Chestnut Auto Repairs & Towing
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24 mechanics listed · 5 in Union City · 1 open 24/7 · 11 open weekends · 20 rated 4.5+
Data verified October 16, 2026
Listed for drivers in and around Union City, 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, 5 are in Union City itself and 19 come from towns including Daly City (6, 25 mi), Redwood City (4, 13 mi) and Pleasanton (2, 9 mi). The mechanics on this page are rated from 3.9 to 5.0 across 2,876 reviews; 14 have 50 or more reviews and 20 are rated 4.5 or higher. When customers rate these mechanics on specific qualities, they most often praise professionalism (92%), quality (82%) and value (82%). 1 is open around the clock; 11 are open on Saturdays and 3 on Sundays. The services the mechanics on this page list most often on their websites are fleet services (3), brake repair (2), brakes (2) and wheel alignment (2). 1 shows a license on its website; 5 list staff certifications (ASE) and 12 have a BBB rating of A or A+. 23 have ten or more years of experience, the longest 66 years. 2 offer emergency or roadside call-outs; 1 offers financing; 2 give free estimates; 6 are family- or locally-owned and 9 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.
5 of the 24 shops sit inside Union City; the rest come from other towns. Truck shops need land, long approaches and highway access, so they end up on the edge of town. Drivers already plan around that.