Dunn Heating and Air Conditioning
Dunn Heating and Air Conditioning, based in Waterloo, handles furnace, boiler, heat pump and air conditioning work, plus sump pump and basement waterproofing jobs, across the Waterloo Region around the clock.
What they do
Dunn Heating and Air Conditioning, a Waterloo business operating since 1973, installs and repairs furnaces, boilers, heat pumps and air conditioners, and also works on ductless mini-splits and water heaters. Its heating and cooling work covers furnace and heat pump installation, servicing, and repairs. For basements, the firm installs sump pumps and backup sump pumps, carries out basement waterproofing, and handles sewer backups and drain cleaning. Ejector pump replacement is also offered. The company is open around the clock, every day, and provides emergency service. Financing is available for new equipment. Its service area includes Waterloo, Kitchener, Cambridge and Guelph.
- Sump pumps
- Furnace repairs and installs
- Basement waterproofing
- Boiler service
- Sewer backup prevention
- Heat pumps
Listed under Basement flooding and sewer backup, Heating and cooling emergencies
Where they work
What we checked
Checked 12 Nov 2026, from public sources.
Not yet verified. We haven’t contacted this business yet. Ask for a written quote before work starts.
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