Reliance Heating, Air Conditioning & Plumbing
Reliance Heating, Air Conditioning & Plumbing provides air conditioning, furnace, water heater and plumbing services in Durham. It has provided home-comfort solutions to Oshawa, Whitby, Ajax and surrounding regions for more than 60 years.
Business Highlights
- Its furnace technicians are licensed.
- Its electrical team includes licensed electricians.
- Plumbing repairs include one-year parts-and-labour warranty coverage.
- Its electrical service carries a full service guarantee.
Service Area
Durham, Ajax, Oshawa, Pickering, Whitby, Uxbridge, Clarington, Brock, Newcastle, Bowmanville, Port Perry and Claremont.
Featured on ProsGrade. Reliance Heating, Air Conditioning & Plumbing is one of 11 HVAC companies ProsGrade lists in Oshawa, Ontario.
9 services listed, including Air conditioning, Furnaces and Heat pumps. Open 24 hours, 7 days a week. Rated 4.8 from 7,204 reviews.
- Verified listing details
- Service information
- Customer review signals
- Photo gallery
- Public contact information
- Published local profile
How This Business Compares
How Reliance Heating, Air Conditioning & Plumbing compares with the other 10 HVAC companies on ProsGrade in Oshawa, using public Google ratings and review counts.
- Ranks in the top half of the 11 Oshawa HVAC companies on ProsGrade by Google rating and review volume.
- Has more Google reviews (7,204) than 9 of the 10 other Oshawa HVAC companies on ProsGrade.
- One of 11 Oshawa HVAC companies on ProsGrade rated 4.7 or higher from at least 10 reviews.
Trust Signals
Listed as Open 24 hours
Services Covered
9 services- Air conditioningCentral, ductless or mini-split, and packaged systems.
- FurnacesInstallation, repair and maintenance.
- Heat pumpsRent or buy options.
- Water heatersTank or tankless; gas or electric; 40-, 50-, 60- or 75-gallon options.
- PlumbingEmergency and non-emergency repairs.
- Water purificationWater softeners, iron and chlorine filters, and reverse osmosis systems.
- Indoor air qualityHEPA air filters, HRVs and ERVs, and UV air purification systems.
- Electrical servicesPanel and service upgrades, including 100-, 200- and 400-amp service upgrades.
- Smart home solutionsNest Hub, Nest Cam Outdoor, Nest x Yale Lock and Nest Doorbell.
Reviews
What customers say
Several customers praise technicians for explaining the work and checking that systems were operating properly; one customer also described a reverse-osmosis installation completed neatly and accurately. Service problems also appear: one customer reported a noisier replacement water heater, banging pipes and a new leak. Another reported a missed appointment for a furnace problem, no diagnosis at a later visit and a diagnostic fee expected despite no solution.
Customer Reviews
MJL
Lisa Todman
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Frequently Asked Questions
How does Reliance set plumbing repair estimates?
A plumber assesses the job and provides an upfront estimate before work begins.
When does Reliance waive the electrical assessment fee?
The company waives the fee when a customer proceeds with the quoted electrical service or repair.








