Skip to content
FeaturedVerifiedHVAC Companies in Oshawa, Ontario

Reliance Heating, Air Conditioning & Plumbing

Featured in Oshawa Today 4.80 (7,204 reviews)(866) 529-8514

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.

Listing details

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

Don Forrest

Owen installed our reverse osmosis system today. The install went without a hitch. He brought everything with him the first time and completed the job accurately and neatly. He then thoroughly explained the system and that we will be receiving filters from Reliance at the appropriate time. He explained the flushing system and we are doing that now. He has a great attitude and we conversed on many subjects while he was here. He left our kitchen the way he found it. I would.let work in my house anytime. Thank you, Owen! Don and Madeleine. 312 Sail Vista Drive, Bobcaygeon, K0M 1A0.
View full reviewShow less

MJL

Our hot water tank rental went for a crap late Sunday evening. Called Reliance and they had a technician here Monday at 12:30pm. Kyle was awesome! He told me how long it would take to remove the old tank out and to have the new one installed. He made sure everything was in operating order before packing up. He was very informative and answered any questions I had. He was very thorough and made sure everything was removed when completed. Thank you Kyle for being a pleasure to deal with.
View full reviewShow less

Lisa Todman

My service from Kirsan was fantastic! He was so kind and understanding. He saw what the problem was right away and it was a quick fix. He explained everything and showed me the issue. Then once every everything was fixed he did a system check to make sure all was working well. I now have peace of mind. Thank you so much again, Kirsan.
View full reviewShow less

Write a Review

Share your experience with this business. Reviews are moderated before they appear publicly.

We'll email you a link to confirm your review. It's only sent in once you click it.

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.