About OnSite Truck & Equipment Repair

Welcome to OnSite Truck & Equipment Repair, your trusted partner for expert truck maintenance and repair in Fontana, CA. Located at 10975 Hemlock Avenue, our family-owned shop is dedicated to providing top-notch service tailored to the needs of truck owners and operators in Southern California. Since taking ownership in 2018, Sean and his team have been committed to maintaining a personal touch, prioritizing strong, first-name-basis relationships with each of our clients.

Diesel mechanic performing heavy duty truck repair services in Fontana, CA

Why Choose OnSite Truck & Equipment Repair?

Our approach is simple: treat every customer like family and every truck as if it were our own. This philosophy ensures that you receive personalized, attentive service every time you visit. We understand that your truck is crucial to your livelihood, which is why we offer a comprehensive range of services for Freightliner, Peterbilt, Kenworth, Volvo, and Western Star trucks.

At OnSite Truck & Equipment Repair, comfort and convenience are part of the package. Enjoy our air-conditioned lounge with complimentary coffee, snacks, and refreshments while you wait. Need to catch up on work or stay connected? Free WiFi is available; just ask for the password! Our facility includes 12 internal bays and three access doors, all designed to accommodate your truck's needs efficiently, handled by our team of eight skilled mechanics.

Located in Fontana, CA, we serve a wide area including Chino Hills, City of Industry, Claremont, Jurupa Valley, Palm Springs, Pomona, Riverside, Upland, and beyond. Whether you’re from Los Angeles County, Orange County, San Bernardino County, or anywhere in the Inland Empire, you can rely on us for all your truck repair needs.

Operational Hours & Contact Information

We are open Monday through Friday from 7 AM to 4 PM. Weekends and after-hours services are available by appointment to accommodate your busy schedule. Contact us today at (951) 588-8000 to schedule your service or discuss your truck repair needs.

At OnSite Truck & Equipment Repair, we don’t just fix trucks—we build lasting relationships with our customers. Whether you’re facing an unexpected breakdown or need routine maintenance, you can count on us for professional, timely, and effective service. Visit us today and experience the difference dedication makes!

What They're Saying About Us

See why our customers consider OnSite Truck & Equipment Repair the go-to repair shop in Fontana, CA and the surrounding areas!

Best truck repair in town!! Broke down on the side of the freeway - they sent a tech to me and he took my truck apart and had another technician bring him the part to replace! Quick, easy, efficient and super nice. Thanks Kacie, Maui and Vanessa!!

Freddy Daniel Miranda Silva

Very professional and great work done. Definitely have a returning customer with me and my trucks

Christopher Van Egmond

It was a privilege having your tech Payne work on our company equipment. He goes above and beyond every time and has excellent customer service skills. I look forward to Payne handling our account more regularly.

Jeff Brown

I took my personal truck to Onsite to get new tires. Working with Kacie she is professional. The Onsite team did a great job on the installation.

Joshua Shafor

My dad went in to get his truck fixed and this place did not disappoint. Adael was very friendly, walked him through the whole process and all associated costs. As a Spanish speaker, it’s nice to know people still care and take the time to help instead of trying to make a quick dollar. His truck was ready to go within the timeline he was given & he left a happy customer. Thank you!

Jazmine Vazquez

Contact Us

Need roadside assistance, have questions, or want to schedule your truck or trailer in for a service or repair? Get in touch, we're open Monday through Friday from 7:00am to 4:00pm.

Our Hours

Monday - Friday
7:00 AM to 4:00 PM

Saturday - Sunday
Appointments Only

24/7 Roadside assistance

Speak to a Service Advisor Now!