Mast Chris S Company, C-43 Sheet Metal Contractor in El Cerrito, CA
Mast Chris S Company operating as a sole owner holds an active California contractor license (CSLB #767127), valid through Aug 31, 2027. First issued in 1999, the license has been on the CSLB roster for 27 years. It carries a single CSLB classification: C-43 — Sheet Metal 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 El Cerrito, in Contra Costa County, California.
- License Number
- 767127
- Issued
- Aug 10, 1999
- Status
- CLEAR
- Expires
- Aug 31, 2027
- Entity
- Sole Owner
- Surety
- Atlantic Specialty Insurance Company
- Bond Number
- 800233578
- Effective
- Apr 8, 2026
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Aug 25, 2025
- 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 Mast Chris S Company licensed in California?
Yes. Mast Chris S Company holds California Contractors State License Board license number 767127, which is active and in good standing. The license was first issued on August 10, 1999. It is valid through August 31, 2027.
What does Mast Chris S Company specialize in?
Mast Chris S Company is licensed for one CSLB classification: C-43 Sheet Metal Contractor.
Where is Mast Chris S Company headquartered?
Mast Chris S Company is headquartered at 5617 Macdonald Avenue, El Cerrito, CA 94530, in Contra Costa County, California.
Does Mast Chris S Company have an active surety bond on file with CSLB?
Yes. Mast Chris S Company has an active California contractor surety bond filed with Atlantic Specialty Insurance Company.
Does Mast Chris S Company carry workers' compensation coverage?
Mast Chris S Company reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Mast Chris S Company's contractor license?
You can verify Mast Chris S Company's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=767127.
- License issuedAug 10, 1999
- WC coverage startsAug 25, 2025
- Bond activeApr 8, 2026
- License expiresAug 31, 2027
- N V Heathorn CO#761659Concord·A General Engineering Contractor
- All Around Seamless Gutter CO#775444Clayton·C-43 Sheet Metal Contractor
- Air Time Mechanical INC#736604Concord·C-20 HVAC Contractor
- Mccarthy Sheetmetal#726429Concord·C-43 Sheet Metal Contractor
- Dynasty Roofing INC#659417Pleasant Hill·C-39 Roofing Contractor
- Air Design Heating & Cooling#604264Danville·C-20 HVAC Contractor
- Building Services#537679Walnut Creek·B General Building Contractor
- Western Sierra INC#957460Pacheco·B General Building Contractor
Working a California job with Mast Chris S Company, 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 Mast Chris S Company? Claim or correct this profile