Speedway Transmissions
“Tops in his trade good business honest mechanic speedway puts it on the poll (P1) gets job done right every time.”
Best Trailer Repair in Ontario, CA
15 experts listed · 7 in Ontario · 7 open weekends · 7 rated 4.5+
Data verified October 16, 2026
ATI Commercial Truck & Trailer Repair
“I am very satisfied with this mechanic, they do things very quickly and they are involved in their own work and it has a reasonable price.”
South America Food Trucks
“Looked at the photos an wish I would have gone with these guys they built a trailer that looked similar to the one I had built only there's is SUPER CLEAN AN PROFESSIONALLY BUILT ,no half stepping or cheap materials.”
Quality Truck Electric Inc
“Stan is the man with plan at quality truck electric.”
South Pacific Truck and Trailer Repair
“Pacific has been doing my alignment my truck for the last 10 years quality work and dependable and also rebushing are suspension on are trailers”
Lalo's Mobile Trailer Repair
“He's a great guy and didn't stop till he knew it was good to go.”
Listed for drivers in and around Ontario, CA, these 15 shops repair and service trailers. What each says about axles, brakes, wiring, welding and commercial inspections comes from its own website; ratings and quotes come from public reviews.
Area overview: Ontario, CA
7 of the 15 experts we list are based in Ontario; the other 8 serve Ontario from Fontana (9 mi), Pomona (9 mi) and Riverside (14 mi). The experts on this page are rated from 4.1 to 4.8 across 692 reviews; 6 have 50 or more reviews and 7 are rated 4.5 or higher. 6 are open on Saturdays and 1 on Sundays. 3 have a BBB rating of A or A+. Domain records put 3 websites of the experts on this page at ten or more years old; the oldest dates from 2008. 1 offers financing; 1 is family- or locally-owned and 1 lists coupons or special offers. We have a website on file for 6 of the experts on this page; 4 publish a contact page and 2 list a public email. We count these figures across the experts on this page; distances are straight-line, and hours and prices change, so confirm the details with the expert before you visit.
Which shops listed for Ontario open on Saturdays or Sundays?
7 of the 15 shops keep weekend hours. That matters for boat and horse trailers, since the fault usually shows up on the trip and the trip is on a Saturday. Parts counters often keep shorter weekend hours than the service bays, so ask about both.
DLT Fleet Services Inc
“Picked up plates with no problems.”
Another Mobile Fleet Service
“Best customer service in town, fair pricing, quality work.”
JB Fleet Solutions
“Have been dealing with John for 2 years now and am very happy with there work.”
P & R Fleet Services
“Awesome customer service, great people and speedy service.”
Prime Truck and Trailer Repair
“Did me a HUGE a favor - my truck popped a low voltage code and they were willing to let me swing in, diagnosed a bad alternator, located the part and replaced it - all within two hours time.”
TB Diesel Inc.
“Got us the part we needed when no one else could, saved us fom sitting for a month!”
G V Trans Inc
“Got us in quick, diagnosed problem, repaired problem and got us back on the road quickly.”
Humberto's Mobile Welding
“Great job very quick work great price for job done thank you for ur quick service....”
RS Repair & Custom Trailers Inc
“Helped me fix my problem on their time without charging me .”
Why these companies made our list
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