
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:
- AC Repair in St. Catharines: We diagnose and repair issues quickly to restore your AC’s performance.
- AC Installation: Expert installation of energy-efficient units tailored to your home.
- Routine Maintenance: Preventative maintenance to extend the lifespan of your AC and avoid breakdowns.
Why Choose MACKAY Heating & Cooling?
- Trusted Since 1967: Over 50 years of delivering reliable HVAC solutions.
- Affordable Services: Transparent pricing and budget-friendly options.
- 24/7 Emergency Service: Quick response to any air conditioning emergency, day or night.
- Flexible Financing: You can enjoy home comfort without breaking your budget.
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If your air conditioner is outdated or beyond repair, MACKAY Heating & Cooling provides reliable AC Installation in St. Catharines.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.
How long does AC installation take 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.
What are the benefits of upgrading my AC in St. Catharines?
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.
How often should I schedule AC maintenance in St. Catharines?
Annual maintenance is recommended to keep your AC running efficiently and to prevent unexpected breakdowns during peak summer months.
Do you offer financing options for AC installation in St. Catharines?
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

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.