Cornerstone Construction Service Inc

Concrete in Upland, CA. B C-8 C29

Cornerstone Construction Service Inc appears in California license records as a concrete contractor based in Upland, CA. The record lists a B| C-8| C29 license (#980455) with status “Clear”. It was first issued on 2013-01-17, 13 years ago. It is listed as valid through 2027-01-31. A contractor bond of $25,000 is on file. Workers' comp on file: Workers' Compensation Insurance with INSURANCE COMPANY OF THE WEST. It carries 3 classifications on record, including B, C-8, C29.

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About this contractor

License type
B| C-8| C29
License #
980455
License status
Clear
Classification
B| C-8| C29
License issued
2013-01-17
License expires
2027-01-31
Bond
$25,000
Workers' comp
Workers' Compensation Insurance · INSURANCE COMPANY OF THE WEST
Classifications on record
B
C-8
C29
Record source
California contractor license record
Service area
Upland, CA 91786
Phone
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Email
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Information sourced from public state license records — not yet verified by the business owner. Always confirm credentials before hiring.

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Check license #980455 on the California CSLB lookup and the BBB the day you hire; status can change after Bidroom's last import (2026-04-09).

Frequently asked about Cornerstone Construction Service Inc

What does Cornerstone Construction Service Inc do?

Cornerstone Construction Service Inc is a concrete contractor based in Upland, California. Their license classification is B| C-8| C29. Listed specialties: B, C-8, C29.

Is Cornerstone Construction Service Inc licensed?

Yes. Cornerstone Construction Service Inc holds California CSLB license #980455 (status: Clear). Verify the current status on California CSLB before hiring.

Where is Cornerstone Construction Service Inc located?

Cornerstone Construction Service Inc is based in Upland, CA 91786.

How do I contact Cornerstone Construction Service Inc?

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How do I get a quote from Cornerstone Construction Service Inc?

The fastest way is to post your project on Bidroom — Cornerstone Construction Service Inc and up to 2 other verified concrete contractors in Upland can bid on it, and every quote includes itemized pricing + a written scope of work.

Is Cornerstone Construction Service Inc verified on Bidroom?

Not yet. This listing was created from public California license records but hasn't been claimed by the owner. The license info above is from official records, but the business hasn't confirmed its services, hours, or current availability with us yet.

This record in Upland

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