Skip to content
Business ProfileHVAC Companies in Ottawa, Ontario

Reliance Holmes Ottawa Heating, Air Conditioning & Plumbing

Listed in Ottawa 8,555 reviews

Reliance Holmes Ottawa Heating, Air Conditioning & Plumbing

Reliance Holmes Heating and Cooling provides home-comfort services in Ottawa and nearby communities, including Nepean and Kanata. It has provided home-comfort solutions to the Ottawa region for more than 60 years.

Featured HVAC Companies in Your Area

Compare a few featured businesses in this area.

Business Highlights
  • Reliance lists licensed electricians for residential electrical work.
  • Reliance says its electrical service is fully guaranteed.
  • Reliance says plumbing repairs include a one-year parts and labour warranty.
  • Reliance says its smart-home bundles include installation by Nest Pro Certified Installers.

Service Area

Ottawa and surrounding communities, including Nepean and Kanata.

Active Business Listing

Reliance Holmes Ottawa Heating, Air Conditioning & Plumbing is one of 12 HVAC companies ProsGrade lists in Ottawa, Ontario.

Active
Public local listing
Listing details

11 services listed, including Air conditioning installation, repair and maintenance, Furnaces and boilers and Heat pumps. Open 24 hours, 7 days a week. 8,555 reviews.

  • Verified listing details
  • Service information
  • Customer review signals
  • Photo gallery
  • Public contact information
  • Published local profile

How This Business Compares

How Reliance Holmes Ottawa Heating, Air Conditioning & Plumbing compares with the other 11 HVAC companies on ProsGrade in Ottawa, using public Google ratings and review counts.

  • Has the most Google reviews (8,555) of the 12 Ottawa HVAC companies on ProsGrade.

Trust Signals

Open 24 hours, 7 days a week for service requests.

Services Covered

11 services
  • Air conditioning installation, repair and maintenanceCentral, ductless/mini-split and packaged systems
  • Furnaces and boilersFurnace installation, repair and maintenance; boiler rental or purchase
  • Heat pumps
  • Water heatersTank and tankless models
  • Plumbing repairsEmergency and non-emergency service
  • Water purificationWater softeners, filters and reverse osmosis
  • Indoor air purificationHEPA filters and UV air-purification systems
  • Electrical servicesRepairs, upgrades and installations
  • Home standby generator installation
  • Smart home solutionsNest Learning Thermostat, Nest Hub, Nest Cam Outdoor, Nest x Yale Lock and Nest Doorbell
  • EV chargersLevel 2 stations with installation and service

Reviews

What customers say

Recent customers commend technicians for professional, courteous service and clear explanations; one also praised an electrical technician's careful troubleshooting that restored power. One water-heater customer said a same-day check identified a needed adjustment and included disinfection after hot water developed an odour; a replacement connector was ordered for later fitting. Another appreciated a next-day visit but said a mixing-valve repair would be out of pocket and Reliance's quote was significantly higher than their usual plumber's.

Customer Reviews

Prajith Pillai

I would like to share my appreciation for the excellent service provided by Mr. Chris from Reliance who visited my home yesterday to resolve a power issue in my living room. The previous night we experienced a power failure in the living room, and I was quite concerned about what might be causing the problem. Mr. Chris arrived promptly and was extremely professional, courteous, and friendly. What impressed me most was his efficiency and expertise. He carefully checked the electrical system, quickly identified the root cause of the issue, and within minutes he was able to restore the power. It was clear that he is very knowledgeable and experienced in his work. His calm approach, attention to detail, and willingness to explain the issue gave me a lot of confidence. I truly appreciate the excellent service and professionalism demonstrated by Mr. Chris. Thank you for the outstanding support. I highly recommend his service to anyone who needs reliable and efficient electrical work.
View full reviewShow less

Joshua Melendez

Scheduling the repair was quick and easy through the website. I was able to have someone over the next day to look at the water heater. The Technician assigned (Johann) was great! Him and his partner were very professional. They called to let me know when they were coming and were great at communicating the issue at hand. Their service was excellent and I would highly recommend it.
View full reviewShow less

Lesley Zed

We had a new Relliance water heater installed a couple of months ago. My daughter recently noticed that the hot water had a certain odour so we called for a checkup. Johan came the same day and figured out that an adjustment was needed and a disinfecting done to be sure. He ordered a new connector and it will be fixed very soon. Johan was very knowledgeable, polite and thoughtful in his work. Thank you Relliance for being here so quickly. The decision to rent was the very best choice for us.????
View full reviewShow less

Christopher Oakes

Technician Ron – 5/5 Stars I purchased my home with a rental hot water tank. I’ve never been a huge fan of the monthly fees, but this week we had an issue where we couldn’t get hot water throughout the house. I was actually interested to see how the process would go since I’m paying for this service. I called Reliance at 3:00 PM and they were able to send a technician the next day at 10:30 AM. We were without hot water for less than 24 hours, which was appreciated. The technician, Ron, was truly great. He made all the difference — he educated me on what was wrong and helped partially fix the issue so we could get by for now. Ironically, the issue turned out to be the mixing valve that was installed when the hot water tank was originally put in, before I even owned the home. Since the problem was with the mixing valve and not the tank itself, I was told I would have to pay out of pocket to have it fixed. The quote was significantly higher than my go-to plumber — for a $100 part from my plumber, Reliance wanted to charge $600 for parts and labour. Because of that, I’ll likely have my own plumber handle the repair for a fraction of the price, or possibly do it myself. I’m thankful for the response time and very thankful for Ron — he’s an excellent technician. That said, it’s frustrating to pay a monthly fee for a service that couldn’t fully fix the problem the same day and then be charged a premium to repair a part that Reliance originally installed. This is especially frustrating considering I never chose this rental — it came with the home I purchased. Being without hot water is tough, especially with young kids. I’m grateful we found a temporary fix for now. I would give more stars overall if the service was faster, the call centre was easier to understand, and the faulty part was covered. Thank you for sending such a great employee, but the overall level of service needs improvement. Charging an extra $600 could easily cost you a customer, especially when we already pay $30 per month for this service.
View full reviewShow less

Danièle Mayoda

Ador was absolutely incredible from start to finish. His level of expertise and attention to detail truly set him apart. He is a true perfectionist who takes great pride in his work, and it shows in every aspect of the job he completed. Everything was done with precision, care, and professionalism, far beyond my expectations. In addition to his outstanding skills, Ador was extremely friendly, polite, and approachable. He took the time to explain things clearly, answered all my questions patiently, and made the entire experience very pleasant and stress-free. Once the work was completed, he left the place impeccably clean and well organized, which I greatly appreciated. I would deeply and confidently recommend Ador to anyone looking for high-quality work done by someone who truly cares about excellence and customer satisfaction. Thank you so much for such a fantastic job!
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 price electrical repairs?

Electrical repair pricing is upfront, with no hourly charges.

How does Reliance estimate plumbing repairs?

Reliance says a licensed plumber assesses the job and provides an upfront estimate before work begins.

Can Reliance book electrical appointments on weekends?

Electrical appointment booking includes weekends and holidays.