Holliday Rock Company, Inc. ready-mix concrete plant in Westminster, CA
Westminster Plant 20 · serving Westminster, CA 92683-5301 (Orange County)
NRMCA-certified
Holliday Rock Company, Inc. (Westminster Plant 20) is an NRMCA-certified ready-mix concrete plant serving Westminster, CA and nearby ZIP areas. Request a ready-mix concrete quote for your pour (concrete strength, approximate size, pour date, and notes like slump or site access) below.
Certification
NRMCA cert #35685
Listed as certified when last checked 2026-07-03 · expires 2028-03-05
Contact
(909) 982-1553
Location is ZIP-area approximate; confirm exact address with the plant.
Available strengths (PSI), slump, and admixtures aren't verified here. Tell us your spec and we'll confirm with the plant. Estimates only.
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Source: NRMCA Currently Certified Plants directory. Ready Mix Concrete is an independent directory of NRMCA-certified ready-mix concrete plants and is not affiliated with Holliday Rock Company, Inc..