Durham Region’s rapid growth over the past decade has put heat pumps at the top of the list for homeowners in new Whitby subdivisions and older Oshawa bungalows alike, and David handles both ends of that spectrum every week. He covers every community across Durham Region and picks up same-day calls for repairs when your system stops doing what it should.
David handles every stage of heat pump ownership, from the first installation through annual maintenance and emergency repairs, across every community in Durham Region.
David sizes every installation to your home’s actual heat load, not a square-footage rule of thumb. Durham Region’s newer construction in communities like Courtice and north Whitby often calls for variable-speed cold-climate units that can handle -25°C without dropping to backup heat. You get a written quote before anything gets ordered.
David diagnoses refrigerant issues, failed reversing valves, compressor faults, and defrost board failures. He stocks common parts for the major brands, which means most repairs get finished in a single visit rather than waiting days for parts to arrive.
When a system’s repair costs are climbing past what a replacement would run, David tells you plainly. He won’t push a new unit if fixing the existing one makes financial sense. If replacement is the right call, he’ll walk you through efficiency ratings and cold-climate options suited to Durham Region’s winters.
An annual service call keeps your heat pump running at rated efficiency and catches small problems before they become expensive ones. David checks refrigerant charge, cleans coils, tests the defrost cycle, and verifies electrical connections. A heat pump that skips maintenance for a few years loses efficiency and runs your electricity bill up.
Older R-22 or early R-410A systems common in Durham Region homes built in the 1990s and early 2000s are well past their efficiency peak. Upgrading to a modern inverter-driven unit can cut your heating and cooling costs substantially, and David can help you access current Ontario and federal rebate programs to offset the upfront cost.
When the heat pump stops working in January and the backup heat is costing you a small fortune per day, you need a technician who can actually show up. David takes emergency calls across all of Durham Region and he answers personally, so you’re talking to the person who’s coming to your house, not a dispatcher who’ll relay a message.
Since 2011, David’s worked on heat pumps in everything from post-war bungalows in central Oshawa to townhomes in Ajax’s newer northeast developments, and the most common thing he hears is that someone was pushed toward a full replacement when the system had years of life left in it. That’s not how he operates. David gives you his honest read on the equipment, quotes you upfront, and gets the work done himself.
A well-maintained heat pump in Ontario typically runs for 15 to 20 years. That range narrows toward 12 to 15 years for systems that skip annual servicing or get undersized for the home at installation. The outdoor unit works hard in Ontario’s climate, cycling through freeze-thaw repeatedly in shoulder seasons, and that mechanical stress accumulates faster when coils aren’t cleaned and refrigerant charge drifts low.
The defrost cycle is one of the most important things to keep on top of in this climate. Ontario winters produce the exact conditions that stress defrost boards and reversing valves most, and those are the components David replaces most often on systems past the ten-year mark. Catching a defrost issue early means a $300 to $500 board replacement instead of a compressor failure that costs several times that.
Annual maintenance is what separates a heat pump that makes it to 18 years from one that’s done at 11. A service call that checks refrigerant, cleans coils, and tests the defrost sequence each fall takes about an hour and it’s the single biggest thing you can do to protect your investment.
A straightforward heat pump installation in Durham Region, replacing an existing central air conditioner with a new heat pump using the existing air handler and ductwork, typically runs between $4,500 and $8,000 installed. Where you land in that range depends on the size of the unit required, the brand, whether your existing electrical service needs upgrading, and how much work the existing ductwork needs before it can support the system properly.
Full system installations, where both the heat pump and the air handler are new, run from $8,000 to $14,000 or more for cold-climate variable-speed equipment. Repair costs are a much smaller number: refrigerant recharges and leak repairs typically run $300 to $700, reversing valve replacements $400 to $900, and defrost board replacements $250 to $550 including labour. Emergency service calls carry a diagnostic fee, which David tells you upfront before he starts.
Every job gets a free written quote before work starts. The best way to know what your specific situation will cost is to get a free quote from David.
