351 E Antietam St. Hagerstown, MD 21740

Truck Shop:  Monday-Friday 8am - 5pm

15021 Molly Pitcher Hwy., Greencastle, PA 17225

351 E Antietam St. Hagerstown, MD 21740

Truck Shop:  Monday-Friday 8am - 5pm

15021 Molly Pitcher Hwy.

Greencastle, PA 17225

Semi Truck & Trailer Repair in Hagerstown, MD and the Surrounding Areas

Shop Hours: Monday-Friday 8am-5pm

Our full service semi truck shop in Hagerstown, MD is open Monday through Friday 8 am to 5 pm.


You can rely on our big rig mechanics to handle any and all repairs required by your semi truck or trailer, including fleet vehicle maintenance. From engine repair and transmission diagnostics to brakes, exhaust and suspension or trailer repair, we do it all and we do it well. Call our Hagerstown semi truck repair shop to learn more about our services or to request an appointment. We look forward to serving you.

  • Semi Truck Repair
  • Semi Truck Trailer Repair
  • Big Rig Engine Repair
  • Big Rig Transmission Repair
  • Semi Truck Brake Repair
  • Trailer Gate & Trailer Door Repair
  • Suspension & Differential Repairs
  • Exhaust & Fuel Systems

Full Service Semi Truck Repair


When you visit us for semi truck repair in Hagerstown, you can trust our diesel mechanics to conduct any service necessary to return your vehicle to a safe and reliable condition. Additionally, we work fast, without sacrificing quality, because we know that downtime is bad for your bottom line. We service all parts and systems of tractor trailers. This includes steering, suspension, brakes, engines, transmissions, hubs, axles, differentials, exhaust, air conditioning (AC), fuel systems and more. We have invested in modern computer diagnostic equipment that we combine with our years of hands-on experience to quickly and accurately identify and fix semi truck troubles. In addition, we offer welding and fabrication services, allowing us to fix issues many other shops can’t.

Semi Truck Engine & Transmission Repair


Our diesel mechanics in Hagerstown are equipped with the tools and knowledge to perform any big rig engine repair or semi truck transmission repair service. We stay up to date with modern running gear and understand the intricacies of these heavy duty engines and transmissions. If you suffer any trouble with your diesel engine, such as hard starting, performance loss, turbo failure or oil leaks, we can help. In addition, if your truck doesn’t want to get through the gears, call our big rig transmission shop in Hagerstown for expert repair.

Big Rig Brake Repair


Your truck’s brakes are among its most important systems. If you experience any issues slowing down, loaded or empty, be sure to contact us if you’re in the area. We offer comprehensive semi truck brake repair in Hagerstown, including air brake repair and trailer brake repair services. Our big rig brake jobs include brake pad replacement, rotor replacement, drum services and brake line repair. Our goal is to ensure your vehicle is completely safe to operate when it leaves our semi truck shop.

Semi Truck Maintenance


Like any vehicle, maintenance is key to keeping your truck on the road, running smoothly and to avoid costly breakdowns or repairs. At our big rig repair shop, we offer comprehensive semi truck maintenance in Hagerstown to keep your vehicle in top condition. Our experienced technicians provide a range of services, including oil changes, belt and hose inspections, fluid checks, and more, to ensure your semi-truck is running at optimal performance. With our routine maintenance services, you can extend the lifespan of your vehicle and avoid unexpected downtime.

Semi Truck Trailer Repair


We offer comprehensive semi-truck trailer repair services to keep your vehicle in top condition. Our experienced technicians provide a range of services, including  suspension services, electrical repair, and trailer brake work, to ensure your semi-truck trailer is operating in a safe and smooth manner. We also offer refrigeration trailer repair, ensuring your load remains cool. In addition, we conduct welding and fabrication allowing us to offer services like lift gate repair, swing door repair, overhead door repair and trailer skin repair services. No matter what your rig or its trailer needs, we can help.

Blue Gray Towing provides full service semi truck repair in Hagerstown for all makes and models of trucks, including Peterbilt, International, Mack, Volvo and Freightliner. If your rig needs service, give us a call at (301) 241-7461 to schedule Hagerstown truck repair. Whether you’re local or just passing through, our nearby diesel mechanics look forward to providing you with expert services for your big rig.

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