Left Coast Trimworks Left Coast Trimworks

Serving Northern California

Mobile Boat & Auto upholstery built to last

Left Coast Trimworks provides convenient mobile custom marine and automotive upholstery for Sutter County, Yuba County, and surrounding Northern California. From boat seat repair and full marine interiors to automotive seats, headliners, panels, and custom trim, each project is built for a clean fit and durable finish.

Left Coast Trimworks logo

Marine & automotive upholstery

Custom upholstery for boats, cars, trucks, and specialty interiors.

Boat & Marine Upholstery

Boat seats, bow cushions, sun pads, engine covers, bolsters, side panels, foam repair, and full interior redesigns using marine-grade materials.

Automotive Upholstery

Seat repairs, custom seat covers, headliners, door panels, consoles, carpet, interior trim, and restoration work for cars and trucks.

Custom Interior Fabrication

Foam shaping, sculpted panels, French seams, double stitching, piping, inserts, embroidery-ready panels, and one-off interior details.

Before & after gallery

See the transformation.

Boat Seat Restoration

Coming Soon

Full Marine Interior

Coming Soon

Automotive Seat & Trim

Customer reviews

What customers say.

★★★★★

The new boat interior looks amazing! It updated the entire boat…so worth it

C. J.• Boat Upholstery

Pricing & estimates

Useful estimates without one-size-fits-all pricing.

Repair / Small Job

Custom Estimate

Multi-Panel / Seat Project

Photo Estimate

Complete Interior

Project Quote

How it works

From photos to finished upholstery.

1. Send Photos

Send overall and close-up photos.

2. Choose Direction

Review materials, colors, stitching, and repair needs.

3. Build & Fit

Patterning, foam work, cutting, sewing, and fitting.

4. Final Inspection

Check fit, seams, alignment, installation, and presentation.

Northern California service area

Local upholstery service for the Nor-Cal region.

Primary Service Area

Sutter County, Yuba County, Yuba City, Marysville, Live Oak, and surrounding Northern California.

Start a project

Request an upholstery estimate.

Call or email with photos, year/make/model, and what you want repaired or redesigned.