J & J Mobile Truck, Semi & Trailer Repair is a mobile repair company for large diesel trucks in the state of Michigan. We are on-call 24/7 and offer emergency road repair service! Quick response time for roadside Semi Truck Repairs. Our very competitive rates are the same regardless of the time of day or holidays. We do refrigeration repair including Thermo-King, Carrier and more. We also can help with Semi Tire repair, Trailer repair, custom made hydraulic hoses, and more. Give us a call!