Heat pump repair Durham Region
Ben Amina
Aire One East Heating & Cooling, 1910 Dundas St E #117, Whitby
Heat pump repair Durham Region is the licensed diagnosis and fix of a home heat pump by a certified technician, on a system that both heats and cools, which is why a failure in a January deep freeze or a July heat wave is urgent rather than routine. Aire One East is based in Whitby and covers the whole region on every major brand. For new systems and the model range, see our heat pump page. [1]
- Before booking heat pump repair Durham Region homeowners can check three things free: the thermostat mode, the breaker and outdoor disconnect, and the air filter.
- A heat pump that runs in one mode only, cooling but not heating or the reverse, usually has a stuck reversing valve and needs a technician.
- Ice that returns after thawing points to low refrigerant from a leak, which is licensed-only work in Canada.
- A diagnostic visit runs $99 to $150 CAD and is applied toward the repair; most single-component repairs land $250 to $600 CAD in 2026.
- On a unit past 12 years, weigh the repair against replacement, where the Home Renovation Savings program may apply to a qualifying cold-climate heat pump.
Short answer: for heat pump repair Durham Region residents should call a TSSA-licensed contractor that runs a genuine 24/7 line, after confirming the thermostat, breaker, and filter are not the cause.
Aire One East diagnoses every major brand, applies the diagnostic fee to the repair, and dispatches for heat pump repair Durham Region wide from Whitby. Call 905-576-7600.
Heat pump repair Durham Region: what the service covers
A proper heat pump repair Durham Region call starts with a diagnosis, not a parts swap. Because a heat pump both heats and cools through one machine, the technician checks the thermostat call, the breaker and outdoor disconnect, the refrigerant pressures, the capacitor and contactor, the reversing valve that switches between modes, and the defrost cycle that clears winter frost. Only then is the fault quoted, so you pay for the real problem.
Our technicians are our own employees, licensed, insured, and background-checked, and they carry parts for every major brand, which is what a heat pump repair Durham Region visit should look like done right. Work that touches refrigerant or sealed electrical components is not a do-it-yourself job, and in Ontario refrigerant handling requires certification. If your system simply will not start, our heat pump troubleshooting guide walks through the free checks first, and a seasonal tune-up through our maintenance and protection plans catches most faults before they strand you.
Why is my heat pump not heating or cooling?
Most heat pump repair Durham Region calls trace to one of these faults. The first three you can check yourself. The rest need a licensed technician.
| Fault | Typical symptom | Who fixes it |
|---|---|---|
| Wrong thermostat mode or dead batteries | Nothing runs, or the fan runs with no heating or cooling | You |
| Tripped breaker or disconnect off | Completely dead unit | You once; a pro if it trips again |
| Clogged filter or blocked outdoor unit | Weak airflow, long run times, iced coil | You |
| Frozen coil that returns after thawing | Ice buildup, little air movement | Pro, usually low refrigerant |
| Failed capacitor or contactor | Humming outdoor unit, fan not spinning | Pro |
| Low refrigerant from a leak | Weak performance, hissing, ice on lines | Pro, licensed only |
| Stuck reversing valve | Cools but will not heat, or the opposite | Pro |
| Failing compressor | Loud grinding then silence, breaker trips | Pro, often replacement territory |
Ranked by how often we see them on Durham Region service calls, verified August 2026.
One symptom worth naming on the phone: if the system works in one mode only, tell us that. A heat pump that cools well but will not heat, or the reverse, usually has a stuck reversing valve, and saying so up front saves diagnostic time and money.
How much does heat pump repair Durham Region cost?
Most single-component heat pump repairs in Durham Region land between $250 and $600 CAD in 2026, with a diagnostic fee of $99 to $150 CAD that is applied toward the repair when you proceed. Refrigerant leaks, reversing valves, and compressors cost more, and every repair starts with a proper diagnosis because guessing at parts is the most expensive way to fix a heat pump.
| Repair | Typical 2026 cost (CAD) | Notes |
|---|---|---|
| Diagnostic visit | $99 to $150 CAD | Applied to the repair |
| Capacitor or contactor | $250 to $450 CAD | Most common single repair |
| Defrost control or sensor | $300 to $600 CAD | Common winter fault |
| Refrigerant leak repair and recharge | $800 to $2,000 CAD | Depends on leak location |
| Reversing valve replacement | $1,500 to $2,500 CAD | Labour intensive |
| Compressor replacement | $2,500 to $4,500 CAD | Compare against a new unit |
Typical residential ranges for Durham Region, verified August 2026. Exact pricing follows an in-home diagnosis. For full system pricing, see our heat pump cost guide for Durham Region.
