Wang David Lau, B General Building Contractor in Alhambra, CA
Wang David Lau operating as a sole owner holds an active California contractor license (CSLB #487377), valid through Feb 29, 2028. First issued in 1986, the license has been on the CSLB roster for 40 years. It carries a single CSLB classification: B — General Building Contractor. Records show an active surety bond on file with Western Surety Company and an exempt workers' compensation status (no employees on payroll). The business is based in Alhambra, in Los Angeles County, California.
- License Number
- 487377
- Issued
- Feb 20, 1986
- Status
- CLEAR
- Expires
- Feb 29, 2028
- Entity
- Sole Owner
- Surety
- Western Surety Company
- Bond Number
- 67332510
- Effective
- Mar 2, 2025
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Jan 12, 2026
- Expires
- —
This contractor warrants a closer look before contracting:
- Workers' comp listed as exempt
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Wang David Lau licensed in California?
Yes. Wang David Lau holds California Contractors State License Board license number 487377, which is active and in good standing. The license was first issued on February 20, 1986. It is valid through February 29, 2028.
What does Wang David Lau specialize in?
Wang David Lau is licensed for one CSLB classification: B General Building Contractor.
Where is Wang David Lau headquartered?
Wang David Lau is headquartered at P O Box 7529, Alhambra, CA 91802, in Los Angeles County, California.
Does Wang David Lau have an active surety bond on file with CSLB?
Yes. Wang David Lau has an active California contractor surety bond filed with Western Surety Company.
Does Wang David Lau carry workers' compensation coverage?
Wang David Lau reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Wang David Lau's contractor license?
You can verify Wang David Lau's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=487377.
- License issuedFeb 20, 1986
- Bond activeMar 2, 2025
- WC coverage startsJan 12, 2026
- License expiresFeb 29, 2028
- Padelford A J & Son INC#222840Artesia·B General Building Contractor
- Niesner Frank#227508Calabasas·B General Building Contractor
- Rand Engineering Company#215000Los Angeles·B General Building Contractor
- Seidner Construction CO#214890Glendora·B General Building Contractor
- Nadar INC#214554Pasadena·A General Engineering Contractor
- Los Angeles Air Conditioning INC#208872La Verne·B General Building Contractor
- Kahn Air Conditioning INC#206552Van Nuys·B General Building Contractor
- Eastside Construction CO INC#212643Downey·B General Building Contractor
Working a California job with Wang David Lau, 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 Wang David Lau? Claim or correct this profile