Public CSLB records

Mastrian Constuction, B General Building Contractor in Lawndale, CA

License #540069·Sole Owner·Lawndale, Los Angeles County
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Summary

Mastrian Constuction operating as a sole owner holds an active California contractor license (CSLB #540069), valid through Aug 31, 2026. First issued in 1988, the license has been on the CSLB roster for 38 years. It carries a single CSLB classification: B — General Building Contractor. Records show an active surety bond on file with Atlantic Specialty Insurance Company and an exempt workers' compensation status (no employees on payroll). The business is based in Lawndale, in Los Angeles County, California.

Business Information
Address
4141 W 170 Street
Lawndale, CA 90266
License Details & Classifications
License Number
540069
Issued
Aug 30, 1988
Status
CLEAR
Expires
Aug 31, 2026
Entity
Sole Owner
Financial & Insurance Coverage
Contractor Bond
Surety
Atlantic Specialty Insurance Company
Bond Number
800213953
Effective
Feb 25, 2026
Status
Active
Workers' Compensation
Coverage
Exempt
Carrier
Policy Number
Effective
Sep 13, 2024
Expires
Review

This contractor warrants a closer look before contracting:

  • License expires in 47 days
  • Workers' comp listed as exempt
License StatusActive
Contractor BondOn file
Workers' CompensationActive

An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this

Frequently asked questions
Is Mastrian Constuction licensed in California?

Yes. Mastrian Constuction holds California Contractors State License Board license number 540069, which is active and in good standing. The license was first issued on August 30, 1988. It is valid through August 31, 2026.

What does Mastrian Constuction specialize in?

Mastrian Constuction is licensed for one CSLB classification: B General Building Contractor.

Where is Mastrian Constuction headquartered?

Mastrian Constuction is headquartered at 4141 W 170 Street, Lawndale, CA 90266, in Los Angeles County, California.

Does Mastrian Constuction have an active surety bond on file with CSLB?

Yes. Mastrian Constuction has an active California contractor surety bond filed with Atlantic Specialty Insurance Company.

Does Mastrian Constuction carry workers' compensation coverage?

Mastrian Constuction reports an exempt workers' compensation status, meaning the business has no employees on payroll.

How do I verify Mastrian Constuction's contractor license?

You can verify Mastrian Constuction's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=540069.

Activity Timeline
  1. License issuedAug 30, 1988
  2. WC coverage startsSep 13, 2024
  3. Bond activeFeb 25, 2026
  4. License expiresAug 31, 2026
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California lien & payment resources

Working a California job with Mastrian Constuction, or chasing an unpaid invoice? These free tools track your mechanics lien deadlines and rights under California Civil Code §§8200–8848.

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