Best Car Tune-Up in Ajax, ON
15 technicians listed · 14 in Ajax · 6 open weekends · 13 rated 4.5+
Data verified October 28, 2026
Brotech Automotive Service
Master Tune-Up & Complete Auto
Sena Auto Automotive Services
MB Master
Andre's Auto Repairs
Listed for drivers in and around Ajax, 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: Ajax, ON
Of the 15 technicians we list here, 14 are in Ajax itself and 1 comes from Pickering (5 km). The technicians on this page are rated from 4.0 to 5.0 across 921 reviews; 6 have 50 or more reviews and 13 are rated 4.5 or higher. The topics that come up most in reviews of the technicians on this page are "price", "honest" and "professional". 6 are open on Saturdays and 1 on Sundays. 2 have ten or more years of experience, the longest 29 years. We have a website on file for 2 of the technicians on this page; 2 publish a contact page and 2 list a public email. 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 Ajax open on Saturdays or Sundays?
6 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.