Heating
Emergency Services

Our team is available 24/7.
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Current promotion Furnace Trade-In Event
Save up to $1500 when you trade in your old furnace. Includes: wifi thermostat, humidifier, uv air purifier ($2,500 value)*
Cooling
Emergency Services

Our team is available 24/7.
Call (226) 887-3052 to speak with one of our pros or schedule a service.
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Current promotion Furnace Trade-In Event
Save up to $1500 when you trade in your old furnace. Includes: wifi thermostat, humidifier, uv air purifier ($2,500 value)*
Heat Pumps
Emergency Services

Our team is available 24/7.
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Water Heater Promotion Water Heater $16.99/Month
Own your electric water heater starting at $16.99/month*
Water Heaters
Emergency Services

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- Water Heater Installation
- Water Heater Repair
Water Heater Promotion Water Heater $16.99/Month
Own your electric water heater starting at $16.99/month*
Plumbing
Emergency Services

Our team is available 24/7.
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Featured Promotion $93 or it's Free!
Book a $93 Main Drain Sewer Line Clearing & Camera Inspection. If we can’t get the water moving, it’s free! Valid on main drain sewer backups only.***
Get this deal
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Contact Dunn Heating and Air Conditioning

Dunn offers 24/7 emergency HVAC service in Waterloo with no added charges for evening or weekend calls. Our experienced technicians respond quickly, often the same day, to inspect, repair, and restore comfort. Call us today, the Dunn team is standing by 24/7 to assist you with all your home comfort needs.

For 24/7 Emergency Service,
Call (226) 887-3052

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A Dunn technician in a white shirt shows service details on a tablet to a smiling client in a black jacket, standing beside an AC unit outside a beige building.

Dunn Heating and Air Conditioning

75 Rankin Street, Waterloo, ON, N2V 1W2
(226) 887-3052

Find an HVAC technician or plumber near you:

Proudly serving Waterloo and surrounding areas, Dunn’s expert HVAC technicians and plumbers bring reliable heating, cooling, plumbing and indoor air quality solutions right to your neighbourhood.