Auto AC & Heating Shops in Thunder Bay, ON

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

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D.Peppard Mechanical Inc
Thunder Bay • ≈ 8 km
D.
321 Cumberland St N, Thunder Bay, ON P7A 4P1, Canada, Thunder Bay
★ 5.0
149 Google reviews
Response ≈ 18 min • $$ • Quotes free
Auto AC & Heating Auto MechanicBrake Services
📞 (807) 577-4760 • Free quote • Verified
Up Front Auto
Thunder Bay • ≈ 9 km
UP
112 Front St, Thunder Bay, ON P7A 4K5, Canada, Thunder Bay
★ 4.9
112 Google reviews
Response ≈ 24 min • $$ • Quotes free
Auto AC & Heating Auto MechanicEngine Repair
📞 (807) 346-4091 • Free quote • Verified
D & M Automotive
Thunder Bay • ≈ 3 km
D
525 Cumberland St N, Thunder Bay, ON P7A 4S2, Canada, Thunder Bay
★ 4.8
74 Google reviews
Response ≈ 57 min • $$$ • Quotes free
Auto AC & Heating Engine RepairVehicle Inspection
📞 (807) 345-0800 • Free quote • Verified
Grant Auto
Thunder Bay • ≈ 4 km
GR
178 Front St, Thunder Bay, ON P7A 4K7, Canada, Thunder Bay
★ 4.8
114 Google reviews
Response ≈ 48 min • $$$ • Quotes free
Auto AC & Heating Auto MechanicBrake Services
📞 (807) 345-4355 • Free quote • Verified
Lakeshore Auto & Co
Thunder Bay • ≈ 3 km
LA
429 Fort William Rd, Thunder Bay, ON P7B 2Z5, Canada, Thunder Bay
★ 4.8
112 Google reviews
Response ≈ 49 min • $ • Quotes free
Auto AC & Heating Auto MechanicTransmission
📞 (807) 474-3229 • Free quote • Verified
Speedy BK Tire
Thunder Bay • ≈ 3 km
SP
145 Dublin Ave, Thunder Bay, ON P7B 5R2, Canada, Thunder Bay
★ 4.8
231 Google reviews
Response ≈ 34 min • $$$ • Quotes free
Auto AC & Heating Tires & WheelsBrake Services
📞 (807) 768-7128 • Free quote • Verified
Gradner's Garage
Thunder Bay • ≈ 5 km
GR
195 Frederica St E, Thunder Bay, ON P7E 3V4, Canada, Thunder Bay
★ 4.7
93 Google reviews
Response ≈ 48 min • $$$ • Quotes free
Auto AC & Heating Brake ServicesAuto Mechanic
📞 (807) 623-6913 • Free quote • Verified
H & H Auto Service
Thunder Bay • ≈ 3 km
H
720 Red River Rd, Thunder Bay, ON P7B 1J5, Canada, Thunder Bay
★ 4.7
191 Google reviews
Response ≈ 39 min • $$ • Quotes free
Auto AC & Heating Auto MechanicBrake Services
📞 (807) 345-1319 • Free quote • Verified
Thunder Bay Auto Parts
Thunder Bay • ≈ 6 km
TH
520 Squier St, Thunder Bay, ON P7B 4A8, Canada, Thunder Bay
★ 4.6
130 Google reviews
Response ≈ 44 min • $ • Quotes free
Auto AC & Heating Suspension & SteeringAuto Lights & Signals
📞 (807) 344-7201 • Free quote • Verified
Auto-One Car Care & Service Centre
Thunder Bay • ≈ 6 km
AU
80 Court St S, Thunder Bay, ON P7B 2X4, Canada, Thunder Bay
★ 4.5
210 Google reviews
Response ≈ 19 min • $$$ • Quotes free
Auto AC & Heating Auto ElectricalVehicle Inspection
📞 (807) 344-2644 • Free quote • Verified
CRS Auto Centre
Thunder Bay • ≈ 2 km
CR
361 Hodder Ave, Thunder Bay, ON P7A 1T6, Canada, Thunder Bay
★ 4.5
72 Google reviews
Response ≈ 24 min • $$$ • Quotes free
Auto AC & Heating Suspension & SteeringVehicle Inspection
📞 (807) 683-5992 • Free quote • Verified
Minute Muffler Brake & Wheel
Thunder Bay • ≈ 4 km
MI
677 Memorial Ave, Thunder Bay, ON P7B 3Z6, Canada, Thunder Bay
★ 4.5
147 Google reviews
Response ≈ 17 min • $$ • Quotes free
Auto AC & Heating Brake ServicesExhaust System
📞 (807) 345-3441 • Free quote • Verified
Payless Automotive Maintenance and Repairs
Thunder Bay • ≈ 9 km
PA
330 Fort William Rd, Thunder Bay, ON P7B 2Z3, Canada, Thunder Bay
★ 4.4
63 Google reviews
Response ≈ 52 min • $$ • Quotes free
Auto AC & Heating Auto MechanicBrake Services
📞 (807) 344-3444 • Free quote • Verified
12 Volt Installations & Accessories
Thunder Bay • ≈ 9 km
12
564 10th Ave Unit C, Thunder Bay, ON P7B 2R5, Canada, Thunder Bay
★ 4.3
34 Google reviews
Response ≈ 60 min • $$ • Quotes free
Auto AC & Heating Auto ElectricalAuto Lights & Signals
📞 (807) 621-0412 • Free quote • Verified
Lightning Rod
Thunder Bay • ≈ 10 km
LI
519 Brock St E, Thunder Bay, ON P7E 4H8, Canada, Thunder Bay
★ 4.3
21 Google reviews
Response ≈ 35 min • $$$ • Quotes free
Auto AC & Heating Rust Proofing & ProtectionRust Proofing & Protection
📞 (807) 577-1859 • Free quote • Verified
Midas
Thunder Bay • ≈ 8 km
MI
545 Memorial Ave, Thunder Bay, ON P7B 3Y9, Canada, Thunder Bay
★ 4.3
257 Google reviews
Response ≈ 22 min • $$$ • Quotes free
Auto AC & Heating Brake ServicesExhaust System
📞 (807) 788-0922 • Free quote • Verified
Narvi's Auto Service
Thunder Bay • ≈ 4 km
NA
918 Alloy Dr, Thunder Bay, ON P7B 6A4, Canada, Thunder Bay
★ 4.3
134 Google reviews
Response ≈ 40 min • $$ • Quotes free
Auto AC & Heating Auto MechanicTransmission
📞 (807) 622-2829 • Free quote • Verified
Done-Rite Tire & Auto
Thunder Bay • ≈ 6 km
DO
1020 Carrick St, Thunder Bay, ON P7B 5P9, Canada, Thunder Bay
★ 4.2
137 Google reviews
Response ≈ 37 min • $$ • Quotes free
Auto AC & Heating Tires & WheelsBrake Services
📞 (807) 622-1148 • Free quote • Verified
Tronsen Automotive
Thunder Bay • ≈ 8 km
TR
379 Fort William Rd, Thunder Bay, ON P7B 2Z4, Canada, Thunder Bay
★ 4.2
25 Google reviews
Response ≈ 33 min • $ • Quotes free
Auto AC & Heating Suspension & SteeringAuto Mechanic
📞 (807) 622-0074 • Free quote • Verified
Auto Medic
Thunder Bay • ≈ 3 km
AU
407 Fort William Rd, Thunder Bay, ON P7B 2Z5, Canada, Thunder Bay
★ 4.1
47 Google reviews
Response ≈ 48 min • $$$ • Quotes free
Auto AC & Heating Auto MechanicEuropean & Speciality Cars
📞 (807) 344-9291 • Free quote • Verified
Stop'N Steer Shops
Thunder Bay • ≈ 6 km
ST
1005 Memorial Ave, Thunder Bay, ON P7B 4A1, Canada, Thunder Bay
★ 3.9
63 Google reviews
Response ≈ 56 min • $$ • Quotes free
Auto AC & Heating Suspension & SteeringAuto Mechanic
📞 (807) 623-4700 • Free quote • Verified
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Thunder Bay customer reviews

