Dettmer Construction Company

Brisbane · San Mateo County · CA

Verified

Bestopedia verdict

93 / 100 Bestopedia Trust Score

California’s contractor board lists Dettmer Construction Company with a license standing of CLEAR. A contractor bond is on file, and workers’ compensation coverage is current.

License standing
25 / 25
Clean record
15 / 15
Track record
25.6 / 30
License continuity
10 / 10
Workers' comp
9 / 12
Contractor bond
8 / 8

How the Trust Score is calculated →

The verified record

CSLB license
#428171 verify on CSLB ↗
Classifications
B
Years licensed
43.8 years since 09/20/1982
Contractor bond
$25,000 American Contractors Indemnity Company
Workers’ comp
Current
Business type
Sole Owner
Qualifying principal
Robert John Dettmer
Address of record
77 Plumas Street, Brisbane, CA 94005

Frequently Asked Questions

Is Dettmer Construction Company a licensed General Contractor contractor in California?

Yes. Dettmer Construction Company holds California CSLB contractor license #428171 with a B (General Building) classification. Current CSLB status: CLEAR (as of July 2026).

What work is Dettmer Construction Company licensed to perform?

Dettmer Construction Company is licensed for B (General Building).

Is Dettmer Construction Company bonded?

Yes. Dettmer Construction Company carries contractor's bond #62026 for $25,000 through American Contractors Indemnity Company.

Does Dettmer Construction Company carry workers' compensation insurance?

CSLB records list the workers' compensation status for Dettmer Construction Company as Exempt.

How long has Dettmer Construction Company held its contractor license?

Dettmer Construction Company has held California contractor license #428171 since 09/20/1982, approximately 44 years (as of July 2026).

Where is Dettmer Construction Company located?

Dettmer Construction Company is based in Brisbane, San Mateo County, CA 94005.