MacKay Heating & Cooling

MacKay Heating & Cooling has served the Niagara region since 1967, earning a 4.8-star rating across 399 reviews. The company provides 24/7 emergency HVAC services throughout Grimsby, St. Catharines, Niagara Falls, and Welland. Their team holds Ontario gas fitter certifications and maintains full insurance and bonding, offering installation, repair, and maintenance for furnaces, heat pumps, boilers, water heaters, air conditioners, and mini-split systems. Both residential and commercial clients receive service from technicians trained to work on all major equipment brands.

What distinguishes MacKay Heating & Cooling is their brand-agnostic expertise paired with round-the-clock availability. As certified gas fitters, their technicians can handle complex installations and repairs that require specialized licensing. The company prioritizes customer satisfaction and maintains a fully insured operation, giving homeowners peace of mind when inviting technicians into their homes. Their emergency response capability means clients never face heating or cooling failures alone, regardless of time or season.

Reviewers consistently mention specific technicians who delivered exceptional service. Tyler provided a detailed quote within an hour of contact, while Chris and Zack completed a water heater installation the following day. Ryan performed a thorough examination of a boiler and heat pump system, cleaning filters and outdoor units while explaining the equipment status to the homeowner. Brady went beyond standard service by using booties and laying protective covering on stairs, then taking the customer's garbage to the curb. These accounts reflect a team committed to both technical competence and respectful, thorough service.