Best Heating & Air Conditioning / HVAC In Thornhill

“John came the next day from us calling and let us know we needed a new water heater. He replaced it the same day. John is very friendly and does amazing work. We will be using him for future work and will recommend him. Thank you“

“Theyve done couple-new build houses for us , they were always on time , with all professionalism and great pricing .“

“We went to Design Air on the recommendation of a neighbour. After numerous other companies either just ghosted us after the first visit or could not find a simple way to deal with replacing our furnace and A/C these guys came in and were not fussed in any way by the job. They quoted quickly and fairly and were very responsive. Their installation team was the nicest group of service providers I have ever had in my house. Very old school customer service. The did everything they said they would do, on time and as -quoted, required zero micromanagement and left no trace other than a brand new furnace and AC that is working just fine.“

“Shawn and his team are great. They are our main Fireplace supplier for the past 7 years.“

“I just want to share my appreciation with the company's mgt.: was very helpful and was able to install my water heater even on a stat. holiday.Thanks again:)“

“David and his technicians installed my furnace in 2017 and my expereince dealing with him was great, excellent service and professionalism. So recently when I needed to get my mothers Ac replaced, I called David and he delivered great service and price once again.“