Browse the Top 5 HVAC Contractors Serving Waterloo, ON

Cross Heating & Air Conditioning provides expert HVAC services including furnace repair, AC installation, heat pump solutions, and water heater services to residential clients in Ontario. Established in 1987, we combine manufacturer-certified expertise with personalized service, offering 24/7 emergency support and financing options. Our commitment to quality is backed by lifetime warranties and a 100% satisfaction guarantee.

Markle Heating & Cooling specializes in residential, commercial, and industrial HVAC systems, offering installation, repair, and maintenance services for natural gas, propane, oil, and geothermal systems. With over 30 years of experience, we provide 24/7 emergency service, annual maintenance programs, and energy-efficient solutions like heat recovery ventilators and tankless water heaters. Our team serves both homeowners and businesses, ensuring optimal system performance and customer satisfaction.

Reitzel Heating & Air Conditioning is a Waterloo-based HVAC company serving residential, commercial, and institutional clients in southern Ontario. Specializing in heating, cooling, and air treatment systems, we combine over 60 years of experience with Carrier-certified expertise to deliver reliable, energy-efficient solutions. Our services include 24/7 emergency repairs, custom ductwork fabrication, and large-scale design-build projects for schools and industrial facilities.

Afterglow provides comprehensive HVAC and water heating solutions for residential and commercial properties across Waterloo Region. Specializing in energy-efficient systems since 1991, we offer air conditioning, heat pumps, boilers, and indoor air quality services with same-day availability. Our family-run business combines technical expertise with personalized service, serving Kitchener, Waterloo, Cambridge, Guelph, and surrounding communities.

Viessmann Manufacturing is a leading manufacturer of high-efficiency heating and renewable energy systems. We specialize in innovative boilers, heat pumps, and solar solutions designed for residential, commercial, and industrial applications. Our products combine sustainability, advanced technology, and energy efficiency to reduce environmental impact while ensuring long-term reliability and cost savings for customers.