BUILDING SERVICES / SYSTEM MAINTENANCE INCORPORATED
General Building Contractor license 870303 issued by the California Contractors State License Board. Status shown as of August 17, 2026.
This license is active. It is valid through January 31, 2028, 532 days from today, according to the most recent CSLB public file.
| License holder | BUILDING SERVICES / SYSTEM MAINTENANCE INCORPORATED |
|---|---|
| Business name | BUILDING SERVICES / SYSTEM MAINTENANCE INCORPORATED |
| License type | General Building Contractor |
| License number | 870303 |
| Status today | Active |
| Expiration date | January 31, 2028 |
| City | Concord |
| County of record | Contra Costa |
| Phone on file | (925) 688 1234 |
| Classifications | B, C10, C27, C39, D63 |
| Board status | CLEAR |
| Contractor bond | $25,000 |
| Issuing authority | California Contractors State License Board |
| First seen in public file | August 17, 2026 |
| Last confirmed | August 17, 2026 |
How to confirm this yourself
This page reproduces the CSLB public license file, which the agency republishes daily. Before you hire anyone, confirm the record at the source and ask the contractor for proof of insurance separately, since licensing and insurance are not the same thing and the state file does not cover insurance.
Verify at CSLB → File a complaint
There are 3,597 licensed general building contractors on record in Contra Costa County. Compare them all →