Building Services / System Maintenance Incorporated

Concord · Contra Costa County · CA

VERIFIED

Bestopedia verdict

100 / 100 Bestopedia Trust Score

California’s contractor board lists Building Services / System Maintenance Incorporated in CLEAR standing. A contractor bond is on file, and workers’ compensation coverage is current.

License standing
30 / 30
Years licensed
20 / 20
Contractor bond
20 / 20
Workers' comp
20 / 20
Business structure
10 / 10

How the Trust Score is calculated →

The verified record

CSLB license
#870303 verify on CSLB ↗
Classifications
B, C-10, C-27, C-39, D-63
Years licensed
20.5 years since 01/03/2006
Contractor bond
$25,000 AMERICAN CONTRACTORS INDEMNITY COMPANY
Workers’ comp
Current WCF SELECT INSURANCE COMPANY
Business type
Corporation
Qualifying principal
Sam Iii Martinovich, Chris Van Krieg
Address of record
2575 Stanwell Drive Ste 250, Concord, CA 94520

Frequently Asked Questions

Is Building Services / System Maintenance Incorporated a licensed Roofing contractor in California?

Yes. Building Services / System Maintenance Incorporated holds California CSLB contractor license #870303 with a C-39 (Roofing) classification. Current CSLB status: CLEAR.

What work is Building Services / System Maintenance Incorporated licensed to perform?

License #870303 carries C-39 (Roofing), plus additional classifications: B, C10, C27, D63.

Is Building Services / System Maintenance Incorporated bonded?

Yes. Building Services / System Maintenance Incorporated carries contractor's bond #SC6344664 for $25,000 through AMERICAN CONTRACTORS INDEMNITY COMPANY.

Does Building Services / System Maintenance Incorporated carry workers' compensation insurance?

Yes. Workers' compensation insurance is on file with WCF SELECT INSURANCE COMPANY, with a policy expiration of 09/01/2026.

How long has Building Services / System Maintenance Incorporated held its contractor license?

License #870303 was originally issued on 01/03/2006, approximately 20 years ago (as of July 2026).

Where is Building Services / System Maintenance Incorporated located?

Building Services / System Maintenance Incorporated is based in Concord, Contra Costa County, CA 94520.