenance performed without issue. Local company. Tech was knowledgeable amd efficient.
Daniel OndrusekDaniel Ondrusek
20:18 17 Oct 24
Excellent service and advice regarding my furnace.
John FennJohn Fenn
16:34 16 Oct 24
Very fair, timely and professional service. Communication prior to and during the repair and service was excellent. Highest 5 star rating is well deserved.
Ben LichtyBen Lichty
00:44 16 Oct 24
MacKay installed our boiler 12 years ago and has been servicing it since. Their technicians are skilled, personable and reliable. Will continue to call them!
Gerry PiovesanaGerry Piovesana
19:14 12 Oct 24
I have been a customer of MacKay for 10 years now. They know their work and are reliable. I attach great importance to the fact that they are family owned. Have a question or concern, give them a call. You will get an honest answer, and they stand behind their word!
Josh BealJosh Beal
18:50 10 Oct 24
We recently moved to St. Catharines and had great experience with MacKay Heating & Cooling. One evening our hot water tank had stopped working properly, so the next morning I called to see if someone could fix the issue. Brenda was kind and very helpful in scheduling an appointment later that day and Andrew whom preformed the maintenance and also serviced our furnace ahead of the winter months arrived within the scheduled window. He was very friendly, polite and professional. The price was fair and communicated up front ahead of the appointment. I would 100% recommend to anyone and will use them again for future service work.
ErinErin
15:56 07 Oct 24
I had a very positive outcome when I called MacKay Heating and Cooling to give me a quote on a new hot water tank.The technician not only checked out the hot water tank but looked at the furnace and solved our leak.Thanks
Mark GaudetMark Gaudet
13:48 07 Oct 24
As usual, Tyler M was in and out in about an hour. He covered all the bases… a/c unit and furnace and checked things inside and outside the house.Great service.
Kirsty WoodbridgeKirsty Woodbridge
02:28 07 Oct 24
Fantastic company. Super easy to deal with and their staff are friendly and knowledgeable.
Pete alexanderPete alexander
22:38 04 Oct 24
I’ve used MacKay Heating for the past 14 years, ever since 2012 when they installed my HVAC in my home and there service has always been top quality. Service appointments are itemized as to what has been done , and always clean and professional.
Bryan mooneyBryan mooney
21:56 04 Oct 24
Workers were on time and efficient, knowledgeable, friendly. Very pleased with their work!
Kenn KraekerKenn Kraeker
13:18 26 Sep 24
Today I had a visit from Tyler who completed a maintenance service on my furnace . I was most impressed with his knowledge, friendliness and professionalism. He took time to explain everything to me and to make sure I was completely satisfied with his service. I would certainly recommend his service to anyone looking for a maintenance call. Thank you for helping with my nest thermostat and humidifier. A great experience.
Tim JonesTim Jones
15:27 23 Sep 24
We have dealt with Mackay’s for over forty years and they have always proved to be forthright and reliable. Our recent heat pump installation went without a hitch. We have recommended them to many family and friends – all were very satisfied with their service.
Jelena PetrovicJelena Petrovic
20:52 05 Sep 24
Excellent company, professional service, amazing staff! I cannot recommend this company enough! I called in order to get my outdoor heating and cooling unit serviced. Josh was super friendly, arrived on time, and happily answered all of my questions. He thoroughly cleaned the outdoor unit while also performing the annual service. Josh was also great at walking me through how to change the air filter if I ever wanted to change it myself. Wonderful company that clearly puts the customer’s needs and interests first! I will continue using them for all my heating and cooling needs!
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Working Steps

Solve your Issues in 4 easy Steps

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Initial Consultation

Schedule a consultation where we evaluate your HVAC needs and provide a detailed estimate.

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Installation or Repair

Our certified technicians arrive on time and perform the service with precision and efficiency.

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Quality Assurance & Testing

We thoroughly test the system to ensure everything is working correctly and meets our quality standards.

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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!

    Get your FREE
    Repairing Consultation

    (905) 688-1849

    info@mackayheating.ca
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