About HAMCO | Serving the Halton Region Since 1946

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.

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HAMCO Heating & Cooling Ltd.

4.8

Based on 619 reviews

Rick Naylor

17:08 15 Jan 26

We recently connected with Hamco to inspect our boiler. We discovered serious CO2 issues and required immediate support given the cold January weather. Najim gave us a quote for a new condo boiler/ water heater, providing a competitive quote and arranging for immediate installation. Adam F and Shamar arrived the next day to take care of the challenging installation. After 10 hours of effort they left us with a warm, spotless home. They were highly skilled, efficient and courteous. We are VERY impressed with the entire Hamco team and highly recommend them.

Amjad Junaid

15:42 30 Dec 25

We had a new furnace and A/C unit installed by Hamco 7 years ago. We get both units serviced annually by Hamco. The technicians have always been very friendly, courteous, and professional. This year, there was a leak in the water line leading to the humidifier on the furnace. Hamco advised me that this was not covered by the furnace warranty. Regardless, they agreed to fix the problem without charge. Derek was great and he fixed the problem quickly and efficiently.

Bobbie Smith

19:03 16 Dec 25

We just had a second furnace installed through Hamco. The AC will be installed on Thursday. Veronica and Victor arrived to our home as promised the day before by Steve, the tech who diagnosed our 14 year old furnace needed replacement. So appreciative of the service. I would recommend Hamco to anyone who wishes to experience great customer service and workmanship.

Phil Botham

20:30 08 Dec 25

Great techs all around.Curtious and experienced without all the upselling.;). Definitely worth having Hamco for installs and maintenance.Tnxs Stefan & Derek.....pb Dundas

Elliott Oomen-Hurst

18:33 03 Dec 25

HAMCO was able to schedule an install for my water heater within a week's time and the work was done very fast and they cleaned up well. I'm very happy to have had HAMCO replace the Reliance water heater rental in my house and I will be seeking their services in the future for other heating/cooling work if I need it. They were also very flexible about hanging on to the rental unit and returning it for me, which I appreciate very much.

mike m

19:38 01 Dec 25

Thanks very much for a great furnace check up today Cameron, Monday Dec 1,2025Thanks Mike for a great furnace tune up today, Hamco is a trusted name to me for installation and maintenance

Cathy Sellens

19:26 14 Oct 25

We had Hamco supply and install a new residential boiler and indirect water heater at the end of September and could not be more pleased with the result. Jordan, the estimator, patiently explained our equipment options, provided references for work done in our neighbourhood, and responded promptly to further queries. The price he quoted was far below that of other firms. As residential jobs go, this was a large one and a crew of four was here for two long days getting it done. Under crew leader Justin’s management, the job went very well and any questions of ours were addressed immediately. Clean-up at the end of the job was well done and all scrap (two old boilers, a water heater tank, piping) was removed. Our home was left in excellent condition. With this review, we want to thank Hamco for a job well done, and wish to encourage potential customers to hire them. We would use them again without hesitation.

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

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

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

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

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

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

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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