Durham Region’s housing stock spans a wide range. Oshawa has a significant number of homes built between the 1950s and 1980s, many with older galvanized ductwork or flex duct that wasn’t sized for the airflow a heat pump needs. Installing a heat pump into undersized ductwork without addressing the restriction is one of the most common mistakes David sees in this market, and it produces a system that runs long cycles, heats unevenly, and triggers nuisance shutoffs.
Whitby, Ajax, and north Pickering have grown substantially since the 1990s with large subdivisions of two-storey detached and semi-detached homes. These homes were usually built with natural gas forced air, and many of them have ductwork that can support a heat pump with minimal modification. The challenge in those homes is often electrical, since older panels in homes built before 2000 sometimes need a subpanel or service upgrade to accommodate the dedicated circuit a heat pump outdoor unit requires.
Clarington’s communities, including Bowmanville and Newcastle, include a mix of rural and suburban properties. Rural properties occasionally have propane backup rather than gas, which makes the economics of switching to a heat pump as a primary heating source even more compelling. David’s worked across all of these communities since 2011 and he knows what to look for before the quote goes on paper.
A heat pump that’s struggling in heating mode during a Durham Region January is often giving you warning signs weeks before it fails completely. Short cycling, where the unit runs for a few minutes and shuts off before the house reaches temperature, usually points to a refrigerant charge issue, a dirty coil, or an oversized system that was never matched correctly to the home. Each of those causes a different repair, but all of them show up the same way from inside the house.
Ice buildup on the outdoor unit beyond what you’d see during a normal defrost cycle is a specific red flag in this climate. Some frost is expected. A unit that’s completely encased in ice and not clearing it through its defrost cycle has either a defrost board fault, a refrigerant problem, or a defrost sensor that’s failed. Running a heat pump in that condition long enough will damage the compressor.
Unusual sounds are worth paying attention to. A grinding noise from the outdoor unit usually means bearing wear in the fan motor or compressor. A clicking sound on startup that doesn’t resolve into normal operation often points to a contactor or capacitor fault. Ignoring either of those tends to turn a $200 to $400 repair into a much larger one within a season or two.
Ontario’s climate sits at the edge of where conventional heat pumps start to struggle. Durham Region sees stretches of weather at or below -15°C most winters, and during those stretches a standard heat pump’s capacity drops significantly. If you’re running a cold-climate heat pump rated to -25°C or -30°C, that’s less of a concern. If you’re running an older unit or a standard-efficiency model, you’ll want your backup heat source in good working order and you’ll want to know at what outdoor temperature your thermostat switches to it.
Keep the outdoor unit clear of snow and ice accumulation, but don’t chip at frost on the coils. The defrost cycle handles that, and if it’s not clearing ice within 30 to 45 minutes, that’s the time to call. Keeping at least two feet of clear space around the outdoor unit helps airflow and lets the unit work at rated capacity rather than fighting a blockage.
Filter maintenance matters more with heat pumps than most homeowners realise. Because the same air handler runs heating and cooling all year, the filter never gets a break. A filter that’s been in place for six months in a Durham Region home with pets or renovation dust restricts airflow enough to drop efficiency meaningfully and can trigger safety shutoffs in both heating and cooling modes.
Heat pumps themselves don’t produce combustion gases, which eliminates the carbon monoxide risk associated with gas furnaces. If your home has a gas or propane backup furnace as a secondary heat source alongside the heat pump, that furnace still needs its annual inspection and CO detector check. David handles both sides of a dual-fuel system and won’t leave one without verifying the other is safe.
Ontario’s Greener Homes Grant offered up to $5,000 for eligible heat pump installations, and Canada Greener Homes continues to offer rebates depending on the equipment and the qualifying assessment. Enbridge Gas also runs rebate programs for homeowners who switch from gas to electric heat pumps. Rebate programs change frequently, so David can point you toward what’s currently available at the time of your quote rather than citing numbers that may have shifted.
All heat pump installation and refrigerant work in Ontario requires a TSSA-licensed technician. David holds TSSA Licence #000398183, which you can verify directly on the TSSA public registry. That licence matters for both your safety and your home insurance, since unlicensed refrigerant work can void coverage on some policies.
