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Gurr Auto
“They did a fantastic inspection on the vehicle and provided an in-depth report about what maintenance and repairs my car is in need of, or due for based on the maintenance schedule.”
Best Car Tune-Up near St. Thomas, ON
We have one technician in St. Thomas on file, but only the highest-rated make our list, and it did not make it; the 15 here come from London (13, 24 km), Thomas (1, 0 km) and Delaware (1, 23 km).
4 open weekends · all 15 rated 4.5+
Data verified October 16, 2026
Vaughan Auto Service
“My vehicle is older they did a thorough inspection and sent me a detailed report before doing any work on the car”
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Wortley Auto Service
“Always appreciate their advice, a good chat, and of course a visit with Scout.”
M RIK Automotive Werks LTD
“If you're looking for a reliable mechanic who knows what they're doing, offers fair prices, and gets the job done quickly, I highly recommend this shop.”
5 & 10 Auto Repair
“He takes the time to patiently explain what's wrong with your vehicle—sometimes using video diagrams—so you know exactly what you're paying for.”
Bre's Auto
“I've known Bre for years and have always trusted him to do my various vehicles, he tells you straight up what it might be and is always honest and fair with the work and pricing.”
Listed for drivers in and around St. Thomas, ON, these 15 shops handle tune-up work and running faults. What each one says about diagnostics, warranties and service specials comes from its own website; ratings and quotes come from public reviews.
Area overview: St. Thomas, ON
The 15 technicians on this page are rated from 4.5 to 5.0 across 3,345 reviews; 12 have 50 or more reviews. The topics that come up most in reviews of the technicians on this page are "price", "honest" and "fair". 4 are open on Saturdays. 1 offers financing; 2 are family- or locally-owned and 2 list coupons or special offers. We have a website on file for 6 of the technicians on this page; 4 publish a contact page; 2 list a public email and 1 takes bookings online. We count these figures across the technicians on this page; distances are straight-line, and hours and prices change, so confirm the details with the technician before you visit.
Which shops listed for St. Thomas open on Saturdays or Sundays?
4 of the 15 shops here show Saturday or Sunday hours. Plugs and filters fit neatly into a Saturday. A chase for an intermittent misfire does not, since it can need the car overnight to catch the fault happening from cold.
Hartley Automotive Inc
“Excellent service, found the issue quickly and repaired same day, will return if necessary for more repairs, definitely recommend Hartley Automotive.”
Maz Auto Tech
“Heat shield had dropped and Maz Auto Tech gave me an appointment with same day service within 15 minutes.”
Jim's Auto Service
“Jim & his team are honest experts, efficient & overall great service!”
Technical Automotive Centre
“Just a while ago I came to get my breaks done and for being my first time there I was amazed of their wonderful hospitality excellent service, honest pricing, and very professional staff.”
Adelaide Motors Sales & Repairs Inc
“They are good mechanics and are willing to help fix your car issues, but by appointment only”
Auto Master
“Called in last minute mid day and they got me in for a quick fix.”
Rick Blake's Automotive
“Rick called me back quick with a quote, and got the job done exactly when he said he would”
Adelaide Collision Inc.
“Everything was done professionally and efficiently, and we were especially pleased with the price and quality of the work.”
G & T Automotive
“His prices are beyond fair, and he still squeezed me in even though his shop was overflowing with customers' vehicles.”
Why these companies made our list
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