Your One-Stop Comfort Zone

Heating & Cooling Services in Tillsonburg, Ontario

G.C. Lounsbury offers a complete range of heating & cooling services in Tillsonburg, Ontario. We are proud to be your one-stop comfort zone!

woman having heating or cooling problem looking at thermostat

Service With a Smile

Are you suffering because of cooling problems in your home? Our certified technicians will put a smile back on your face. See what they can do for you.

couple looking for answers about heating products on a laptop

The Best Products

Are you in the dark about heating? Want to know more about heaters and how they help your home? Here’s a crash course that you’ll enjoy.

Learn About Heating

professional technician doing maintenance work on an air conditioner

Our History

From its humble beginnings in 1960, our family business has grown into a complete home comfort company. Travel back in time by learning about our history.

About Our History

woman relaxing at home with her heating and cooling needs met

Create a Relaxing Environment

Does the heat make you uncomfortable? Is the cold unbearable? G.C. Lounbury Inc. located in Tillsonburg, ON. We will transform your space into a personal comfort zone so you can enjoy your stay indoors.

Trust our dedicated team of experienced technicians for home heating, air conditioning and water purification systems. We have reliable and efficient products for modern homes and offices.

Whether it’s routine maintenance or emergency 24-hour service, we’ll meet your needs. Our friendly team will be there and on time to give you the satisfaction you deserve.

Heating & Cooling Solutions

For quick solutions to your heating and cooling problems, call us at 519-842-3807 or dial 519-688-5999 for after hours service.

York logo with tagline: It's Time to Get Comfortable

Water Quality Solutions

Water cleans our body and keeps us alive. To have a good supply of clean water free from contaminants and other pollutants, come to G.C. Lounsbury in Tillsonburg, ON. Whether you need hot water for a soothing bath or a water treatment system to get rid of pollutants, we have you covered.

Indoor Air Quality Solutions

Do you have reason to be concerned about your indoor air quality? G.C. Lounsbury is ready to assist! We have air quality solutions for your home or business that will help you breathe easier.

What our Customers Say About us


Such a great company to deal with. They were good to us when we lived inTillsonburg and since we moved to Vienna, they helped us with an installation and most recently with a furnace repair. Quick service. Really responsive. Great value. I wouldn't hesitate to recommend. We dealt with Joey, Jay and Darcy and everybody has been amazing.

– Thorsten Haelssig

These people are simply amazing. Provided quote and stuck to it. Installed new a/c ,new gas line and valves for gas drier and gas stove. Great job clean fast and very proffessional staff. Would HIGHLY recommend to others and will only have these guys to work on all of my concerns.

Mike Pritchard

Was very impressed with customer service! Made it out next day for my air conditioner diagnosis, the staff are very honest and knowledgeable. They were able to provide a very competitive quote and perform the work efficiently within 3 days! 💯 would recommend GC Lounsbury heating and cooling to anybody.

Josh Averink