Boommar. Find Mechanics
Add Listing
BOOMMAR / ON / St. Thomas / Auto AC & Heating

Auto AC & Heating Shops in St. Thomas, ON

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

✓ Verified Shops ✓ Online Booking ✓ Real Reviews
Trade Tech Mechanical Services Inc.
St. Thomas • ≈ 2 km
TR
Trade Tech Mechanical Services Inc.
12 Barrie Blvd, St Thomas, ON N5P 4B9, Canada, St. Thomas
★ 5.0
30 Google reviews
Response ≈ 31 min • $ • Quotes free
Auto AC & Heating Auto Cooling SystemAuto Mechanic
📞 (519) 631-5810 • Free quote • Verified
View Profile
TruMechanic Truck Services Ltd
St. Thomas • ≈ 8 km
TR
TruMechanic Truck Services Ltd
66 Progress Dr, St Thomas, ON N5P 4G5, Canada, St. Thomas
★ 5.0
60 Google reviews
Response ≈ 30 min • $$$ • Quotes free
Auto AC & Heating Truck MechanicDiesel Truck Mechanic
📞 (647) 674-1777 • Free quote • Verified
View Profile
Elgin Tirecraft St. Thomas
St. Thomas • ≈ 5 km
EL
Elgin Tirecraft St. Thomas
10 Sparling Rd, St Thomas, ON N5P 4A6, Canada, St. Thomas
★ 4.9
261 Google reviews
Response ≈ 22 min • $$$ • Quotes free
Auto AC & Heating Tires & WheelsTires & Wheels
📞 (519) 637-2382 • Free quote • Verified
View Profile
Gastech Solutions Inc.
St. Thomas • ≈ 6 km
GA
Gastech Solutions Inc.
45 Progress Dr, St Thomas, ON N5P 4G4, Canada, St. Thomas
★ 4.9
530 Google reviews
Response ≈ 28 min • $$$ • Quotes free
Auto AC & Heating Auto Cooling SystemAuto Mechanic
📞 (519) 633-5106 • Free quote • Verified
View Profile
St Thomas Tire Service Ltd
St. Thomas • ≈ 10 km
ST
St Thomas Tire Service Ltd
905 Talbot St, St Thomas, ON N5P 1E6, Canada, St. Thomas
★ 4.9
579 Google reviews
Response ≈ 55 min • $$ • Quotes free
Auto AC & Heating Tires & WheelsTires & Wheels
📞 (519) 631-3542 • Free quote • Verified
View Profile
Fixed Right Automotive Inc
St. Thomas • ≈ 9 km
FI
Fixed Right Automotive Inc
165 Edward St, St Thomas, ON N5P 4B4, Canada, St. Thomas
★ 4.8
119 Google reviews
Response ≈ 23 min • $ • Quotes free
Auto AC & Heating Auto MechanicTruck Mechanic
📞 (519) 633-1633 • Free quote • Verified
View Profile
Gurr Auto
St. Thomas • ≈ 6 km
GU
Gurr Auto
845 Talbot St, St Thomas, ON N5P 1E5, Canada, St. Thomas
★ 4.8
315 Google reviews
Response ≈ 22 min • $$ • Quotes free
Auto AC & Heating Auto MechanicDiesel Truck Mechanic
📞 (519) 637-9861 • Free quote • Verified
View Profile
Ron's Auto Service
St. Thomas • ≈ 10 km
RO
Ron's Auto Service
255 Edward St, St Thomas, ON N5P 4A9, Canada, St. Thomas
★ 4.8
88 Google reviews
Response ≈ 54 min • $$$ • Quotes free
Auto AC & Heating Engine RepairEuropean & Speciality Cars
📞 (519) 633-6130 • Free quote • Verified
View Profile
The Mufflerman
St. Thomas • ≈ 8 km
TH
The Mufflerman
904 Talbot St, St Thomas, ON N5P 1E2, Canada, St. Thomas
★ 4.7
158 Google reviews
Response ≈ 47 min • $$$ • Quotes free
Auto AC & Heating Oil Change & LubeBrake Services
📞 (519) 631-7050 • Free quote • Verified
View Profile
Factory Muffler
St. Thomas • ≈ 8 km
FA
Factory Muffler
210 Talbot St, St Thomas, ON N5P 1A9, Canada, St. Thomas
★ 4.6
134 Google reviews
Response ≈ 51 min • $$$ • Quotes free
Auto AC & Heating Suspension & SteeringExhaust System
📞 (519) 633-3630 • Free quote • Verified
View Profile
The Auto Guys
St. Thomas • ≈ 4 km
TH
The Auto Guys
135 S Edgeware Rd, St Thomas, ON N5P 4C4, Canada, St. Thomas
★ 4.6
193 Google reviews
Response ≈ 25 min • $$$ • Quotes free
Auto AC & Heating Auto MechanicBrake Services
📞 (519) 631-7117 • Free quote • Verified
View Profile
Century Service
St. Thomas • ≈ 9 km
CE
Century Service
175 S Edgeware Rd, St Thomas, ON N5P 4C4, Canada, St. Thomas
★ 4.5
94 Google reviews
Response ≈ 37 min • $$ • Quotes free
Auto AC & Heating Auto ElectricalAuto Lights & Signals
📞 (519) 633-5000 • Free quote • Verified
View Profile
Great Canadian Oil Change
St. Thomas • ≈ 8 km
GR
Great Canadian Oil Change
1025 Talbot St, St Thomas, ON N5P 3R6, Canada, St. Thomas
★ 4.5
148 Google reviews
Response ≈ 31 min • $$ • Quotes free
Auto AC & Heating Oil Change & LubeBrake Services
📞 (226) 956-0653 • Free quote • Verified
View Profile
The Car Shop
St. Thomas • ≈ 7 km
TH
The Car Shop
239 Wellington St, St Thomas, ON N5R 2S6, Canada, St. Thomas
★ 4.5
105 Google reviews
Response ≈ 37 min • $$ • Quotes free
Auto AC & Heating Auto ElectricalVehicle Inspection
📞 (519) 633-2277 • Free quote • Verified
View Profile
Showing 14 mechanics • Load more
Online booking workflow

