With Ontario winters approaching, heat pumps are experiencing a buzz due to their potential to save on energy and ensure that homes in London remain warm without incurring high gas bills like traditional furnaces. But like any system, they do not work perfectly all the time; problems can ensue, including strange noises and even failures, particularly when they are not taken care of. Are they hype worthy, and how many people are actually purchasing them? Here, we plunged into the most prevalent issues with heat pumps, the reasons behind their popularity in Ontario, and why professional heat pump repair in Ontario will make the difference between headaches and hassle-free heating and cooling. We will avoid the pitfalls with the insights of Superior Plumbing & Heating that offer plumbing service in London so that they can keep you warm at home with boiler services Canada.
Common Heat Pump Problems in Ontario Homes
- Reduced efficiency in extreme cold: Struggles below -15°C, needing backup heat sources in winters.
- Frozen outdoor unit: Ice buildup blocks airflow, halting heat transfer.
- Refrigerant leaks: Low levels reduce performance, requiring specialized heat pump repair Ontario to fix safely.
- Noisy operation: Compressor rattles or fan vibrations annoy, often due to loose parts or debris.
- Thermostat miscommunication: Faulty wiring or settings cause erratic heating, leading to system strain.
Are Heat Pumps Popular in Ontario? Purchase Trends in 2025
The heat pumps are on a vibe in Ontario, with sales up 25 percent in 2025 as those living in the city prefer their dual heating-cooling capability, and people are choosing more cold-climate models to deal with winters that are icier. This trend is encouraged by rebates, which gives up to $5000 to install a heat pump in Ontario. Nevertheless, unless sized correctly or an amateur installation, problems arise, and 30 percent of new users have to deal with the unexpected heat pump repair London Ontario because something was set up or maintained poorly.
When Cold Kills Efficiency: Winter Performance Woes

Heat pumps Ontario freezes on them during severe conditions. Anything below -15C causes the air-source models to become ineffective, and they will have to use expensive electric backups to power their models, which will increase their bills to skyrocketing heights when unprepared house owners cannot afford it. Non-obvious culprits? This is enhanced by dirty coils or low refrigerant, which decreases the amount of heat produced and overworks the compressor.
This can be avoided by having your system serviced regularly and doing preventive checks during the heat pump repair to make sure that your system can withstand cold snaps. Leaving it unattended leads to frozen pipes or even complete shutdowns, particularly in houses that are poorly insulated, and the heat loss adds to the predicament.
Ice and Noise: Outdoor Unit Nightmares
Snow and ice are Ontario’s calling card, and heat pumps’ outdoor units often freeze over in London blizzards, blocking airflow and stopping heat transfer. Defrost cycles should help, but clogged drains or faulty sensors can trap ice, leading to breakdowns. Noisy compressors—rattling or humming—are another headache, often from loose bolts or debris sucked in during storms. These aren’t just annoyances; they signal wear that can wreck the system if ignored. Professional heat pump repair uses tools like thermal cameras to spot ice buildup or loose parts, saving you from costly replacements.
A Heat Pump Rescue: Quick Fix
Last winter in London, a new heat pump failed during a -10°C storm, leaving them shivering. They’d skipped maintenance, assuming it was “self-running,” only to find a refrigerant leak and iced-up coils. Superior Plumbing & Heating’s team rushed in, refilled the refrigerant, cleared the coils, and recalibrated the thermostat in 3 hours, restoring warmth and avoiding a $4,000 compressor replacement. This case highlights why regular checks are vital for heat pump installation Ontario—Superior’s expertise in boiler services Canada, proving pro help is non-negotiable.
Why Pros Beat DIY for Heat Pump Fixes
Trying to fix heat pump issues yourself—like defrosting coils with a hairdryer or tweaking wiring—can backfire, damaging components or voiding warranties. Ontario’s complex systems, especially in older homes, need expert handling to avoid CO risks or electrical hazards. Professionals use advanced tools like pressure gauges and thermal imagers to pinpoint issues, ensuring safe, code-compliant repairs. For heat pump installation or maintenance, Superior Plumbing & Heating’s expertise prevents small problems from becoming big bills, keeping your system reliable through Ontario’s toughest winters.
Protect Your Heat Pump
Heat pumps are a hot choice in Ontario, but issues like freezing coils, refrigerant leaks, or wiring glitches can derail their efficiency. With 2025’s rising adoption, proper setup and maintenance are crucial to avoid costly heat pump repair. Don’t let cold catch you off guard—contact Superior Plumbing & Heating for expert heat pump installation Ontario or boiler services Canada. Schedule a check now to ensure your system thrives, keeping your home warm and bills low all winter long.



