London ac repair

In London We Repair Your Broken cooling system
Professional air conditioner repair services in London, Ontario. Same day repairs, 24-hour contact, and certified technicians.
We Fix Broken Cooling Systems:
Home Central Units
Ductless Blower Heads
Heat Pumps
Air Conditioning
ACs
Working to offer
24 hours contact | Same day repairs |Emergency repairs available| Local to your area | No call centers |
All of our AC Repair technicians hold a valid license with Skilled Trades Ontario
We Repair All AC Brands
Top Brands
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Signs Your AC is Broken or Needs Repair:
- Air Conditioner unit is frozen
- AC Lines are frozen
- The Cooling Coil in the furnace is frozen
- Fan will not turn on
- Fan turns on but does not blow cold air
Working With Donaldson Home Services:
- Our certified Gas & Refrigeration technicians will provide professional air conditioner repairs and recommendations.
- Up front pricing before any repair is made
- 2-Hour arrival windows
- Our repair guarantee
- New unit discount after attempted repair fails
- BONUS – Check out our latest promotions!
BEFORE YOU BOOK – here are some things you can try!
For a professional air conditioner repair or service, call Donaldson (519)-439-4328.










OVER 1,900+ GOOGLE REVIEWS
AlexHenick2024-06-21Trustindex verifies that the original source of the review is Google. The issue I had called about seemed to resolve on its own, and we couldn’t recreate it. The service technician, Liam took the sump pump out of the well, cleaned both the pump and the well, and gave me options for a new pump serviced by them should I have any more issues with my current pump. He was knowledgeable, polite, and super understanding when the sump pump wouldn't do the thing I called about it doing. Rose Braxton2024-06-21Trustindex verifies that the original source of the review is Google. Friendly, efficient, prompt! The technician explained what he was doing during my a/c inspection and even removed a dead mouse from my unit outside. I like the text system that sends you a text with a photo of the technician when they are on their way! Danette Jeary2024-06-21Trustindex verifies that the original source of the review is Google. Awesome work & friendly service. They explain everything to you along the way. Very happy we went with Donaldson. We’ll be back! Andrew Mitchell2024-06-20Trustindex verifies that the original source of the review is Google. These are the guys you want to work with on any A/C install. From our initial service call to sizing and sales assessment and install everyone involved was amazing to work with, knowledgeable and professional. Made a customer for life. Larry Rigg2024-06-20Trustindex verifies that the original source of the review is Google. Very happy with the service. Both technicians were very professional and did a fantastic job installing our new furnace and a/c. Even under extremely hot conditions ( low 40’s). They cleaned up their mess and left their work space spotless. Very impressed with the service!! Mary Anne Mitchell2024-06-19Trustindex verifies that the original source of the review is Google. We purchased an air purification system from Donaldson, both Chris and Nathan were a pleasure to deal with, answered all of my many questions. When Milton came to install today, he was very friendly, knowledgeable and did a great, tidy installation. David Saunders2024-06-19Trustindex verifies that the original source of the review is Google. Evan and Quinn installed my new furnace and absolutely floored me with their professionalism and customer service! Top notch install plus this level of service is not as common as you think these days. Donaldson's clearly understands how to hire the right people to come into your home. Kimberley Patterson2024-06-18Trustindex verifies that the original source of the review is Google. Donaldson was great to work with start to finish. I was able to schedule when I needed to, and Liem arrived on time and stayed through the whole day as a somewhat simple job became more challenging. I received a text confirming they were coming and containing a photo of the plumber. Liem arrived and went straight to work. All their administrative features are digital from the estimate to the invoice. Liem worked diligently for several hours, informed me of the progress and stayed until everything was successfully tested, including a 20 minutes dishwasher cycle. I'd definitely use them again!! Maidy Keir2024-06-18Trustindex verifies that the original source of the review is Google. So glad I choose Donaldsons For my new heat pump, they were very helpful and helping me choose the proper model that I needed. They were very efficient they came and there was no problems and I would recommend them anytime.Load more
Things You Can Check Before Booking Your AC Repair
Here are some things you can try to troubleshoot your air conditioner. Watch out for these signs to help reduce further damage to your air conditioning unit. If you catch the problem and repair it early, it may save the unit from having to be replaced.
Things you can try:
- Reset the breaker – sometimes the air conditioner breaker trips during the Winter and it needs to be reset. Check the breaker or check for a blown fuse on your electrical panel.
- Change your furnace filter – your furnace and air conditioner work together so it’s important to continue changing your filter through the Summer. A dirty filter acts like a BLOCKED filter so air can’t get through causing your system to work harder than it has to. If there is condensation or freezing on or around your furnace, check your filter, shut your air conditioner off for a few hours and try again.
- Remove your AC cover – before running your air conditioner, make sure you remove the cover to prevent freezing & possibly ruining the compressor. Your air conditioner needs proper airflow to work.
- Check the thermostat – make sure the thermostat is set to COOL and not set to fan. We suggest adjusting the thermostat to a temperature based on your comfort level, not necessarily just what temp the thermostat says. We do not recommend cranking the AC as this may put stress on the system which can result in needing a repair and higher energy bills… TIP: Think of it like a car. Typically, better fuel economy is achieved with consistent highway driving, not stop and go.
- Keep vents clear – moving things like furniture away from the vents will promote easier air circulation so your furnace and air conditioner can work with ease. This can result in better comfort & energy savings. Check that your vents are open, free and clear.
- Water dripping from the inside portion of the AC unit – it could be one of two problems:
1) a plugged condensate drain (typically an inexpensive repair) or
2) the indoor evaporator coil is freezing up. This could be due to either an airflow issue or possible refrigerant charge issue. Change your filter, turn off the system and call us for help 519-439-4328.
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Let's us know what you need! We are happy to help with Air Conditioning, Furnaces, Heat Pumps, Plumbing, Bathroom Renos, and Electrical hooks ups. All your home comfort needs.