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Delivering the right HVAC service St. Catharines. Heating, air conditioner, plumber & more to the Niagara Region.

Reliance™ is the first choice for homeowners in St. Catharines and the Niagara Region, whether you’re looking for furnace repair, air conditioner repair, water heater or need residential plumbing services. In fact, we’re committed to delivering you the right home comfort solution, no matter where you live or what your budget is, with the best customer experience anywhere. We offer expertise in furnaces and air conditioning and we’re here to help!

Products & Services

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Furnace savings & rebates with a free Google Nest!

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Air Conditioner Guide

A helpful guide for everything to know about your home’s AC needs.

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Air Conditioner FAQs

All your frequently asked questions about air conditioning answered.

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All Air Conditioner Resources

Learn more about air conditioning to help you make the right decisions.

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Furnace savings & rebates with a free Google Nest!

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Furnace Guide

A helpful guide for everything you need to know about your home’s heating needs.

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Furnace FAQs

All your frequently asked questions about air conditioning answered.

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Furnace Learning Resources

Learn more about furnaces to help you make the right decisions.

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Reliance plumber talking to homeowner and her daughter

Plumbing Guide

A helpful guide for everything you need to know about your home’s plumbing.

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Plumbing FAQs

All your frequently asked questions about your home’s plumbing answered.

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All Plumbing Resources

Learn more about plumbing to help you make the right decisions.

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Benefits of a Water Softener

Are you experiencing the uncomfortable effects of hard water in your home? A water softener can help.

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Water Purification FAQs

All your frequently asked questions about water purification answered.

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All Water Purification Resources

Learn more about water purification to help you make the right decisions.

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Water Heater FAQs

All your frequently asked questions about water heaters answered.

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Benefits of a Tankless Water Heater

Thinking about going tankless? Learn more about the benefits of on-demand water heaters?

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All Water Heater Resources

Learn more about water heaters to help you make the right decisions.

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Brands We Carry

  • Logo - Amana
  • Logo - Carrier
  • Logo - Nest
  • Logo - Goodman
  • Logo - Rinnai
  • Logo - SmartAir
  • Logo - Bradford White
  • Logo - Viessman

Local Service Areas

Reliance Home Comfort
113 Cushman Rd Unit 60
St. Catharines, ON
L2M 6S9

(905) 227-5669

ESA License #7012884

The Reliance Team Services the following areas:

  • Port Dalhousie

  • Glenridge

  • Port Weller

  • Merritton

  • Western Hill

  • Louth

  • Haig

  • Secord Woods

  • Grantham

  • Queenston

  • Grapeview

  • Lakeport

St Catharines

  4.8/5

707 Reviews

Joe D

We had Nevon come today to work on some plumbing issues. He practiced very safe protocol re: Covid 19. He was very conscientious, considerate, professional and excellent work. Would highly recommend him if you need a plumber.

Kelly P

The plumber sent to our house to install our water softener was thorough, hard working and did an amazing job. I couldn’t be happier with the service we received. He was thoughtful of the noise as we have five small children. I highly recommend him.

Ricardo R

I called, to get a technician to repair my parent’s water Purifying system, they (Rocco P) and (keelam) did not just repaired it, but walked us trough all the reasons why this water purification system, broke down. I definitely recommend them as they are friendly and profesionals. Thanks, guys!

Tom S

The repair to my water heater was done quickly and professionally. The technician was very pleasant and explained the repair thoroughly and left the area as clean as he found it . I am extremely pleased with this service.

Matt M

My water heater stopped working today. It's a gas heater but doesn't have a pilot. The code said to contact a technician and since it's a rental I knew it wouldn't cost me anything. The two gentlemen that came were very friendly and professional. They fixed my water heater in about 15 minutes.

Sabrina R

The installers that came to my home, Matt ID #2843 and Curtis ID#3963 were outstanding! The were clean, arrived on time, worked great as a team and had my furnace and A/C installed without any problems. They set up the thermostat online for me and showed me how easy it is to use the app. They also cleaned up their work area. Matt and Curtis , thank you! 10/10!

Airi I

The team who replaced our noisy furnace was very professional and helpful. They did a great job setting everything up efficiently. Very clean work and good instructions. Scott, Kyle and Fred did awesome job! Thank you for making our house nice and quiet.