Which Durham Region communities we cover
Heat pump repair Durham Region service runs from our Whitby head office across the whole region, and the local mix matters. Urban Whitby, Oshawa, Ajax, and Pickering have a growing base of newer cold-climate heat pumps where correct refrigerant charge and defrost operation are everything. In the rural north, many Scugog, Port Perry, and Uxbridge properties sit beyond the natural gas network and run on propane, oil, or electric backup, which is exactly where a heat pump earns its keep and where a fast repair keeps a home warm through a cold snap.
- Whitby, Oshawa, Ajax, Pickering: dense urban and suburban coverage, newer high-efficiency and ductless heat pumps.
- Courtice and Bowmanville: a mix of established homes and new subdivisions on the east side of the region.
- Port Perry, Uxbridge, and rural Scugog: off-gas and larger-lot properties where cold-climate heat pumps and reliable service matter most.
Durham winters near Lake Ontario mean heat pumps run hard and defrost often, so a fault that starts small can leave you without heat quickly, and our heat pump repair Durham Region crews carry common parts to fix it on the first visit where possible. Being based in Whitby lets us reach a no-heat call across the region without waiting for a dispatcher two regions away.
Should you repair or replace your heat pump?
One honest rule of thumb we give heat pump repair Durham Region customers: if the repair quote exceeds a third of the cost of a new system and the unit is past 12 years old, put the money toward replacement instead. A compressor or reversing valve on an aging heat pump is rarely worth it, even though it is billable work for us. A newer cold-climate model also holds its output better in a deep freeze, so replacement can improve comfort while it restores reliability.
If replacement wins, a qualifying cold-climate heat pump may be eligible for the Home Renovation Savings program of up to $7,500 CAD, depending on the equipment and the rules in force when you apply. Confirm current details at homerenovationsavings.ca before you budget around a headline number. We quote the repair and the replacement side by side, in writing, and tell you plainly which one we would choose.
Key terms in this article
- Reversing valve: the component that flips refrigerant flow so one machine can both heat and cool; when stuck, you get one mode only.
- Defrost cycle: a normal winter routine where the heat pump briefly reverses to melt frost off the outdoor coil.
- Capacitor: the part that gives the fan and compressor motors their starting jolt; it holds a charge even with power off.
- Refrigerant charge: the sealed volume of refrigerant; low charge always means a leak, never normal use.
- Cold-climate heat pump: a model rated to hold useful heating output at low outdoor temperatures, suited to Durham winters.
Frequently asked questions
| Your heat pump repair questions, answered |
|---|
| How much does heat pump repair Durham Region cost? Most single-component heat pump repairs in Durham Region cost $250 to $600 CAD, with a $99 to $150 CAD diagnostic applied toward the work. A capacitor is the most common fix. Refrigerant leaks run $800 to $2,000 CAD, and a reversing valve or compressor runs higher, at which point a new unit is often the better value. |
| Why does my heat pump cool but not heat? A heat pump that works in one mode only usually has a stuck reversing valve, the part that switches between heating and cooling. It can also be a control or sensor fault. Both need a licensed technician, so tell us the exact symptom on the phone to speed up the diagnosis. |
| Do you offer emergency heat pump repair in Durham Region? Yes. We run a genuine 24/7 line for no-heat and no-cool failures overnight, on weekends, and on holidays, and dispatch across the region from our Whitby office. Same-day service is available subject to technician availability. |
| My heat pump is covered in ice. Is that a problem? Light winter frost is normal and the defrost cycle clears it. A solid ice shell, or any ice in summer, is not. Switch the system off to thaw and replace the filter. If ice returns, the cause is usually low refrigerant or a sensor fault that needs professional diagnosis. |
| Is it worth repairing an older heat pump? If the unit is past 12 years and the repair exceeds about a third of a new system, replacement is usually the better value, especially for major parts. A qualifying cold-climate replacement may also be eligible for the Home Renovation Savings program. We quote both options so you can choose. |
Do not take our word for it alone. Read our 364 verified reviews on Google, and see the Heating, Refrigeration and Air Conditioning Institute of Canada for what accredited contractors are expected to deliver.
