Cornerstone Construction Service, Inc.

is seeking certified and qualified DVBE subcontractors and/or suppliers to provide and install handrails and gates, fire alarm testing and painting, supply and install carpet, supply parking lot signs. Portable toilet/handwash station rental and temp. fence rental. All subcontractors must have California DIR #. This project covers three school sites and all interior work must be done between the dates of 12/22/2025 – 01/09/2026 at all sites. Proposals need to be received by 10a.m. on 10/07025 in order to be considered


PROJECT NAME:

DSA Certification of Older Portable Ratification

BID CONTRACT #:

Project No. 20-1207

AWARDING AGENCY:

Whittier City School District

PROJECT LOCATION:

10626 E. Orange Grove, Whittier, CA, 90601

BID DUE DATE:

10-07-2025 at 01:00 PM

OUTREACH COORDINATOR:

Kimberly Madden

TELEPHONE:

(909)985-6766

FAX:

(909) 985-6189

ADDRESS:

1845 W. 9th St, Upland, CA, 91786

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