Heating & A/C Service
Air Conditioning & Heating System
Stay comfortable in every season with professional automotive heating and air conditioning services. Whether your A/C isn’t blowing cold air, your heater isn’t producing enough heat, or you’re noticing unusual noises or weak airflow, our experienced technicians can diagnose and repair the problem quickly. We service complete climate control systems for all makes and models, including domestic, import, and European vehicles. From A/C recharges and refrigerant leak repairs to heater core replacement and climate control diagnostics, we’ll keep your vehicle comfortable year-round.
- Coolant flush
- A/C recharge (refrigerant recharge)
- A/C leak detection and repair
- Air conditioning compressor replacement
- A/C condenser replacement
- A/C evaporator repair and replacement
- Cabin air filter replacement
- Heater diagnostics and repair
- Heater core replacement
- Blower motor replacement
- Climate control system diagnostics
- HVAC control module diagnostics
Trusted by 100+ Drivers in Oakville
Work was done quickly and cleanly, prices are fair, and communication was clear throughout the process. You can tell they care about their reputation and about doing the job right. Definitely recommend this place if you’re looking for a reliable and trustworthy auto service.
Sacha Kurochka
Fantastic service. Very knowledgeable and friendly. It’s in my honest opinion, prices are very reasonable and affordable. Had a tune-up done on my Mercedes, oil change plugs tire rotation and it was a fraction of the cost from the dealer. I strongly recommend.
Ralph Schiafone
These guys know what they’re doing. Came in to change my tires — everything was done fast, clean, and without any upselling. You can tell they have real experience: no mistakes, no wasted time, just solid work. Prices are fair and the service is straightforward — not like those places that try to squeeze extra money out of you. If you need something done quickly and properly, definitely worth coming here.
Vitalik Khromeiko
The staff at Dorval Service have provided me and my family with superior service for over 5 years. Staff are always pleasant, friendly and honest with their assessments and work to provide prompt and superior service. I recommend them to all my friends.
Carolynn Leblanc
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Climate System FAQ
There are several possible causes, including low refrigerant, a refrigerant leak, a faulty compressor, a damaged condenser, or an electrical issue within the A/C system. We’ll perform a complete diagnostic inspection to identify the cause and recommend the appropriate repair.
Even if your manufacturer does not list a service interval, regular transmission fluid inspection and replacement can help extend the life of your transmission, improve shifting performance, and reduce the risk of costly repairs.
Your air conditioning system should be inspected regularly, especially if you notice reduced cooling performance, unusual noises, or unpleasant odors. Preventative maintenance, including checking refrigerant levels and inspecting system components, can help prevent costly repairs.
Most manufacturers recommend a coolant flush every 80,000 to 160,000 kilometres or every 5 to 10 years, depending on your vehicle and the type of coolant it uses. However, if you notice your engine running hotter than normal, poor heater performance, coolant discoloration, or you’re due for scheduled maintenance, it may be time for a coolant flush. Replacing old coolant helps prevent corrosion, overheating, and premature wear of important cooling system components such as the radiator, water pump, thermostat, and heater core. If you’re unsure when your vehicle was last serviced, we can inspect your cooling system and recommend the appropriate maintenance.
Yes. We perform professional A/C recharges using the correct refrigerant specified for your vehicle. Before recharging the system, we inspect for leaks and other issues to ensure the repair is effective and long-lasting.
Common symptoms include warm air coming from the vents, unusual squealing or grinding noises, the A/C clutch not engaging, weak airflow, or the air conditioner cycling on and off frequently. Replacing a failing compressor early can help prevent damage to other A/C system components.