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Verified Reviews for Auto AC & Heating
★ ★ ★ ★ ★

“Brandy is awesome, and the Dave’s are too. Very honest, timely, and friendly! Also they shuttle me to work when I need it! Only mechanics in Tbay I trust honestly”

Madison Masters • Auto AC & Heating at CRS Auto Centre, Thunder Bay
★ ★ ★ ★ ★

“Staff are professional, honest, and fair. Their service has been much appreciated!”

Shujun Qin • Auto AC & Heating at CRS Auto Centre, Thunder Bay
★ ★ ★ ★ ★

“Narvi’s is without a doubt the best auto shop in town. I had my engine overheat a week before I had to drive to Southern Ontario and they went above and beyond to get it all fixed and kept me updated the entire time.

They really treat their customers like family, and always get the job done! All my thanks to the team over at Narvi’s!!”

Emily Mayhew • Auto AC & Heating at Narvi's Auto Service, Thunder Bay
★ ★ ★ ★ ★

“I brought my 2003 Honda Civic there for a number of things when I still had it.

Stop and Steer replaced:

Blower motor and blower motor control module ( for fans)

fuel lines and a leak in the fuel tank

Brake lines (had to get it towed there by CAA)

Power door locks and drivers side manual lock with new key.

Water outlet housing and thermostat replacement and repair for a unknown coolant leak

A brake job with some calipers.

Wheel bearings and maybe a hub.

This was over the last 3 years I owned the vehicle, after I finally had the money to fix what had been broken for a while.

They've always been able to fit me in, usually that week. They never tried to upsell me. Even when they fixed power door locks and the Key cylinder they left the broken door handle (thing still worked, saved $300).

They were never cheap repairs but the only time I ever had to bring my car back was the coolant leak, and that was a difficult repair, had no idea where it was coming from.

I think they did great work with every pain in the butt job with that car and I bring my new car there now.

They do great work, comes with a fair price.”

Forest • Auto AC & Heating at Stop'N Steer Shops, Thunder Bay
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Find a Best Auto AC & Heating in Thunder Bay, ON

Don't leave your Auto AC & Heating to chance. Browse 21 trusted mechanics in Thunder Bay, read authentic customer reviews, and find the right shop for your vehicle today.

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 Thunder Bay? +
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.