Durham Region's Trusted Heating & Cooling Expert
- Based in Oshawa - service from Pickering to Bowmanville
- Expert with Durham’s older homes and new builds
- Backed by decades of hands-on HVAC experience
- Licensed and insured to ensure your safety

Hi, I'm Zack - owner and operator of HVAC ZACK.
With over 15 years in the heating and cooling industry, I’m proud to bring hands-on expertise, meticulous workmanship, and a commitment to fair, honest service to every home I work in across Durham Region.
As a licensed and insured HVAC professional, I specialize in heat pumps, furnaces, air conditioning, tankless water heaters, and more — treating every project like it’s for my own family, because doing right by my clients matters most.
Services
Heating & Cooling Services
Everything you need from heating your house in the winter, cooling it in the summer and making it comfortable in-between!
EXCELLENT Based on 92 reviews Posted on L. DesousaMay 5, 2026Trustindex verifies that the original source of the review is Google. I highly recommend Zack! He is extremely professional, knowledgeable, and genuinely takes the time to walk you through every step of the process. When I was dealing with an issue with my furnace, Zack explained everything clearly and made sure I understood what was happening and how it would be fixed. That level of transparency and care really stood out. It’s not easy to find someone you can truly trust, but Zack is exactly that person. I wouldn’t hesitate to recommend his services to my friends and family, and I’ll definitely be calling him again for any future needs.Posted on Ashley AltonApril 25, 2026Trustindex verifies that the original source of the review is Google. Zach was friendly, professional and very thorough in his assessment of my central AC unit. Highly recommend!Posted on Google UserApril 23, 2026Trustindex verifies that the original source of the review is Google. Zach & his team responded quickly and provided a detailed quote. Install was professional and clean for a BBQ gas line. Would recommend for future projects.Posted on Justin DiraddoApril 22, 2026Trustindex verifies that the original source of the review is Google. Zack came highly recommended by a number of Real Estate colleagues, and I understand why! We needed a time sensitive repair completed on an active listing - Zack squeezed us in and had the repair completed first thing the next morning. Great service and a fair price. We will happily refer him to our network in the future.Posted on Bradley HandApril 15, 2026Trustindex verifies that the original source of the review is Google. Zack did an excellent job helping to fix a Furance challenge for my tenant. I loved the quick responses, flexibility and commitment to do it right. He’s my go too now for Durham region!Posted on Smriti AMarch 17, 2026Trustindex verifies that the original source of the review is Google. We've had Zack and his team by a few time recently. He's always responsive, polite and friendly. He's very knowledgeable and takes the time to explain what's happening and what he's done to resolve the issue. Even after a busy day, he's fit us in and helped us out. Thanks Zack!Posted on Samuel MarmaraMarch 3, 2026Trustindex verifies that the original source of the review is Google. Very honest and his workmanship was amazing.Always was there if a question was needed to be answeredPosted on Robert MarleauFebruary 14, 2026Trustindex verifies that the original source of the review is Google. We recently had a heat pump installed in our garage along with a propane heat blower and we couldn't be happier with the results. The entire process was smooth and start to finish. Zack was knowledgable punctual and took the time. Page explain how everything works and how to get the best performance out of our system. The heat pump keeps the space at a comfortable consistent temperature and a propane heater is a great back up for a really cold days. Insulation was clean and well organized, and I left the workshop spotless when they were done. You can tell they take pride in their work and care about doing the job right. If you're looking to make your garage useable year-round I definitely recommend this set up in this crew. Great. overall experience!Posted on Maria RomanukFebruary 3, 2026Trustindex verifies that the original source of the review is Google. Zack has been reliable, honest and, I recommend his services to anyone. He is professional & I trust him with all his work:)