Best Heating & Air Conditioning / HVAC In Hamilton

“Kyle removed a clog causing water to drip on the floor from my furnace hose today. He was thorough and very polite.“

“Had my furnace motor fail and the tech was direct and shared what it would take to fix it that day. The work was more expensive than other HVAC techs but they did it quickly and professionally.“

“Christian and Cameron came by to do maintenance and cleaning on my 2 Daikin heat pumps. Super professional, courteous and nice guys. Would strongly recommend“

“Punctual, honest, and efficient! Fantastic experience with fixing my furnace! I’ll be a future customer. Thank you!!“

“Our air conditioner died in the middle of a heat wave. We called Lancaster and were told they could have a service tech out that same day. And as promised, the tech... Jason... showed up within a few hours. Since the unit was fairly old, we thought it might be beyond repair and that we might need to buy a new one. But he quickly diagnosed the problem as a faulty part, which he replaced. We were back up and cooling in no time. Very impressed with the quick service and friendly, knowledgeable service tech. Would highly recommend.“

“From my first conversation with Norine to the day of service with Israel and Alex, the team was exceptional. They communicated clearly, answered all my questions, and ensured everything was clean and organized before they left. I highly recommend their services!“

“Bosanac has been my go-to for heating and cooling for over a decade. I’ve always been impressed with their staff, tradespeople, and the owner. Their work is consistently exceptional, and I couldn’t be more satisfied with the service they provide.“

“I was put in touch with Paul after weeks of searching for a tech to inspect my heating oil tank that was due for an inspection. Very responsive , friendly and knowledgeable. I couldn’t even get other contractors to answer their phones or return a call. I’ll be using him for service on my boiler from now on“

“The technicians were on time, did a very thorough installation of our new furnace and AC. The gentlemen were very polite and cleaned any mess they made. A very professional job from start to finish. A+. A huge thank you to Ross for coming to our house and very short notice to determine what needed to be done and setting up a next day installation. Thank you“

“This is the second time we have used them. We were very pleased with their work. Clean, efficient, professional, no surprises. Strongly recommend them !!“

“The HVAC Service responded to my inquiry promptly, standing out as the swiftest among all the professionals I contacted. Their extra courtesy of a follow-up call was a pleasant surprise, highlighting their dedication to customer satisfaction. Their commitment to serving customers exceptionally well shines through. Their service was excellent, and the cost was reasonable. I'll definitely be returning for future business with them.“

“The salesman, Rob, was very knowledgeable about the options for our HVAC. He was very detailed, clear and concise with his approach. He helped us to find the exact heating solution for our home. The price was actually lower and for a better system than the other quotes we got. The install crew was very good. They were professional, did quality work, and left no mess in our home. I would definitely recommend Hamilton Heating and Cooling.“

“We had this company remove our oil furnace and replace it with a Mitsubishi Cold Climate Heat Pump in 2022. We approached JC Indoor because we heard that the Mitsubishi system was the best available in Canada and that it can function all year in our climate. John Ciotti impressed us with his knowledge, experience, and relationship with Mitsubishi. He was very patient as we had to wait over 6 months for Hydro to upgrade our electrical panel. His crew arrived very soon after that was done. They, including John's son and Paul, were very efficient and clearly very experienced. The system has functioned perfectly now in both summer heat and winter cold. It is very quiet, and it has indeed reliably given us clean indoor air.Services: Heating system installation“

“Awesome service! Our A/C was not working, so we called Bazik’s HVAC and they were able to come over quickly to diagnose the situation. Kyle was professional and gave a clear diagnosis and recommendations.“

“Nov 2025 Just had Jordan at Elevate HVAC install a 4 ton /4 inside head air source Heat pump system. Very competitive pricing, fast and courteous service and its running perfectly. love it.“

“My house broke down for my boiler and I called Bullet Proof. They came same day and helped get my equipment running. Thankfully they had the part and everything took less than 2 hours. They were professional with updates on arrival and the cost was reasonable which I appreciated.“

“Knowledgeable and professional, and they gave me a significantly better price than a larger company quoted me for“

“With so many ready to criticize and complain so quickly, and so few prepared to acknowledge tremendous work and quality service, I’d like to post this for Active Air Inc.I was facing a troubling situation a few days ago, where not only was the water heater not functioning properly, but the furnace also. This was tough, facing the weather this week, having children and knowing the essential needs of a household that requires heat and hot water.This is when Active Air Inc. came into my world and I’m thankful for it. Within hours of the issue being reported to the company, tradesman and company representative Zack arrived. He quickly assessed what the issues were and then provided a number of options that were explained clearly and left no doubt in my mind what could be done to resolve this quickly and relatively inexpensively. In my mind, I had created a much worse scenario, as it relates to the time span having no heat and water and overall costs.The strategy to remedy my problem was agreed-upon. The next morning, Zack and a colleague arrived, on-time, and got straight to work. There was a substantial amount of work completed and completed well and promptly. By the early afternoon, I had new equipment, installed professionally and with care, and had hot water and plenty of heat.I can state that working with this company was a joy. I’m thankful Zack was the individual assigned to this project, because he brought confidence, quality customer service and professionalism with a friendly demeanour.I will critique when that is required, but I will always compliment those who deserve it. This was a first class response and a first class job and I recommend this company.Well done Zack and Team at Active Air Inc.Craig P.Dundas. ON“

“Luke was great, communicated clearly, fixed the issues in a timely fashion and kept me in the loop.“

“I have installed 7 heat pumps (water and space heating) through Langton in multiple properties over the last few years. They have been a pleasure to work with. They know heat pumps well, and are very professional. They are easy to get hold of, and respond promptly to any concerns. Highly recommend, especially for heat pumps.“

“Great experience from first call, site visit to quote and installation. Also, by far the best price for quality AC and Furnace and a clean install.“