Semi Truck Repair in Longmont, CO & Surrounding Areas
On-Site Semi & Diesel Repair — Keep Your Rig Rolling Without the Downtime
A broken-down truck doesn’t just cost money — it costs time, deliveries, and opportunities. That’s why Josh’s Mobile Mechanic Service brings professional semi truck repair directly to you — whether you’re parked at home, at a job site, or stuck roadside.
No towing. No waiting in a shop line. Just fast, reliable diesel service done at your location.


Semi Truck & Diesel Repair Services We Offer
✔ Engine Diagnostics & Troubleshooting
✔ Battery, Starter & Alternator Replacement
✔ Air Brake & Hydraulic Brake Repairs
✔ Fuel System & Filter Replacement
✔ Cooling System Repairs (Radiators, Hoses, Water Pumps)
✔ Electrical & Lighting Repairs
✔ Suspension & Steering Repairs (as applicable on-site)
✔ Roadside Assistance During Business Hours
If you’re unsure whether your issue can be fixed on-site, just call — most repairs can.
Mobile vs. Shop — Why Owner-Operators & Fleets Prefer Us
| Josh’s Mobile Mechanic | Traditional Repair Shop |
|---|---|
| No Towing or Transport Needed ✅ | Requires Getting the Truck to a Shop ❌ |
| Fast Response — You Don’t Wait in Line ✅ | Scheduling Delays & Long Downtimes ❌ |
| Direct Communication with the Mechanic ✅ | Service Advisors & Extra Fees ❌ |
| Fair Pricing & Honest Work ✅ | Shop Minimums & Markups ❌ |
Ideal for Owner-Operators & Small Fleets
Whether you’re running one truck or a whole fleet, Josh helps you avoid lost time and costly shop visits.
He works with:
- Construction Haulers & Service Trucks
- Owner-Operators
- Hotshot Drivers
- Box Trucks & Delivery Rigs
- Farm & Agriculture Trucks
Get Back on the Road — Call Josh Today
Don’t let downtime drain your paycheck. Whether it’s a breakdown or scheduled repair, Josh is ready to get your truck back to work.

