INTERLOCK PLUMBING
License #1149890·Corporation·ANTIOCH, Contra Costa County
Summary
INTERLOCK PLUMBING operating as a corporation is licensed in California under CSLB number 1149890. It carries a single CSLB classification: C-36 — Plumbing Contractor. Records show an active surety bond on file with AMERICAN CONTRACTORS INDEMNITY COMPANY and active workers' compensation coverage from NATIONAL SPECIALTY INSURANCE COMPANY. The business is based in ANTIOCH, in Contra Costa County, California.
Business Information
License Details & Classifications
- License Number
- 1149890
- Issued
- Feb 3, 2026
- Status
- CLEAR
- Expires
- Feb 29, 2028
- Entity
- Corporation
Classifications
Financial & Insurance Coverage
Contractor Bond
- Surety
- AMERICAN CONTRACTORS INDEMNITY COMPANY
- Bond Number
- 101031911
- Effective
- Jan 23, 2026
- Status
- Active
Workers' Compensation
- Coverage
- Workers' Compensation Insurance
- Carrier
- NATIONAL SPECIALTY INSURANCE COMPANY
- Policy Number
- NXT43HKKYY00WC
- Effective
- Jan 11, 2026
- Expires
- Jan 11, 2027
License StatusActive
Contractor BondOn file
Workers' CompensationActive
Activity Timeline
- WC coverage startsJan 11, 2026
- Bond activeJan 23, 2026
- License issuedFeb 3, 2026
- WC expiresJan 11, 2027
- License expiresFeb 29, 2028