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Auto AC & Heating Shops in Longueuil, QC

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

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R&A Auto Inc.
Longueuil • ≈ 3 km
R&
R&A Auto Inc.
1416 Rue Soucy local 3, Longueuil, QC J4T 1A3, Canada, Longueuil
★ 5.0
3 Google reviews
Response ≈ 53 min • $$$ • Quotes free
Auto AC & Heating
📞 (450) 486-7999 • Free quote • Verified
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Auto Service Rive-Sud
Longueuil • ≈ 9 km
AU
Auto Service Rive-Sud
1540 Rue de Coulomb PORT D, Boucherville, QC J4B 8A3, Canada, Longueuil
★ 4.9
26 Google reviews
Response ≈ 29 min • $$ • Quotes free
Auto AC & Heating Suspension & SteeringAuto Detailing
📞 (514) 641-2886 • Free quote • Verified
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Radiateur Pneu Alain Trudel et Lapalme
Longueuil • ≈ 8 km
RA
Radiateur Pneu Alain Trudel et Lapalme
1589 Bd Taschereau, Longueuil, QC J4K 2X8, Canada, Longueuil
★ 4.8
85 Google reviews
Response ≈ 46 min • $$ • Quotes free
Auto AC & Heating Auto Cooling System
📞 (450) 677-6151 • Free quote • Verified
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Les Services D'auto Alex Plus
Longueuil • ≈ 9 km
LE
Les Services D'auto Alex Plus
831 Rue de Verchères, Longueuil, QC J4K 2Y8, Canada, Longueuil
★ 4.7
953 Google reviews
Response ≈ 16 min • $$$ • Quotes free
Auto AC & Heating Brake ServicesEngine Repair
📞 (450) 674-0202 • Free quote • Verified
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Garage Mécanique Sabah
Longueuil • ≈ 4 km
GA
Garage Mécanique Sabah
1445 Bd Nobert, Longueuil, QC J4K 5H9, Canada, Longueuil
★ 4.5
404 Google reviews
Response ≈ 41 min • $$ • Quotes free
Auto AC & Heating Brake ServicesAuto Electrical
📞 (450) 646-6457 • Free quote • Verified
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Garage Marcel Bolduc
Longueuil • ≈ 6 km
GA
Garage Marcel Bolduc
1030 Av. Victoria, Longueuil, QC J4R 1P3, Canada, Longueuil
★ 4.3
168 Google reviews
Response ≈ 19 min • $ • Quotes free
Auto AC & Heating
📞 (450) 465-1969 • Free quote • Verified
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Garage Mécanique Longueuil
Longueuil • ≈ 2 km
GA
Garage Mécanique Longueuil
1600 Rue Soucy Local 103, Saint-Hubert, QC J4T 1A3, Canada, Longueuil
★ 4.3
31 Google reviews
Response ≈ 32 min • $ • Quotes free
Auto AC & Heating
📞 (438) 722-8818 • Free quote • Verified
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Groupe VF AUTO
Longueuil • ≈ 8 km
GR
Groupe VF AUTO
1616 Rue de Verchères, Longueuil, QC J4K 2Z7, Canada, Longueuil
★ 4.3
180 Google reviews
Response ≈ 43 min • $$$ • Quotes free
Auto AC & Heating Suspension & SteeringFord Repair
📞 (450) 928-1011 • Free quote • Verified
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Centre de mecanique ECONO
Longueuil • ≈ 6 km
CE
Centre de mecanique ECONO
2740 Chem. du Lac, Longueuil, QC J4N 1B8, Canada, Longueuil
★ 3.9
249 Google reviews
Response ≈ 55 min • $ • Quotes free
Auto AC & Heating Auto Cooling SystemVehicle Inspection
📞 (438) 809-5468 • Free quote • Verified
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APLUS Automotive Mechanics
Longueuil • ≈ 9 km
AP
APLUS Automotive Mechanics
660 Boulevard Curé-Poirier O, Longueuil, QC J4J 2H9, Canada, Longueuil
★ 3.6
278 Google reviews
Response ≈ 19 min • $$$ • Quotes free
Auto AC & Heating Brake ServicesSuspension & Steering
📞 (450) 651-5400 • Free quote • Verified
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Longueuil customer reviews

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

“Booked at lunch. Quote came back in 34 minutes with a real breakdown, not a guess. Dropped off the Civic, got SMS updates, picked it up same day. Zero phone tag.”

Jordan B. • Auto AC & Heating at R&A Auto Inc., Longueuil
★★★★★

“Finally a Longueuil shop that actually does diagnostics properly. Boommar showed verified reviews only — made the decision easy.”

Amelia S. • Diagnostics at Auto Service Rive-Sud
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Longueuil Pro – last 30 days
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Find a Best Auto AC & Heating in Longueuil, QC

Boommar lists 10 verified mechanics in Longueuil. 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 Longueuil? +
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

Montreal Quebec City Laval Gatineau Sherbrooke Lévis Saguenay Trois-Rivières

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