CORNERSTONE ENGINEERING CONTRACTORS
License
- Status
- CLEAR
- First issued
- April 14, 2026
- Expires
- April 30, 2028
- Entity
- Corporation
- Address of record
- 7461 WINDROSE DR, Highland, CA 92346
- Phone of record
- (909) 725 3500
Contractor bond
- Surety
- AMERICAN CONTRACTORS INDEMNITY COMPANY
- Bond number
- 101052168
- Amount
- $25,000
- Effective
- March 30, 2026
Workers’ compensation
This contractor has certified to the state that they have no employees, so they carry no workers’ compensation policy. The exemption covers only the license holder. If anyone else works on your project — a crew, a helper, a day laborer — they are not covered, and an injury on your property can become your liability. Ask who will physically be on site.
Are they licensed for your job?
A California contractor may only contract for work their classification covers. Pick the job and this reads the license on file against it.
Licensed to perform
A contractor may only contract for work within their classifications. See all 11 licensed general engineering contractors in Highland.
People on this license
| Name | Title | Since | Through |
|---|---|---|---|
| CITLAU LIZBETH | Chief Executive Officer/President | April 14, 2026 | Current |
| CITLAU SCOTT MATTHEW | Responsible Managing Officer | April 14, 2026 | Current |
Verified status badge
Put this on your website or in a bid packet. It reads the state’s record live every time someone loads it, so it is never a screenshot of a good day. Free, and you don’t need to claim this listing to use it.
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Is this your license?
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Source: California Contractors State License Board public records. Coverage lapse is evaluated against today’s date; all other fields reflect the latest weekly CSLB file. Confirm at the CSLB’s official record before signing a contract.