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Auto AC & Heating Shops in Oshawa, ON

Find trusted auto ac & heating services in Oshawa. Compare prices, read reviews, and book online.

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Active Climate Mechanical
Oshawa • ≈ 2 km
AC
Active Climate Mechanical
303 Wilson Rd N, Oshawa, ON L1G 6E4, Canada, Oshawa
★ 5.0
48 Google reviews
Response ≈ 35 min • $$ • Quotes free
Auto AC & Heating
📞 (289) 892-2410 • Free quote • Verified
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Durham Automotive And Brakes
Oshawa • ≈ 4 km
DU
Durham Automotive And Brakes
88 Bond St W, Oshawa, ON L1G 1A5, Canada, Oshawa
★ 4.7
336 Google reviews
Response ≈ 24 min • $ • Quotes free
Auto AC & Heating Auto MechanicBrake Services
📞 (905) 725-3838 • Free quote • Verified
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Ace's Automotive Inc.
Oshawa • ≈ 9 km
AC
Ace's Automotive Inc.
331 Park Rd S, Oshawa, ON L1J 4H6, Canada, Oshawa
★ 4.5
498 Google reviews
Response ≈ 45 min • $ • Quotes free
Auto AC & Heating Auto MechanicBrake Services
📞 (905) 725-7200 • Free quote • Verified
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Verified Reviews for Auto AC & Heating
★ ★ ★ ★ ★

“Had Logan trouble-shoot our furnace not working and we had a gas smell throughout house. He was very knowledgeable and found the problem right away and got us back up and running. Great customer service and took the time explaining the issue we were having. Would highly recommend him to anyone!”

Chris McTeague • Auto AC & Heating at Active Climate Mechanical, Oshawa
★ ★ ★ ★ ★

“I’ve been having issues with my starter motor and RPM, and the team here was amazing. Shawn was incredibly helpful and took the time to figure out the problem right away. I stopped by, and they fixed my car on the spot. Within 20 minutes, I had my keys back and was ready to go.

The service was honest, fast, and professional. I highly recommend this place if you’re looking for genuine and reliable automotive service. Thanks again, Shawn and the team! ⭐⭐⭐⭐⭐”

Mandeep Singh • Auto AC & Heating at Durham Automotive And Brakes, Oshawa
★ ★ ★ ★ ★

“Back when I lived in good ol' Ontario, these guys were my go to shop. They always do a bang up job at a great price. That dude, Julian, is an absolute rock star and definitely needs a raise.
These guys will always take care of your ride and treat you great!”

Thomas Nagy • Auto AC & Heating at Ace's Automotive Inc., Oshawa
★ ★ ★ ★ ★

“Knows what he's doing. Would high recommend.”

Ehtasham Gondal • Auto AC & Heating at Active Climate Mechanical, Oshawa
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Find a Best Auto AC & Heating in Oshawa, ON

Boommar lists 3 verified mechanics in Oshawa. Compare real reviews, response times, pricing bands, and open bays — then book online.

Common Causes of AC & Heating Failure

Refrigerant leaks from deteriorated O-rings, hoses, or the condenser
Failed compressor clutch or internally damaged AC compressor
Clogged cabin air filter restricting airflow to the vents
Leaking or plugged heater core causing foggy windows and sweet smell
Broken blend door actuator preventing hot/cold air mixing
Failed blower motor or resistor stopping airflow from the vents entirely

Signs Your Auto AC or Heating System Needs Service

Air conditioning blows warm air instead of cold
Heater blows cold air even after the engine warms up
Weak airflow from the vents even at the highest fan setting
Strange sweet smell inside the cabin indicating a heater core leak
Unusual clicking or grinding noises when adjusting the temperature
Windows fog up excessively and the defroster doesn't clear them

Auto AC & Heating Services Available

AC Recharge & Leak Test

Evacuating, testing for leaks, and recharging refrigerant

AC Compressor Replacement

Installing a new compressor with full system flush

Heater Core Replacement

Dashboard removal and heater core swap

Cabin Air Filter Replacement

Installing a fresh filter for clean cabin airflow

Blend Door Actuator Repair

Replacing the motor that controls hot and cold air mixing

Blower Motor Replacement

Restoring full fan speed and airflow

Auto AC & Heating Tips

Run your AC system for at least 10 minutes per month even in winter to keep the seals lubricated
Replace your cabin air filter every 20,000-25,000 km for optimal airflow and air quality
If your AC stops blowing cold, get a leak test before just adding more refrigerant
A sweet antifreeze smell inside the cabin is a strong indicator of a leaking heater core
After winter, have your AC system inspected before the summer heat arrives
Don't ignore a defroster that doesn't work—it's a serious safety hazard in cold weather

Frequently Asked Questions

How much does an AC recharge cost in Oshawa? +
A basic AC recharge with leak inspection costs $150-$300. If a leak is found and a component needs replacement (condenser, evaporator, or compressor), the total repair can range from $500-$2,000+.
Why does my AC blow cold then warm? +
This is often caused by an intermittent refrigerant leak, a failing compressor clutch, or a blocked expansion valve. A professional leak test and system pressure check can pinpoint the exact cause.
How much does heater core replacement cost? +
Heater core replacement is labor-intensive because the dashboard must be partially or fully removed. Expect to pay $800-$1,800+ depending on your vehicle's complexity.
How often should I recharge my car's AC? +
A properly sealed AC system should not need regular recharging. If it needs refrigerant frequently, there's an active leak that must be repaired first to avoid environmental damage and ongoing costs.

Auto AC & Heating in Nearby Cities

Toronto Ottawa Mississauga Brampton Hamilton London Markham Vaughan

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