Mattson Plumbing Company
Mattson Plumbing Company operating as a sole owner is licensed in California under CSLB number 1048374. The license was first issued in 2018, putting the business at 8 years on the active CSLB roster. It carries a single CSLB classification: C-36 — Plumbing 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 Discovery Bay, in Contra Costa County, California.
- License Number
- 1048374
- Issued
- Dec 28, 2018
- Status
- CLEAR
- Expires
- Dec 31, 2026
- Entity
- Sole Owner
- Surety
- American Contractors Indemnity Company
- Bond Number
- 101008995
- Effective
- Sep 13, 2025
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Jan 21, 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 Mattson Plumbing Company licensed in California?
Yes. Mattson Plumbing Company holds California Contractors State License Board license number 1048374. The license was first issued on December 28, 2018. It is valid through December 31, 2026.
What does Mattson Plumbing Company specialize in?
Mattson Plumbing Company is licensed for one CSLB classification: C-36 Plumbing Contractor.
Where is Mattson Plumbing Company headquartered?
Mattson Plumbing Company is headquartered at 2150 Breaker Court, Discovery Bay, CA 94505, in Contra Costa County, California.
Does Mattson Plumbing Company have an active surety bond on file with CSLB?
Yes. Mattson Plumbing Company has an active California contractor surety bond filed with American Contractors Indemnity Company.
Does Mattson Plumbing Company carry workers' compensation coverage?
Mattson Plumbing Company reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Mattson Plumbing Company's contractor license?
You can verify Mattson Plumbing Company's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1048374.
- License issuedDec 28, 2018
- WC coverage startsJan 21, 2025
- Bond activeSep 13, 2025
- License expiresDec 31, 2026
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