Locations
Building Materials Sand & Gravel Maintenance
Ready-Mix Administration Sales & Operations

Building Materials Division

Cotati/Rohnert Park

8150 Gravenstein Hwy.

Phone: 707-792-4695

Fax: 707-794-8722

Open  7:00a - 3:30p  M-F

8a - 2p on Saturdays

San Rafael

548 DuBois St.

Building Materials: 415-455-1575        Fax: 415-453-6429

Open 7:00a - 3:30p  M-F,  8a-2p on Saturdays

Ready-Mix Division

To Order Concrete: 800-779-5777

Portable Plants: 800-675-1511

Plant Locations

San Rafael: 548 Dubois St.San Rafael, CA 94901

Novato: 7552 Redwood Blvd., Novato, CA  94947

Petaluma: 400 Hopper St., Petaluma, CA  94952

Santa Rosa: 1534 Copperhill Parkway, Santa Rosa, CA 95403

Sonoma: 19725 Arnold Drive, Sonoma, CA 95476

Napa:  999 Kaiser Road, Napa, CA 94558

Cloverdale: 30022 Levee Road, Cloverdale, CA 95425

Sand & Gravel Division

Cloverdale Gravel Facility

30022 Levee Road

Cloverdale, CA 95425

Phone: 707-894-4425

Fax:707-894-3464

 

Bulk Deliveries/Dispatch

Phone: 707-792-8129

Fax: 707-794-8722

Administrative Offices

Main Office

181 Lynch Creek Way

Petaluma, CA 94954

PO Box 808044

Petaluma, CA 94975

Phone: 707-781-9000

Fax:707-781-9055

admin@shamrockmaterials.com

Maintenance Department

Central Shop Location

410 Hopper St.

Petaluma, CA 94952

Phone: 707-775-2715

Fax: 707-775-3915

Corporate Sales & Operations Office

 

Sales & Operations Office

400 Hopper St.

Petaluma, CA 94952

Operations:

 707-765-8560

Fax: 707-765-0459
Sales:

 800-675-1511

Fax: 707-765-8569
QC Dept:

 707-782-1743

Fax: 707-763-8924

E-mail: sales@shamrockmaterials.com