Best Heating & Air Conditioning / HVAC In Oshawa

“Justin was excellent to work with! Delivered as promised in a quick and efficient timeline. Thank you again Justin!“

“David is an absolute gem of a guy, extremely talented in his trade. His company was hired by my contractor to prepare the HVAC for a renovation which had David working on a number of items. A consummate professional, he made a number of common sense recommendations that I appreciated, not once attempting to "upsell" services that I didn't require. His workmanship was excellent, he kept the jobsite clean, and his costs were reasonable. What more can you ask for? I highly recommend David, and will be calling on Cassar Heating & Air Conditioning again in the future.“

“best customer service out there. they genuinely care about you and tsle care of you like family.Services: A/C system maintenance“

“Mark was the technician who answered our call. He was outstanding !!5+ starsService: Repair HVAC“

“Called them for a repair on my furnace. I decided to just replace the whole unit. Alex was a great had me up and running in 6 hrs from start to finish. thank you.“

“Excellent service by technician Branden! He arrived on time, completely the job in a timely manner; very professional. He also took the time to answer any questions. I would highly recommend this company!“

“Loved the friendly atmosphere Gates came along with when arriving to fix our furnace. If any issues occur again I would love to have him back“