San Jose Lab
WESTPAK, Inc.
83 Great Oaks Blvd.
San Jose, California 95119
(408) 224-1300
San Diego Lab – Office Building
WESTPAK, Inc.
10326 Roselle St.
San Diego, CA 92121
(858) 623-8100
San Diego Lab – Ship To / Receiving
WESTPAK, Inc.
10346 Roselle St.
San Diego, CA 92121
Union City Lab
WESTPAK, Inc.
33439 Western Ave.
Union City, CA 94587
(800) 830-8021
Hours of Operation
San Jose, California
Office Hours Monday – Friday: 8:00 am to 5:00 pm
Shipping / Receiving Hours Monday – Friday: 8:00 am to 5:00 pm
San Diego, California
Office Hours Monday – Friday: 7:30 am to 4:00 pm
Shipping / Receiving Hours Monday – Friday: 7:30 am to 4:00 pm
Union City, California
Office Hours Monday – Friday: 8:30 am to 5:30 pm
Shipping / Receiving Hours Monday – Friday: 8:30 am to 5:30 pm
IMPORTANT DATES
WESTPAK will be closed during the following holidays:
2026 WESTPAK Holidays
01/01/26 – New Year’s Day
01/19/26 – Martin Luther King Jr. Day
02/16/26 – Presidents’ Day
05/25/26 – Memorial Day
07/04/26 – Independence Day
09/07/26 – Labor Day
11/26 – 11/27/26 – Thanksgiving
12/25 – 12/26/26 – Winter Holiday