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Alvin Isaac
Live Chat and Sales Quote Preparation

E-mail is Support@EarthStoneRock.com
Phone is 510-255-6224

Alvin is a very educated and experienced computer programmer who works on the Live Chat function of our web site and handles data management behind the scenes.
Alvin is a graduate of the University of Santo Tomas where he earned his Bachelor of Science Major in Computer Science. One of his hobbies is developing a website as a portfolio. As a computer code programmer he has skills in platforms and frameworks such as PHP, Drupal, Wordpress, Javascript and other languages.
He also has skills in data processing, social media and other skills related to developing a website.
In his private life Alvin very talented singer performing at weddings and private events.

California Building Material Supply is divided into 4 operational units:
1. The Business Unit; of marketing, sales and delivery of materials throughout the USA and Canada.
2. The E-commerce Unit; web site development and management, social media content development and postings, Dodge Reports, Google analytics and other related fields.
3. Material Yard Sales; sales of bulk and palleted building and landscape materials from our growing material yard locations
4. Field Operations; material deliveries, decomposed granite installation, boulder and stone installation, bocce court installation and maintenance and other works.
Oliver is also responsible for assisting Emily Peralta our administrative manager through via phone, text, live video, E-mail. HE can help you with material samples, material and transportation quotes and placing orders.
Requests for quotes and bids should be sent to
E-mail is
Request for help with order status, invoices and purchase orders should be sent to Emily Peralta at
E-mail is Emily@EarthStoneRock.com

Oliver's Business Hours Are:
Monday -
7:00 am to 4:00 pm
Tuesday - 7:00 am to 4:00 pm
Wednesday - 7:00 am to 4:00 pm
Thursday - 7:00 am to 4:00 pm
Friday - 7:00 am to 2:00 pm

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

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.
Alvin Isaac - Live Chat