About Us

HAMCO Heating & Cooling Ltd. Has Provided Top Rated HVAC Services to the Hamilton, Burlington, Oakville & Surrounding Areas Since 1946

We are a third generation, family owned and operated business that offers the highest quality in residential and commercial heating, cooling, and hydronic equipment installations and service.

The family business we run is as much about building new relationships with our customers, as it is about providing fantastic HVAC service experiences in our neighbourhood and surrounding areas. We don’t just work here, we also live here, and have been a part of the community since our patriarch, Lawrence Vasilak, planted his roots in Hamilton over 75 years ago.

Lawrence believed that if you provided customers with both good value that meets their needs and a solid foundation of trust, dependability, service, quality, and responsiveness, that those customers would be lifelong ones. His proud passion for high quality service has been passed down to his family and employees, ensuring that his legacy of integrity, and commitment to values, is never lost.

Today, the business environment has changed, as has the pace at which the world moves, however, at HAMCO we will deliver on our commitment to you. We pride ourselves on following the family values that have become the HAMCO standard set by Lawrence Vasilak, and carrying that reputation to every service call, sale, and installation we perform.

We continue to be the go-to residential and commercial HVAC experts in the Hamilton, Burlington, Oakville, and surrounding area. We look forward to serving you and your heating, cooling, or hydronic needs.

Call us today for more information on our service and maintenance plans, plus find out what amazing products we carry that will create the most comfortable space to be in.

Yours in HVAC,

John, Tom, & the HAMCO Family.

HAMCO Heating & Cooling Ltd.
4.8
Based on 585 reviews
Emily Ferko
Emily Ferko
19:15 27 Aug 25
We had an excellent experience working with HamCo for our new heat pump installation. From the very beginning, Andrew guided us through every step of the process — from choosing the right unit for our home (we went with a Daikin heat pump/furnace combo) to walking us through budget details and keeping everything honest and transparent. When we decided to also add a hot water heat pump, Andrew made that seamless too.He was incredible with the paperwork for the Ontario government rebates, making sure we had everything in order for both the heat pump and water heater. The installation itself was smooth and even finished a full day ahead of schedule. The team removed and returned our rental hot water heater, handled the refund process for us, and kept the house spotless throughout. Every installer we met was polite, professional, and clearly knew their stuff.It’s been about a month since the install, and everything looks fantastic and is working beautifully. We couldn’t be happier with the results and highly recommend HamCo to anyone considering a heat pump.
Sarah Najbor
Sarah Najbor
14:54 15 Aug 25
HAMCO was amazing! They recently installed a new air conditioner and water heater for us and the process was quick and easy from start to finish.Thank you to Bill and the team!
Ray Greenspon
Ray Greenspon
14:27 14 Aug 25
Veronica and Shamar did a superb job for us installing a Daiken ductless heatpump in our 14th floor condo. They laid out drop sheets and were in and out in less time than we anticipated. We had two issues with the installation as they were working and Veronica made on the fly adjustments which made things perfect for us. Best of all the unit runs quietly and is keeping us c-o-o-l. Thanks. Shelly and Ray
Ron Hatcher
Ron Hatcher
17:46 04 Aug 25
Hamco installed a York air conditioner in June 2025. Excellent job by Veronica and Neil. Bill in sales also very helpful. Will be calling about a water heater soon
Glenn Pfab
Glenn Pfab
22:15 23 Jun 25
Stefan show up on time , diagnosed the problem, and quickly ran out to get the part, installed it and the air conditioner was up and running in under an hour! It was 48C and he solved the problem....thanks so much Stefan and Hamco!
Christopher Furtado
Christopher Furtado
14:26 27 May 25
Recently called Hamco to install an ecobee at my parent’s house. Christian came out and installed the new smart thermostat and had it up and running within 30 mins! Christian was very professional and was able to help me understand the basic functions of the smart thermostat.
Osman Osman
Osman Osman
16:43 15 May 25
They are very professional and helped me cancel an energy contract. They did an amazing job installing my equipment even help fix a circulation issue that I’ve been having for years. Got the bill credits that was promised within a week.
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