Family-run HVAC. Furnace, AC, and heat pump install & repair across Markham, North York, Richmond Hill, Scarborough & Stouffville. Cantonese spoken.
High-efficiency furnace installation, repair, and seasonal tune-ups.
Central AC and condenser installs to keep you cool through Ontario summers.
Modern heat pumps deliver efficient heating and cooling in one system.
HRV/ERV systems and air handlers for healthier indoor air year-round.
Smart thermostat installs that put comfort at your fingertips and cut bills.
Regular maintenance keeps your system efficient and prevents costly breakdowns.
Rainbow HVAC is a family-run business serving Markham and the GTA for 15+ years. Every install and repair earns its reputation one happy customer at a time.
"Replaced our 20-year-old furnace last November. Professional, fast, and the price was fair."
"AC died in a heatwave. They came the next day, diagnosed it, and had us cool by evening."
"Heat pump install — clean work, fair quote, no upsell. Highly recommend."
Free service calls when you move forward with us. Honest pricing. Quick response. Call or email and we'll get back to you fast.
*Service call fee is waived when you proceed with the repair or installation through Rainbow HVAC and CO. A standard service call fee applies if you choose another provider or decline the work.