Cassar Heating & Air Conditioning supports residential customers with heating and cooling solutions focused on clear communication and careful workmanship. Common projects include furnace and AC installs, troubleshooting and repairs, and gas line services for appliances.
Homeowners remark on thoughtful troubleshooting, reliable arrival times, and tidy workmanship. Jobs are explained upfront and completed with attention to detail. Service is available across Durham Region with convenient scheduling.
Oshawa-based with coverage across Durham Region: Whitby, Ajax, Pickering, Clarington, Bowmanville, Port Perry, and Uxbridge.
Furnace and AC installation, repairs, and tune-ups; gas line installation and appliance hookups (stoves, BBQs); thermostat replacement; seasonal maintenance and safety checks.
Customer feedback consistently mentions punctuality, clear communication, and thorough diagnostics. Many note tidy work areas and careful explanations before and after service. Reviews also highlight successful gas stove hookups, furnace replacements, and gas line projects. Overall sentiment reflects reliable service and strong workmanship.
Great experience with David and team. From his patience in diagnosing the issue (thoughtful and thorough) to eventually replacing the furnace, the approach was top notch. Dave and Alex made the install as painless and seamless as possible. Highly recommended Cassar as the only choice for heating and air service.
Excellent service from Dave , friendly and very reliable. He installed my gas stove and did a great job. Thanks very much for your good work.
David did an outstanding job hooking up the gas to our new stove, to top it off he's courteous and punctual, will definitely be recommending him to friends and family
We had an excellent experience with David for our HVAC service! He was incredibly professional, arrived on time, and left the work area spotless. His attention to detail was impressive—he thoroughly explained the work being done and ensured everything was running perfectly before he left. It's clear he takes pride in his work. Highly recommend David for anyone needing reliable and top-notch HVAC service!
David Cassar is professional and hard working. We have worked with him multiple times over the years. He did the new install of the furnace at the old house before we moved, relocated the AC unit and this week he got our gas line out to the new BBQ fast and it looks great. Couldn't wait to start barbaquing!! Thanks so much.He also worked safely for himself and my family during these times, using gloves, mask and cleaning properly after the job was complete.
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