Frank's Auto Service and Repair
- Vehicle
- DJ
- Fair
24 mechanics listed · 12 in Walnut Creek · 3 open weekends · all 24 rated 4.5+
Data verified October 16, 2026
Listed for drivers in and around Walnut Creek, CA, these 24 shops work on medium and heavy duty trucks. What each one says about fleet accounts, road service, inspections and hours comes from its own website; ratings and quotes come from public reviews.

Of the 24 mechanics we list here, 12 are in Walnut Creek itself and 12 come from towns including San Ramon (3, 11 mi), Oakland (2, 12 mi) and Concord (1, 5 mi). The mechanics on this page are rated from 4.5 to 5.0 across 4,169 reviews; 18 have 50 or more reviews. When customers rate these mechanics on specific qualities, they most often praise professionalism (95%), quality (81%) and value (72%). The topics that come up most in reviews of the mechanics on this page are "honest", "fair" and "communication". 3 are open on Saturdays. The services the mechanics on this page list most often on their websites are brake repair (3), fleet service (3), oil change (3), smog check (3) and radiator repair (2). 6 list staff certifications (ASE) and 16 have a BBB rating of A or A+. 22 have ten or more years of experience, the longest 74 years. 2 offer financing; 2 give free estimates; 7 are family- or locally-owned and 13 list coupons or special offers. 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.
3 of the 24 shops on this page run a weekend shift. Weekend slots are how a lot of fleets get preventive maintenance done without losing a working day, so they book out early. Parts counters keep shorter hours, which is the usual reason a Saturday job waits until Monday.