David Cassar and his TSSA-certified team provide expert heat pump services throughout Durham Region, from Oshawa to Newcastle. Whether you need emergency repairs, new installations, or routine maintenance, we deliver reliable service that keeps your home comfortable year-round.
New heat pump installations for Durham Region homes and businesses. We help you choose the right system for your property size and heating needs, ensuring maximum efficiency and comfort in our Ontario climate.
Fast heat pump repairs throughout Durham Region. From refrigerant leaks to compressor issues, we diagnose and fix problems quickly. Emergency service available for those cold Ontario nights when your heat pump stops working.
When your existing heat pump reaches end-of-life, we provide complete replacement service. We’ll help Durham Region homeowners upgrade to newer, more efficient models that handle our Canadian winters better.
Regular heat pump maintenance keeps your system running efficiently and prevents costly breakdowns. Our tune-ups include cleaning coils, checking refrigerant levels, and ensuring all components are ready for Ontario’s demanding seasons.
Upgrade older heat pumps to modern high-efficiency models eligible for rebates. We help Durham Region homeowners take advantage of government incentives while reducing energy bills and improving home comfort.
24/7 emergency heat pump repairs throughout Durham Region. When your heat pump fails during extreme weather, call Cassar for same-day service. We understand that heating emergencies can’t wait in Ontario’s harsh climate.
Durham Region homeowners choose Cassar because we understand the unique heating challenges of our area. From the lakefront communities of Whitby to the rural properties around Newcastle, we deliver heat pump solutions that work in our climate.
Most heat pumps in Ontario last 12-16 years with proper maintenance, though cold-climate models designed for our winters often perform better over their lifespan. The key factor is choosing a heat pump rated for our temperature extremes — units that struggle in sub-zero weather tend to fail sooner due to overwork.
Regular annual maintenance significantly extends heat pump life. We see well-maintained units in Durham Region lasting 18-20 years, while neglected systems often need replacement around year 10. The harsh freeze-thaw cycles we experience from Lake Ontario’s influence make maintenance even more critical here.
Signs your heat pump is nearing end-of-life include frequent repairs, rising energy bills, and inability to maintain comfortable temperatures during cold snaps. If your unit is over 12 years old and needing major repairs, replacement often makes more financial sense.
Heat pump installation costs in Durham Region typically range from $4,500-$12,000 depending on system size, efficiency rating, and installation complexity. Ductless mini-splits start around $3,500 for single zones, while whole-home ducted systems average $6,000-$9,000 for most residential properties.
Cold-climate heat pumps cost more upfront but are essential for our Ontario winters. These units work efficiently down to -25°C, making them suitable for Durham Region’s weather patterns. Standard heat pumps that lose efficiency below -10°C aren’t worth installing here.
Factor in available rebates — Ontario’s Enbridge rebates can reduce costs by $1,000-$6,500 depending on efficiency ratings. We help homeowners navigate rebate programs and choose systems that qualify for maximum incentives while meeting their heating needs.
Durham Region’s housing stock presents unique considerations for heat pump installation. Many older homes in Oshawa and Whitby have aging ductwork that may need upgrading for optimal heat pump performance. Ranch-style homes common in Pickering and Ajax are ideal for heat pump installations due to single-level distribution.
Lakefront properties in communities like Port Darlington face additional humidity challenges that modern heat pumps handle well. The moderating effect of Lake Ontario means slightly milder winters near the shore, allowing standard cold-climate units to perform adequately in these areas.
Ice buildup beyond normal frost is a common issue during Durham Region’s freeze-thaw cycles. While light frost is normal, thick ice coating the outdoor unit indicates defrost cycle problems that need professional attention. Don’t attempt to chip ice off — this can damage sensitive components.
Short cycling (frequent on-off cycling) often occurs when heat pumps struggle with Ontario’s temperature swings. This wastes energy and stresses components. Unusual noises, especially grinding or squealing from the outdoor unit, typically indicate bearing problems that worsen quickly in cold weather.
Rising energy bills without increased usage suggest declining efficiency. Heat pumps should maintain consistent performance — if your bills spike during mild weather, the system likely needs service or refrigerant attention.
Modern cold-climate heat pumps maintain efficiency down to -25°C, making them suitable for Durham Region’s winters. However, backup heating (usually electric resistance) kicks in during extreme cold snaps below -20°C. This is normal operation, not a system failure.
Snow accumulation around outdoor units is common in our area. Keep a 2-foot clearance around the unit and gently brush off snow buildup. Never use sharp tools or pour hot water on the unit, as thermal shock can crack components.
Heat pump performance naturally decreases as outdoor temperatures drop. A properly sized cold-climate unit should provide 100% of your heating needs down to around -15°C, then rely on backup heat for the coldest days. This hybrid approach is both efficient and reliable for Ontario winters.
Proper electrical connections are critical for heat pump safety. Ontario’s electrical code requires dedicated circuits for heat pump installations, and TSSA-certified technicians ensure all connections meet safety standards. DIY electrical work on heat pumps is dangerous and illegal.
Refrigerant handling requires specialized certification. Heat pumps use refrigerants that can cause frostbite on contact and environmental damage if released. Only licensed technicians should service refrigerant systems — amateur repairs often cause more expensive damage.
Energy efficiency depends on proper sizing and installation. An oversized heat pump cycles frequently and wastes energy, while undersized units run constantly and struggle in cold weather. Professional load calculations ensure optimal sizing for your specific home and local climate conditions.
Before calling for service, check these common issues that homeowners can resolve themselves.
Heat pumps require the thermostat to be set to Heat — and the temperature must be above what the room currently is. Also confirm the system mode isn’t set to Emergency Heat unless needed.
Heat pumps have two circuit breakers — one for the air handler inside and one for the outdoor unit. Both must be on.
Some frost on the outdoor unit is normal in winter. A unit completely encased in ice is not — this indicates a defrost issue. Don’t chip at it; call Cassar.
A blocked filter forces the heat pump to work harder and can trigger safety shutoffs. Replace it and see if performance improves.
If your heat pump is blowing cool air in heating mode, the reversing valve may be stuck or the thermostat may be sending the wrong signal. This needs a technician.
If none of the above restore your heat pump, it’s time for a licensed technician. David and his crew serve all of Durham Region and respond fast.
“David installed a cold-climate heat pump in our Courtice home last fall. It’s been working perfectly through this winter, even during those -20°C cold snaps we had in January. Very professional installation and great follow-up service.”
“Had an emergency heat pump repair on a Sunday morning in Bowmanville. David came out same day and got our heating working again quickly. Honest pricing and excellent work — highly recommend for anyone in Durham Region.”
“Replaced our old furnace with a new heat pump system in Ajax. David explained all our options and helped us get the Enbridge rebate. The installation was clean and professional, and our energy bills have dropped significantly.”
Cassar provides professional heat pump services throughout Durham Region and surrounding communities.
Same-day service available. TSSA certified. Honest pricing. Call or book online.
