Calvert Builders, B General Building Contractor in San Mateo, CA
Calvert Builders operating as a corporation holds an active California contractor license (CSLB #1139966), valid through Jul 31, 2027. First issued in 2025, the license has been on the CSLB roster for 1 year. It carries a single CSLB classification: B — General Building Contractor. Records show an active surety bond on file with American Contractors Indemnity Company and an exempt workers' compensation status (no employees on payroll). The business is based in San Mateo, in San Mateo County, California.
- License Number
- 1139966
- Issued
- Jul 7, 2025
- Status
- CLEAR
- Expires
- Jul 31, 2027
- Entity
- Corporation
- Surety
- American Contractors Indemnity Company
- Bond Number
- 100962828
- Effective
- May 26, 2025
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- May 25, 2025
- Expires
- —
Recently licensed: the CSLB license is active and in good standing, issued within the last 2 years.
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Calvert Builders licensed in California?
Yes. Calvert Builders holds California Contractors State License Board license number 1139966, which is active and in good standing. The license was first issued on July 7, 2025. It is valid through July 31, 2027.
What does Calvert Builders specialize in?
Calvert Builders is licensed for one CSLB classification: B General Building Contractor.
Where is Calvert Builders headquartered?
Calvert Builders is headquartered at 3822 Colegrove St, San Mateo, CA 94403, in San Mateo County, California.
Does Calvert Builders have an active surety bond on file with CSLB?
Yes. Calvert Builders has an active California contractor surety bond filed with American Contractors Indemnity Company.
Does Calvert Builders carry workers' compensation coverage?
Calvert Builders reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Calvert Builders's contractor license?
You can verify Calvert Builders's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1139966.
- WC coverage startsMay 25, 2025
- Bond activeMay 26, 2025
- License issuedJul 7, 2025
- License expiresJul 31, 2027
- Huettig & Schromm INC#129060Menlo Park·A General Engineering Contractor
- O'keeffe's INC#101981Brisbane·B General Building Contractor
- Raiser Construction CO INC#215490San Mateo·B General Building Contractor
- Signature Construction Company INC#219324Burlingame·B General Building Contractor
- Rudolph & Sletten INC#198069Menlo Park·A General Engineering Contractor
- Cawc Waterproofing & Restoration#255484San Mateo·B General Building Contractor
- Culligan Management Company INC#254368San Mateo·B General Building Contractor
- Pribuss Engineering INC#251241So San Francisco·B General Building Contractor
Working a California job with Calvert Builders, or chasing an unpaid invoice? These free tools track your mechanics lien deadlines and rights under California Civil Code §§8200–8848.
- California preliminary notice deadline calculatorFind your 20-day deadline and the lien rights at risk.
- Do I need a preliminary notice in California?Answer a few questions to see if the 20-day notice applies.
- Did I lose my California lien rights?Check whether your mechanics lien window has passed.
- Unpaid construction invoice in CaliforniaYour options and deadlines for collecting on a California job.
Own Calvert Builders? Claim or correct this profile