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Engine Repair Shops in St. Thomas, ON

Find trusted engine repair services in St. Thomas. Compare prices, read reviews, and book online.

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Trade Tech Mechanical Services Inc.
St. Thomas • ≈ 6 km
TR
Trade Tech Mechanical Services Inc.
12 Barrie Blvd, St Thomas, ON N5P 4B9, Canada, St. Thomas
★ 5.0
30 Google reviews
Response ≈ 52 min • $ • Quotes free
Engine Repair Auto AC & HeatingAuto Cooling System
📞 (519) 631-5810 • Free quote • Verified
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TruMechanic Truck Services Ltd
St. Thomas • ≈ 9 km
TR
TruMechanic Truck Services Ltd
66 Progress Dr, St Thomas, ON N5P 4G5, Canada, St. Thomas
★ 5.0
60 Google reviews
Response ≈ 57 min • $$$ • Quotes free
Engine Repair Truck MechanicDiesel Truck Mechanic
📞 (647) 674-1777 • Free quote • Verified
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Elgin Tirecraft St. Thomas
St. Thomas • ≈ 3 km
EL
Elgin Tirecraft St. Thomas
10 Sparling Rd, St Thomas, ON N5P 4A6, Canada, St. Thomas
★ 4.9
261 Google reviews
Response ≈ 35 min • $ • Quotes free
Engine Repair Tires & WheelsTires & Wheels
📞 (519) 637-2382 • Free quote • Verified
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Gastech Solutions Inc.
St. Thomas • ≈ 10 km
GA
Gastech Solutions Inc.
45 Progress Dr, St Thomas, ON N5P 4G4, Canada, St. Thomas
★ 4.9
530 Google reviews
Response ≈ 30 min • $$ • Quotes free
Engine Repair Auto Cooling SystemAuto Mechanic
📞 (519) 633-5106 • Free quote • Verified
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St Thomas Tire Service Ltd
St. Thomas • ≈ 2 km
ST
St Thomas Tire Service Ltd
905 Talbot St, St Thomas, ON N5P 1E6, Canada, St. Thomas
★ 4.9
579 Google reviews
Response ≈ 15 min • $$ • Quotes free
Engine Repair Tires & WheelsTires & Wheels
📞 (519) 631-3542 • Free quote • Verified
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Fixed Right Automotive Inc
St. Thomas • ≈ 4 km
FI
Fixed Right Automotive Inc
165 Edward St, St Thomas, ON N5P 4B4, Canada, St. Thomas
★ 4.8
119 Google reviews
Response ≈ 17 min • $ • Quotes free
Engine Repair Auto MechanicTruck Mechanic
📞 (519) 633-1633 • Free quote • Verified
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Gurr Auto
St. Thomas • ≈ 7 km
GU
Gurr Auto
845 Talbot St, St Thomas, ON N5P 1E5, Canada, St. Thomas
★ 4.8
315 Google reviews
Response ≈ 41 min • $$$ • Quotes free
Engine Repair Auto MechanicDiesel Truck Mechanic
📞 (519) 637-9861 • Free quote • Verified
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Ron's Auto Service
St. Thomas • ≈ 8 km
RO
Ron's Auto Service
255 Edward St, St Thomas, ON N5P 4A9, Canada, St. Thomas
★ 4.8
88 Google reviews
Response ≈ 45 min • $$$ • Quotes free
Engine Repair Auto AC & HeatingEuropean & Speciality Cars
📞 (519) 633-6130 • Free quote • Verified
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The Mufflerman
St. Thomas • ≈ 10 km
TH
The Mufflerman
904 Talbot St, St Thomas, ON N5P 1E2, Canada, St. Thomas
★ 4.7
158 Google reviews
Response ≈ 18 min • $$ • Quotes free
Engine Repair Oil Change & LubeBrake Services
📞 (519) 631-7050 • Free quote • Verified
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Factory Muffler
St. Thomas • ≈ 2 km
FA
Factory Muffler
210 Talbot St, St Thomas, ON N5P 1A9, Canada, St. Thomas
★ 4.6
134 Google reviews
Response ≈ 50 min • $ • Quotes free
Engine Repair Suspension & SteeringExhaust System
📞 (519) 633-3630 • Free quote • Verified
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The Auto Guys
St. Thomas • ≈ 10 km
TH
The Auto Guys
135 S Edgeware Rd, St Thomas, ON N5P 4C4, Canada, St. Thomas
★ 4.6
193 Google reviews
Response ≈ 36 min • $ • Quotes free
Engine Repair Auto MechanicBrake Services
📞 (519) 631-7117 • Free quote • Verified
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Century Service
St. Thomas • ≈ 10 km
CE
Century Service
175 S Edgeware Rd, St Thomas, ON N5P 4C4, Canada, St. Thomas
★ 4.5
94 Google reviews
Response ≈ 36 min • $ • Quotes free
Engine Repair Auto ElectricalAuto Lights & Signals
📞 (519) 633-5000 • Free quote • Verified
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Great Canadian Oil Change
St. Thomas • ≈ 6 km
GR
Great Canadian Oil Change
1025 Talbot St, St Thomas, ON N5P 3R6, Canada, St. Thomas
★ 4.5
148 Google reviews
Response ≈ 55 min • $$ • Quotes free
Engine Repair Oil Change & LubeBrake Services
📞 (226) 956-0653 • Free quote • Verified
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The Car Shop
St. Thomas • ≈ 3 km
TH
The Car Shop
239 Wellington St, St Thomas, ON N5R 2S6, Canada, St. Thomas
★ 4.5
105 Google reviews
Response ≈ 24 min • $$$ • Quotes free
Engine Repair Auto ElectricalVehicle Inspection
📞 (519) 633-2277 • Free quote • Verified
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St. Thomas customer reviews

