About Us

Trusted Mobile Diesel Truck Repair Since Day One

Nearly Four Decades of Diesel Repair Expertise

Dallas Heavy Duty Service was built on one straightforward idea: bring the mechanic to the truck, not the truck to the mechanic. For 37 years, that mobile-first approach has shaped everything we do. When a commercial vehicle goes down, the last thing an owner-operator or fleet manager needs is the added cost and delay of a tow. Our team drives to your location, whether that is a roadside breakdown, a fleet yard, or a job site, and gets to work on-site.

We work with a wide range of customers across the DFW area, including independent owner-operators, regional trucking companies, logistics and delivery fleets, and construction businesses with heavy equipment. Our services cover routine oil changes and inspections, brake service, preventative maintenance, advanced diagnostics, engine and transmission issues, electrical problems, hydraulic repairs, and emergency roadside response. Whatever the job, we show up prepared.

Every repair we perform is meant to last. We focus on honest assessments, transparent pricing, and clear communication so customers know exactly what is being done and why. Uptime matters to your bottom line, and we take that seriously on every call.

Mobile diesel technician repairing heavy duty commercial truck

When a truck is sitting idle, your business feels it immediately. Lost loads, missed deadlines, and unplanned towing expenses add up fast. The mobile model we have operated for 37 years was designed specifically to cut those losses short. Instead of waiting for a shop appointment or paying to haul a disabled truck across town, you get a certified technician dispatched to your exact location. We work around your schedule and your operation, not the other way around.

For fleet managers, that scheduling flexibility is especially valuable. We can coordinate planned maintenance visits at your yard during off-peak hours, reducing disruption to daily routes. For drivers caught on the road, our emergency response is available around the clock, including weekends and holidays. Whether the situation calls for a quick roadside fix or a more involved repair, the team arrives with the tools, parts, and experience to handle it without unnecessary delays.

Customer Reviews

SEE WHAT OUR CUSTOMERS SAY!

What Our Customers Say

Built Around Reducing Costly Truck Downtime

Our technicians are certified, experienced diesel mechanics who receive ongoing training to stay current with the latest engine systems, diagnostic technology, and repair methods. We use advanced diagnostic equipment on-site and source high-quality OEM or equivalent parts for every job. That means repairs are done right the first time, without cutting corners to save a few minutes. We service a wide variety of commercial truck makes and models, so no matter what your fleet runs, our team has the background to handle it.

Good repair work also means good communication. From the moment we arrive, we keep customers informed about what we find, what the repair involves, and how long it will take. We believe that kind of honesty is what builds long-term working relationships with DFW fleets and owner-operators who count on us regularly.

Service That Covers the Whole DFW Region

Our shop serves customers across a 60-mile radius from Dallas, covering a broad stretch of the DFW metro area and surrounding communities. That includes cities like Irving, Garland, and many other locations throughout the region. We come to you, whether that means your fleet yard, a truck stop, a warehouse loading dock, or the side of a highway. You do not need to figure out how to get your truck to us.

This region-wide reach is what allows us to support fleets with multiple locations, drivers working long regional routes, and businesses spread across the greater Dallas area. Our goal is simple: show up wherever your trucks are and get them back to work as quickly and safely as possible. Geographic distance is rarely a barrier when you give our team a call.

Why Fleets Choose Our Mobile Repair Team

Fleet managers and owner-operators choose our team for reasons that go beyond the convenience of on-site service. Transparent pricing means no surprise invoices. Certified technicians mean the work is done correctly the first time. Emergency truck repair is available around the clock, including weekends and holidays, so unexpected breakdowns do not have to become multi-day disruptions.

Dallas Heavy Duty Service is fully licensed, bonded, and insured, giving customers added confidence in every job we take on. Preventative maintenance programs are available for fleets that want to stay ahead of problems rather than react to them. If you are looking for a dependable mobile diesel repair partner in the DFW area, we are ready to talk through what your operation needs.