
Mobile repair for trucks, trailers, and RVs
Roadside Truck Repair Services in Flagstaff, AZ
A breakdown on I-40 or I-17 needs a technician, not just a tow.
Our emergency roadside assistance crews bring mobile diesel repair and diagnostics to your location, day or night.
Dispatch is answering
Day or night
Mobile Truck and RV Repair Across Northern Arizona
Between Flagstaff, Winslow, and the Grand Canyon, the nearest repair shop can be an hour or more away. That distance is exactly why we built our business around mobile truck repair instead of a fixed garage. Our crews have handled axle work, engine diagnostics, and roadside repair calls throughout the region since 2001, arriving with full diagnostic equipment day or night.
Whether it's a semi truck losing power on a grade near Williams or an RV with an electrical fault outside Sedona, our technicians arrive equipped to diagnose the issue and, in most cases, fix it on site. That means less time waiting and less money spent on unnecessary towing.
Commercial operations get the same standard of care as everyday drivers. Fleet dispatchers, owner-operators, and RV travelers all call the same number and get the same fast, honest response, backed by decades of hands-on experience with heavy duty truck repair.

Our Services
Our Roadside Repair Services
Every roadside repair call starts with an accurate diagnosis. Our trucks carry JPro and Pro-Link diagnostics so our technicians can pinpoint engine, transmission, and electrical faults on diesel equipment before a single part gets touched.
From there, we handle the physical repair work: axles, brakes, structural damage, and more, all without a flatbed unless a tow genuinely is the safer call.
Axle Repair
Bent axles, worn bearings, and damaged seals don't wait for a convenient time to fail. Our mobile axle repair covers trucks, trailers, and RVs, with truck axle repair and trailer axle repair handled right where you're parked whenever the damage allows it.
Commercial Truck Repair
Engine trouble, transmission issues, and electrical faults all fall under our commercial truck repair capability. Mobile commercial truck repair keeps a single rig or an entire fleet moving without the downtime of a shop appointment.
RV Roadside Repair
RVs run different systems than a standard truck, and our technicians know the difference. RV roadside repair covers electrical faults, plumbing failures, and mechanical breakdowns for travelers passing through Sedona, Williams, or the Grand Canyon corridor.
Semi Truck Repair
A stalled tractor trailer costs money by the hour. Our semi truck repair and tractor trailer repair services get diagnostics and parts to the truck fast, with mobile semi truck repair available anywhere along our northern Arizona coverage area.
Trailer Repair
Structural damage, brake system failures, and coupling issues all fall under our trailer repair scope. Mobile trailer repair means your trailer gets inspected and fixed on location, keeping your load and your schedule intact.

How our repair calls work
What to Expect When You Call for Roadside Truck Repair
When you call, we ask a few quick questions about your vehicle, location, and the problem you're seeing so the right technician and tools are dispatched the first time. From there, the process is straightforward.
- Dispatch confirms your location along I-40, I-17, or the surrounding highways and gives you an honest arrival estimate
- A technician arrives with diesel diagnostics, JPro and Pro-Link tools, and common parts already on the truck
- We diagnose the issue on site rather than guessing, whether it's an axle, an engine fault, or an electrical problem
- If the repair is roadside-safe, we complete it on the spot; if not, we explain your options before any work begins
- Roadside tire service and quick tire fixes are handled during the same visit when that's the actual problem
- You get a written estimate and a clear explanation of the work performed before you're back on the road
Common Questions
Roadside Repair Frequently Asked Questions
Here are the questions we hear most from truck drivers, fleet dispatchers, and RV owners calling us from the road.
Roadside assistance covers getting a stranded vehicle moving again, things like towing, fuel delivery, or a lockout. Roadside repair goes a step further: our technicians diagnose and fix the mechanical problem itself, whether that's an axle, an engine, or an electrical fault, so a tow isn't always necessary. Both fall under our emergency roadside assistance response, dispatched from the same call.
Yes. Our trucks carry JPro and Pro-Link diagnostics equipment, which lets our technicians read engine codes and identify diesel-specific problems in the field instead of guessing. Mobile diesel repair covers most engine, sensor, and electrical faults on commercial trucks without needing a shop bay.
In many cases, yes. Mobile axle repair covers bent axles, worn bearings, and damaged seals on trucks, and we handle trailer axle repair the same way when the trailer is parked in a safe location. If the damage is severe enough to require shop equipment, we'll tell you upfront rather than attempting a repair that won't hold.
We do. Our roadside repair coverage spans semi truck repair and tractor trailer repair for commercial operations, along with mobile RV repair for travelers heading through Flagstaff, Sedona, or the Grand Canyon area. The same technicians and diagnostic equipment support both.
Day or night
Get Your Truck, Trailer, or RV Back on the Road
A rig sitting on the shoulder isn't earning anyone money, and a family stuck in an RV isn't finishing their vacation. Call Roadside Repair LLC and we'll get a technician moving toward your location with the diagnostics and parts needed to fix it right there.