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Verified Reviews for Engine Repair
★ ★ ★ ★ ★

“Absolutely the BEST place for tires and other car repairs. Gary and Rob are the most personable, kind, honest and knowledgeable you'll ever find...5 STARS is not enough...should be 10+”

Don Speckeen • Engine Repair at Elgin Tirecraft St. Thomas, St. Thomas
★ ★ ★ ★ ★

“They stand behind their products and are reasonably priced.”

Iain • Engine Repair at Century Service, St. Thomas
★ ★ ★ ★ ★

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

Fred Wray • Engine Repair at Elgin Tirecraft St. Thomas, St. Thomas
★ ★ ★ ★ ★

“Good job, I'm happy”

Sophear Chiv • Engine Repair at Gastech Solutions Inc., St. Thomas
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Find a Best Engine Repair in St. Thomas, ON

Don't leave your Engine Repair 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 Auto Engine Problems

Neglected oil changes causing internal sludge buildup and bearing wear
Overheating due to coolant leaks, failed thermostats, or water pump failure
Worn or fouled spark plugs causing misfires and poor combustion
Timing belt or chain failure leading to catastrophic valve damage
Carbon buildup on intake valves reducing airflow and performance
Failing head gaskets allowing coolant and oil to mix internally

Critical Signs Your Auto Engine Needs Repair

Check Engine light is on or flashing on the dashboard
Engine is knocking, pinging, or making metallic rattling sounds
Significant loss of power during acceleration or climbing hills
Excessive white, blue, or black smoke from the exhaust tailpipe
Visible oil or coolant leaks pooling under the vehicle
Engine is overheating or the temperature gauge reads in the red zone

Engine Repair Services Available

Engine Diagnostics

OBD-II scanning and advanced live data analysis

Engine Tune-Up

Spark plugs, ignition coils, filters, and sensor replacements

Head Gasket Replacement

Resealing the engine block to cylinder head joint

Timing Belt/Chain Service

Preventive replacement before catastrophic failure

Engine Rebuild

Complete disassembly, machining, and reassembly with new internals

Engine Replacement

Installing a remanufactured or used replacement engine

Engine Repair Tips

Never ignore a flashing Check Engine light—it indicates active damage to the catalytic converter or engine internals
Follow the manufacturer's timing belt replacement interval exactly (usually 100,000 to 160,000 km)
Use the correct grade of engine oil specified in your owner's manual
Monitor your temperature gauge regularly, especially in heavy summer traffic
Address small oil leaks before they become major engine failures
Get a compression test done if your engine has over 200,000 km to assess internal wear

Frequently Asked Questions

How much does engine repair cost in St. Thomas? +
Minor repairs like spark plugs or sensors cost $150-$500. Head gasket replacement runs $1,500-$3,000. A complete engine rebuild costs $3,000-$6,000+, while a replacement engine with installation ranges from $4,000-$8,000+.
Is it worth rebuilding an engine vs. replacing it? +
If the block and heads are in good condition, a rebuild is often more cost-effective and can result in a like-new engine. If there's severe damage (cracked block, spun bearings), a remanufactured replacement may be more practical.
How long does an engine rebuild take? +
A complete engine rebuild typically takes 2 to 4 weeks, depending on parts availability, machining requirements, and the shop's workload.
What causes a head gasket to fail? +
The most common cause is engine overheating. When the engine exceeds its designed temperature, the head gasket material warps and fails, allowing coolant and oil to mix or leak externally.

Engine Repair 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

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