Checking the simple things before calling saves time for everyone, and sometimes it solves the problem entirely.
Heat pumps require the thermostat to be set to Heat and the temperature must be set above what the room currently reads. Also confirm the system mode isn’t set to Emergency Heat unless you actually need it. Running on Emergency Heat all the time means your backup resistance heat is doing all the work, and that costs significantly more to run than the heat pump itself.
Heat pumps have two circuit breakers: one for the air handler inside and one for the outdoor unit. Both must be on for the system to operate. A tripped breaker on the outdoor unit is one of the most common calls David gets across Durham Region, and it takes thirty seconds to check before you call anyone. Reset it once. If it trips again immediately, that’s a sign of an electrical fault and you’ll need a technician.
Some frost on the outdoor unit is normal in winter. A unit completely encased in ice is a different situation entirely and indicates a defrost issue. Don’t chip at it or pour water on it. Shut the system down and call Cassar. Running a heat pump with a fully iced-over coil puts serious strain on the compressor and can turn a manageable repair into a much larger one.
A blocked filter forces the heat pump to work harder and can trigger safety shutoffs. Pull the filter out and hold it up to light. If you can’t see through it, replace it before anything else. Filters in Durham Region homes with pets or older ductwork that accumulates dust tend to load up faster than the recommended replacement interval suggests. A clean filter takes five minutes to swap and sometimes fixes the problem entirely.
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 to it. The reversing valve is what switches the refrigerant flow between heating and cooling mode. A stuck valve is a mechanical repair that needs a technician. Check the thermostat wiring setting first if you’ve recently had any thermostat work done, then call David if the issue persists.
If none of the above resolved it, the system needs a licensed technician. David serves all of Durham Region and picks up the phone himself, so you’ll know exactly who’s coming and when.
Yes, and the answer is more useful than that. Modern cold-climate heat pumps are rated to operate at full heating capacity down to -15°C and maintain meaningful output at -25°C or colder. Durham Region winters regularly see stretches below -15°C, so the unit you choose matters. A cold-climate inverter-driven model like a Mitsubishi Hyper Heat or equivalent will handle a Durham Region winter without needing backup heat for most of those hours. A standard-efficiency heat pump sold a decade ago will struggle below -10°C and hand off to backup heat more often than most homeowners expect. When David quotes an installation in Durham Region, he’s specific about what the system will do at outdoor temperatures your home is actually going to see. The climate here isn’t a barrier to heat pump heating. The equipment selection is what makes the difference.
It depends on your current equipment, your energy costs, and how you want the system to work, and I’ll give you a straight answer on each of those. If your gas furnace is under ten years old and working well, the case for replacing it immediately is mostly about future energy costs and the environmental side of things, not immediate savings. If it’s older than fifteen years and you’re also due for a new air conditioner, a heat pump is worth a serious look because you’re replacing two systems with one. A dual-fuel setup, which keeps the gas furnace for the coldest nights and runs the heat pump for everything above around -10°C, is a practical middle option that a lot of Durham Region homeowners end up with. It keeps the gas backup for the handful of brutal nights each winter while running the heat pump for the majority of heating hours. I’ll walk through the numbers with you on a free quote call so you’re deciding with real figures, not averages.
For Durham Region homes, a heat pump installation replacing an existing central air conditioner using the current air handler typically runs $4,500 to $8,000 installed. A full system installation with a new air handler runs from $8,000 to $14,000 depending on the equipment spec. What drives the variation is the size of the unit your home requires based on a proper heat load calculation, whether the existing electrical service needs a dedicated circuit added or the panel upgraded, the brand and efficiency rating you choose, and whether the existing ductwork needs any work before it can support the system. Cold-climate variable-speed units cost more upfront than standard efficiency units, but they’re the right choice for Durham Region’s winters and they qualify for larger rebates. The best way to know what your specific job will cost is to get a free quote from David, no pressure, no obligation.