Lise L

Just had the most wonderful experience with two of your employees Matt 2842 and curtis 3963.They were very courteous and very professional and ensured that we fully understood how our new furnace worked ,humidifier and water heater.I would highly recommend them and were completely satisfied with your service

Hugh M

A great job by a great crew (Rob, Gage & Sam). Feel very fortunate that my new Air Conditioner & Furnace were installed by true professionals. It's a credit to Reliance that they have such good people working for them. Knowing my home will be providing me with ideal comfort for all seasons for many years to come gives me such peace of mind. Thanks to one & all at Reliance for a great job & experience.

Megan F

Dan was a great home comfort advisor. He was extremely friendly and personable. He took time to go through all of our options for replacing our furnace and air conditioner, separately and together and made sure to answer all of our questions.

Here’s why St. Catharines Homeowners Choose Reliance

  • Live customer support 24/7/365

  • Next day or we pay $500 Installation

  • Ready to complete the repairs on the first call

  • Over 45,000+ 5 star Google Reviews Nationally

  • 50+ years of experience

Meet our St. Catharines Team


At Reliance we take pride in educating our customers in how to check your home for leaky faucets, sinks or showers. Extra water costs from pipe leaks can unnecessarily increase water bill costs. Sometimes a small leak from a bathtub can be a sign that a larger problem might exist behind tiles or bathroom walls. By inspecting your shower, bathtub and sinks regularly for unusual colours, noises or odours you can detect a minor leak and get it repaired before it becomes a costly problem.

Calling us for a new air conditioner can also be delayed if you follow general energy-efficient practices like planting tall bushes and trees near the house, using your oven less often, turning off lights when you leave a room, and ensuring your window blinds and curtains are closed during times you aren’t at home.

At the beginning of the winter months, ensure your thermostat is set to heating from cooling, check that your furnace switch is turned on, and check your air vents to make sure that the air passages are clear.
One reason is that we’re committed to St. Catharines and the surrounding area – because it’s our home, too, so every member of our team understands the unique needs that come with the humid climates created our proximity to Lake Ontario, Lake Erie and the Niagara Escarpment. Rest assured, we’ll help you find home comfort solutions that keep you warm in the winter and cool in the summer – and comfortable all year long.
You can also be completely sure you’re in good hands with our friendly and knowledgeable Home Comfort Advisors, specially trained to help determine the best equipment for your home, whether it’s a furnace, air conditioner or water heater. They’ll outline all your options and provide the knowledge you need to make the right decision.

Finally, Reliance Home Comfort™ offers a range of brand-name furnaces and air conditioners, including our own SmartAir™ line, as well as Carrier®, Goodman® and Amana®. Not sure what’s best for you? Our team in St. Catharines is here to help.

We work with top name brands including: SmartAir™Amana®Carrier®Goodman®, Rheem®Rinnai®Viessmann®Weil-Mclain®Bosch®, and Nest®.

Questions about your furnace, AC, or plumbing?

You can reach us live 24 hours a day, 7 days a week, 365 days a year.

Mike Wiggan HCA

Home Comfort Advisor

Mike Wiggan

What I Love most about being an HCA is the interaction I have every day with homeowners. I get a gratifying feeling helping them find solutions to their concerns in regard to their home comfort and safety. Following up with the customer and seeing the joy it brings to their lives after doing business with us is the icing on the cake. What I Love about working with Reliance is what they promise is what they deliver, and they are willing to go about and beyond for customer satisfaction.

Meet your Local General Manager

Community Involvement

Dedicated to service in your home – and our communities

Video Thumbnail
Reliance Habitat for Humanity Partnership

Reliance team members have rolled up their sleeves, hammered nails and painted walls, so that deserving families in our area can afford a comfortable home. Watch the video to see Reliance team members at work for Habitat for Humanity.

Logo - RAFT Empowering our Youth
The RAFT

We’re proud to support this Niagara Resource Service for Youth that helps kids living on the street and those at risk learn skills for leading healthy productive lives. In 2016, Reliance donated $10,000 to the cause and made available team members to volunteer anytime they needed our help.

Niagara Ice Dogs logo
Niagara Ice Dogs

Reliance sponsors the local Ontario Hockey League team and cheers them on as they play to win in the newly built Meridian Centre.