Mike's Auto Service
“I am travelling and they accomodated my tire totation and brake inspection same day.”
Best Transmission Repair Shops in Cornwall, ON
10 mechanics listed · 6 in Cornwall · all 10 rated 4.5+
Data verified October 16, 2026
Ceasor's Auto
“I needed an emergency tire fix, they did it in 30 minutes and charged me probably less than half of what any other place would.”
Paul's Auto Body
“Always a great experience and fantastic work I highly recommend Paul's to anyone!”
Marcel's Service Center
“Awseome guy and does amazing work would recommend him 1000 percent to everyone”
R N'C Automotive Repair
“Great work, great prices, trustworthy and honest!”
Total Collision
“Great work fast service 5 star.”
Listed for drivers in and around Cornwall, ON, these 10 shops work on transmissions. What each one says about rebuilds, warranty terms and the brands it handles comes from its own website; ratings and quotes come from public reviews.
Area overview: Cornwall, ON
6 of the 10 mechanics we list are based in Cornwall; the other 4 serve Cornwall from towns including Long Sault (6 km), Summerstown (14 km) and Monkland (22 km). The mechanics on this page are rated from 4.6 to 5.0 across 253 reviews; 1 has 50 or more reviews. The topics that come up most in reviews of the mechanics on this page are "price" and "fair". We have a website on file for 1 of the mechanics on this page. We count these figures across the mechanics on this page; distances are straight-line, and hours and prices change, so confirm the details with the mechanic before you visit.
J&E Truck Service
“I would highly recommend them, to anybody that would need their services.”
Cj's Auto Inc.
“Helped me fix an oil change issue after visiting three other mechanic shops.”
Monkland Automotive Centre
“Great mechanics, great people, great pricing and great service.”
Theoret Auto Body
“David the owner is VERY easy to talk to, down to earth, very fairly priced, is crew are great guys to deal with if David isn't available at the moment.”
Why these companies made our list
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