Home > Contact Us
Contacting California Building Material Supply and Our Business Hours
Toll free customer service
800 215 7372
Urgent Needs Cell phone
626 263 0531
Antelope Valley Yard
7656 East Avenue T - 8
Littlerock, CA 93543
Requests for quotes and bids should be sent to:
Oliver Llaban: Sales@EarthStoneRock.com
Chris Gilcrest: Chris@EarthStoneRock.com
Request for help with order status, invoices, and purchase orders should be sent to:
Emily Peralta - Emily@EarthStoneRock.com
Alvin Issac: Support@EarthStoneRock.com

Request for help with login, and other website related issues should be sent to:
Aiman Khan - aimankhan@EarthStoneRock.com

Request for help with accounting issues for purchase orders, invoices and bills:


Rock Yard Address
7656 East Avenue T 8
Littlerock CA 93543

Acton Yard
632 Sierra Highway,
Acton CA 93510

Mailing - No physical inventory here
4408 Vahan Court
Lancaster CA 93536

Business Hours -
Monday - 5:30 am to 7:00 pm
Tuesday - 5:30 am to 7:00 pm
Wednesday - 5:30 am to 7:00 pm
Thursday - 5:30 am to 7:00 pm
Friday - 5:30 am to 7:00 pm
Saturday - 5:30 am to 7:00 pm
Sunday - Church and Family

We provide customer service via phone, text, live video, E-mail and meeting with you on your site in most areas of California.

Our standard payment terms for transport are COD.
Joint check and Net 15 and 30 day terms are available for commercial accounts on approved credit and preliminary lien information provided at time of order.