St. Thomas bookings,
zero phone tag.

STEP 01
Search

Filter St. Thomas shops by service, rating, distance, open now.

14 results • verified
STEP 02
Request Booking

Send vehicle + service details. Get a firm quote or pick a slot.

Avg reply 42m
STEP 03
Shop Approves

Owner confirms time, price, and bay availability. One tap.

Calendar & SMS sync
STEP 04
Appointment Confirmed

You get confirm + reminders + live status tracking.

Stripe receipts
St. Thomas customer reviews

Real bookings, real reviews

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

“Friendly staff, excellent service, and more than fair price! Thanks to Nic, Bob and the team at The Auto Guys!”

A. Chuck Ellison • Auto AC & Heating at The Auto Guys, St. Thomas
★ ★ ★ ★ ★

“I really like this place.I've had to do some work for me.A few times always happy”

Fred Wray • Auto AC & Heating at Elgin Tirecraft St. Thomas, St. Thomas
★ ★ ★ ★ ★

“While in a pinch for a part, Tony and his colleague stayed around late to help me get something that I likely would not have found otherwise in town. This wasn't a money maker for them, Tony just offered to be a good guy, and made my night much easier. Character matters in these industries, and theirs shined through tonight.”

Jack • Auto AC & Heating at Trade Tech Mechanical Services Inc., St. Thomas
★ ★ ★ ★ ★

“Nice people that work there”

Nancy Parsons • Auto AC & Heating at Fixed Right Automotive Inc, St. Thomas
For shop owners

Get More Customers
Through Boommar

St. Thomas drivers searched “auto mechanic” 8,400 times last month. Claim your listing, turn searches into bookings.

• Online Booking
• Lead Tracking
• Review Management
• Listing Analytics
Claim Your Listing View St. Thomas pricing
St. Thomas Pro – last 30 days
+41
booking requests
4.8★
avg rating
31m
median reply
92%
show-up rate
Calendar sync • Stripe • SMS reminders • Review automation

Find a Best Auto AC & Heating in St. Thomas, ON

Don't leave your Auto AC & Heating to chance. Browse 14 trusted mechanics in St. Thomas, 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 St. Thomas? +
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

Other Services in St. Thomas

Auto Mechanic Diesel Truck Mechanic Truck Mechanic Oil Change & Lube Brake Services Tires & Wheels Auto Detailing Auto Body & Paint

Popular Cities

Toronto Vancouver Calgary Edmonton Ottawa Winnipeg