Ontario homeowners can currently access rebates through the Canada Greener Homes initiative, which offers up to $5,000 for an air-source heat pump installation when you complete a pre- and post-installation EnerGuide assessment. Enbridge Gas also runs rebate programs for customers switching from gas heating to electric heat pumps, with amounts that vary based on the equipment’s efficiency rating and your existing system. Some Durham Region homeowners have also accessed the Canada Oil to Heat Pump Affordability program, which is aimed at homes with oil or propane heat and offers more substantial funding. The amounts and eligibility rules on these programs change, so I always check what’s current at the time of your quote rather than giving you figures that may have shifted. What I can tell you is that a qualifying cold-climate heat pump installation can see $3,000 to $7,000 in combined rebates in many cases, which changes the payback calculation meaningfully. Get a free quote from David and he’ll walk you through what applies to your specific situation.
Most heat pump installations in Durham Region take one day. That covers removing the old equipment, setting the new outdoor unit, connecting refrigerant lines, wiring the electrical, setting up the air handler or connecting to the existing one, and commissioning the system. If the job involves new ductwork modifications, an electrical panel upgrade, or other preparatory work, it may run into a second day. David will tell you at the quote stage if the job is likely to take longer than a single visit, so you’re not caught off guard. One thing that can add time is lead time on the equipment itself. Some cold-climate heat pump models are in demand, and David will give you a realistic lead time when he quotes the job so you can plan around it rather than be surprised.
Start with the thermostat: confirm it’s set to Heat mode and the setpoint is above the current room temperature. Then check both circuit breakers, one for the air handler and one for the outdoor unit, since a tripped outdoor breaker is a common cause that’s easy to miss. Look at the outdoor unit for ice buildup beyond normal frost. Check your air filter and replace it if it’s blocked. If the system is blowing air but it’s cool in heating mode, the reversing valve may be stuck or the thermostat may be sending the wrong signal. If you’ve run through all of those and the system still isn’t heating, call David. He covers all of Durham Region and can usually get there same day. A heat pump that isn’t heating in a Durham Region winter isn’t something you want to leave for a few days while you wait on a contractor’s schedule.
Yes, and for Durham Region homeowners, a cold-climate heat pump is usually the right choice. Standard heat pumps lose capacity quickly below -10°C and hand off to backup heat for a large portion of Durham Region’s winter heating hours. Cold-climate models, with inverter-driven compressors and enhanced vapour injection technology, maintain meaningful capacity at -25°C and rated capacity at -15°C. That means you’re running heat pump efficiency for most of your heating hours rather than switching to expensive backup heat early in the evening when temperatures drop. David works with cold-climate equipment from the major manufacturers and he’ll specify the right system for your home’s heat load at the outdoor temperatures Durham Region actually sees, not a best-case-scenario figure.
Yes. A heat pump does exactly what an air conditioner does in summer by running the refrigerant cycle in reverse, moving heat out of your home and exhausting it outside. Cooling performance and efficiency are comparable to a central air conditioner of similar size, and in many cases the SEER rating on a modern heat pump is higher than an equivalent air conditioner. For Durham Region homeowners replacing an aging central A/C, switching to a heat pump instead of a like-for-like air conditioner replacement means you’re also getting a primary heating source for the shoulder seasons and a capable backup for the coldest stretches of winter. The summer performance is not a compromise. It’s simply the same refrigeration cycle that’s been cooling homes for decades, with the added ability to reverse direction when the temperature drops.
“Our heat pump stopped heating on a Tuesday night in February. David was at our Whitby house by noon the next day and had it fixed before dinner. Reversed valve, parts on the truck.”
“I called Cassar after getting two quotes for a full heat pump replacement in our Ajax home. David came out, looked at the system, and told me the compressor was fine and the problem was a $380 defrost board. He could have sold me a new unit and I wouldn’t have known the difference. He didn’t. That’s the thing I keep telling people about him.”
“What got my attention was the quote matching the final bill exactly. I’ve had contractors add charges at the end before, so I was watching for it. Nothing extra. David also put down floor covers before he brought anything in, which I didn’t expect. My Pickering neighbours used him after I mentioned it and had the same experience.”
David covers every community across Durham Region for heat pump installation, repair, and maintenance.
Same-day service available. TSSA certified. Honest pricing. Call or book online.
