Full Service Diesel and Fleet Service Repair

What We Service

  • Heavy trucks
  • Medium trucks
  • Light duty trucks
  • Touring coaches
  • Luxury motorhomes
  • Service Trucks

If it’s broken, needs a tune-up, a hitch, total rebuild or just routine maintenance we have the expertise to do the job right.

Call us or come by the shop and let’s see what we can do for you.

RV Service and Repair

Whether you need an oil change, an unexpected repair, or an upgrade to your RV or motorhome, you will receive first-class service using the highest quality parts.

Diesel Truck Service and Repair

We provide quick and accurate repairs on all makes and models of trucks – heavy, medium, and light duty.


To ensure your fleet vehicles stay on the road fully functioning and in compliance with the CHP Inspection Program, we offer regular service and maintenance.

Meet Our Owner

Jeff LaGrave

Jeff began working on cars in 1980 when he joined the US Army and spent time in Germany as a tank mechanic. Over the years he became an expert in the diesel repair industry, working on heavy equipment including tanks, dozers and tug boats…

Trusted by Top Companies Across The North Bay

Thanks guys for the great honest work. When anyone asks where to take their truck for repairs I will say with great pleasure Jeff’s Twin Oaks Garage you won’t be sorry.

Mike K, Petaluma, CA 

Our Location

Conveniently located one – straight, flat – mile off Highway 101 (Exit 476 east) on Old Redwood Highway, Jeff’s Twin Oaks Garage is an easily accessed location for your disabled vehicle whether it’s being towed in or limping into the shop.

Jeff’s Twin Oaks Garage

5745 Old Redwood Highway
Penngrove, CA 94951-8676

Phone: (707) 795-4803
Fax: (707) 795-4090

Jeff's Twin Oaks Garage

5745 Old Redwood Highway Penngrove, CA 94951-8676

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