Monday - Friday 7:00 a.m. - 5:00 p.m. | Saturday by appointment

Santa Rosa, Petaluma, Cotati, Novato, and all of Sonoma, Marin, and Napa. . .

Your best source of expert diesel and automotive repair is Jeff's Twin Oaks Garage, Penngrove, California.


Ford 6.0L Repair

Jeff’s Twin Oaks Garage is the best place in the San Francisco Bay Area to get your Ford 6.0L Diesel repaired and refitted for years of trouble-free service.


Fleet Service Experts:

To insure your fleet vehicles stay on the road fully functioning and in compliance with BIT, we offer fleet service contracts with full ongoing regular service and maintenance.

Diesel Trucks at Jeff's Twin Oaks Garage


RV & Motorhome Care:

Jeff and his team are Master Technicians for Recreational Vehicles, Coaches, Vans, Class A, Class C, and custom Caravans of all types.

Whether your home on wheels needs routine maintenance, an oil change, or a major overhaul, Jeff and his staff have the facility and the expertise to get the job done quickly and accurately.

Don’t take the chance of breaking down on the way to your favorite park, have Jeff and his crew give your Motorhome a thorough inspection and travel the roads with confidence.


Welcome to Jeff's Twin Oaks Garage

Sonoma and Marin Counties' full service diesel and automotive repair. We are the heavy, medium, and light duty trucks, RV, and farm equipment repair and maintenance specialists.

Jeff LaGrave and his team of master mechanics at Jeff’s Twin Oaks Garage in Penngrove, California, specialize in the repair and maintenance of diesel and automotive vehicles of all kinds, makes, and models.Jeff with the shop bosses

A crain in for repair

Heavy, medium, and light duty diesel trucks, tractors, touring coaches, luxury motorhomes, and bio-diesel magic buses - if it’s broken, needs a tune-up, a hitch, or just routine maintenance we have the expertise to do the job right.

Easy to Find, Conveniently Located:

Conveniently located three – straight, flat – The Magic Busmiles 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.

5745 Old Redwood Highway
Penngrove, CA 94951-8676
Phone: (707) 795-4803
Fax: (707) 795-4090

View Jeff's Twin Oaks Garage in a larger map.

“Wonderful service from great guys. Jeff and his team are magnificent.”

~ Laura
A satisfied customer