Our mechanics will help you set up a proper maintenance schedule to ensure you don't end up stuck on the side of the road!
Our team will diagnose your situation, satisfy your expectations and win your confidence.
We are your trusted source for any auto repair needs!

Complete Automotive Repairs, Engine Rebuilding & Exchanging

Welcome To Cosgrove Auto Repair

Cosgrove Auto Repair & Machine, in Thorold, Ontario, is a locally owned and operated automotive repair shop dedicated to excellence in every aspect of business.

“We’ve got a team that will diagnose your situation, satisfy your expectations and win your confidence.”

Ken Cosgrove – Owner

With more than 50 years of combined auto experience and 25 years of racing experience, Ken Cosgrove’s locally owned and operated automobile repairing and machine shop provides a wide variety of services to get you back on the road in no time.

Offering three service bays and complete engine rebuilding machine shop, Cosgrove Auto Repair is able to look after your entire vehicle needs – from minor repairs to complete engine removal, rebuilding and replacement. No wonder he is a leading supplier for quality machining to local auto shops.

Years of Experience

Who better to TRUST your vehicle repairs to than a respected engine builder with years of experience!

  • State-of-the-Art Machining Shop Cosgrove Auto Repair & Machine, Ontario, St Catharines 
  • High Performance Engine Specialists
  • MTO Inspection Shop
  • Classic Auto Repair
  • Top Notch Automotive Repairs 

Proud Members of the E.R.I Group.


Combined 50 Years' Experience

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With more than 50 years of combined auto experience, coupled with 25 years of personal racing experience by owner Ken Cosgrove, it’s pretty safe to say that the qualified staff at Cosgrove Auto Repair & Machine has seen – and fixed – it all. 

With a strong commitment to ensuring that one of your most important investments, your car, is safe and reliable, the team at Cosgrove has got your back.

Whether you’re gearing up for a long road trip, or have a long commute to work, you can rest assured that a car serviced at Cosgrove’s is a car that you’ll feel good in.

Combined 50 Years' Experience

As a proud member of the E.R.I Group, Ken Cosgrove has access to all types of engine parts. The standards of the E.R.I Group ensure that its members adhere to strict professional standards.

Keeping your car maintained is one of the best ways to help save you money in the long run. The team at Cosgrove’s can help you set up a proper maintenance schedule so you don’t get stuck on the side of the road – or worse – break down in the middle of it.

“Awesome place to get work done, done right the first time!”

Franks Motorsports – Thorold

Contact Cosgrove Auto Repair in St. Catharines today for professional service you can trust and rely on.


Certified & Licensed Crew

Ken Cosgrove’s custom performance engine building and racing experience, combined with an expert certified and licensed crew, guarantee precision work, quality parts and reliable service. Whether it is changing a headlight, performing a tune-up or completely rebuilding an engine, the Cosgrove team invites you to enjoy top-notch “better than dealership” service at an affordable rate.

Contact Cosgrove Auto Repair & Machine for professional and efficient auto repairs in St. Catharines, Ontario.

5% Discount for Seniors & Students.

Our Services

  • Tune-ups
  • Brakes
  • Steering
  • Suspension
  • Cooling Systems
  • Electrical/Electronic Systems Diagnostics
  • Fuel Injection
  • MTO Safety Inspection Shop
  • Same Day Service on Most Repairs
  • State-of-the-Art Computerized Equipment
  • One Stop For All Mechanical Repairs and Rebuilding
  • Parts Experts
  • Marine Inboard Engine Rebuilding


Contact Info

61 Ormond St., N. Thorold, ON L2V 1Z3



Monday – Friday      8:00am – 5:00pm
Saturday/Sunday    CLOSED