Professional Auto and Truck Service

Professional Auto and Truck Service is a truck repair shop based at 900 East Patrick Street, bldg# 5B, in Frederick, Maryland. It is a fixed shop, so you bring the RV to it rather than having it come to you. Its site describes the location as "Conveniently located off I-70 exit 56 with easy access from both Route 15 and 270," which helps if you are coming off the interstate with a rig.

Its main work is truck repair: engine and transmission repair and replacement, rear differentials, clutches, ABS brake systems, electrical diagnostics, and DPF and diesel emission service. It also lists air conditioning, PM service, DOT inspections, Maryland State Inspection and engine rebuilds. Its list of vehicles ends with "Light, Medium, Heavy Duty Truck Repair, Dump Trucks, Buses, and RVs," so RVs are on the list. Beyond that one line, no RV-specific work, RV type or RV brand is posted, so check which RV systems it works on before you drive over.

It does not publish a trip fee or hourly rate, so ask for a price on your job before you leave the rig. Its hours run from 08:00 am to 05:00 pm, and no after-hours or emergency service is posted.

The shop has been "Family Owned and Operated Since 2004," and no technician or owner is named on its site. Its site also names no RVTI or NRVIA certification. Those certifications are the usual sign that a shop has trained on RVs and not only trucks, so they are worth asking about.

This is a good fit for an owner near Frederick, Maryland who can bring the RV to the shop during its 08:00 am to 05:00 pm hours and who checks first whether it works on RVs.