Mas Construction, B General Building Contractor in Upper Lake, CA
Mas Construction operating as a sole owner holds an active California contractor license (CSLB #784048), valid through Feb 28, 2027. First issued in 2000, the license has been on the CSLB roster for 26 years. 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 Upper Lake, in Lake County, California.
- License Number
- 784048
- Issued
- Sep 7, 2000
- Status
- CLEAR
- Expires
- Feb 28, 2027
- Entity
- Sole Owner
- Surety
- American Contractors Indemnity Company
- Bond Number
- 100718472
- Effective
- Jan 27, 2023
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Jan 13, 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 Mas Construction licensed in California?
Yes. Mas Construction holds California Contractors State License Board license number 784048, which is active and in good standing. The license was first issued on September 7, 2000. It is valid through February 28, 2027.
What does Mas Construction specialize in?
Mas Construction is licensed for one CSLB classification: B General Building Contractor.
Where is Mas Construction headquartered?
Mas Construction is headquartered at 11407 Elk Mountain Road, Upper Lake, CA 95485, in Lake County, California.
Does Mas Construction have an active surety bond on file with CSLB?
Yes. Mas Construction has an active California contractor surety bond filed with American Contractors Indemnity Company.
Does Mas Construction carry workers' compensation coverage?
Mas Construction reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Mas Construction's contractor license?
You can verify Mas Construction's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=784048.
- License issuedSep 7, 2000
- Bond activeJan 27, 2023
- WC coverage startsJan 13, 2025
- License expiresFeb 28, 2027
- Red's Construction#710251Lower Lake·B General Building Contractor
- Cornerstone Cabinets#705819Lakeport·B General Building Contractor
- Golden Home Builders#702176Kelseyville·B General Building Contractor
- Monhoff Builders#699845Middletown·B General Building Contractor
- Rolfe Glen Const#692806Lakeport·B General Building Contractor
- Willy's Construction#685835Lakeport·B General Building Contractor
- Sterling Construction#686856Nice·B General Building Contractor
- Ullrich Mike Construction#668046Kelseyville·B General Building Contractor
Working a California job with Mas Construction, 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 Mas Construction? Claim or correct this profile