Mackenbach John F

Rolling Hills · Los Angeles County · CA

Verified

Bestopedia verdict

91 / 100 Bestopedia Trust Score

California’s contractor board lists Mackenbach John F 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
23.8 / 30
License continuity
10 / 10
Workers' comp
9 / 12
Contractor bond
8 / 8

How the Trust Score is calculated →

The verified record

CSLB license
#540055 verify on CSLB ↗
Classifications
B
Years licensed
37.8 years since 08/30/1988
Contractor bond
$25,000 American Contractors Indemnity Company
Workers’ comp
Current
Business type
Sole Owner
Qualifying principal
John Frederick Mackenbach
Address of record
56 Portuguese Bend Rd, Rolling Hills, CA 90274

Frequently Asked Questions

Is Mackenbach John F a licensed General Contractor contractor in California?

Yes. Mackenbach John F holds California CSLB contractor license #540055 with a B (General Building) classification. Current CSLB status: CLEAR (as of July 2026).

What work is Mackenbach John F licensed to perform?

Mackenbach John F is licensed for B (General Building).

Is Mackenbach John F bonded?

Yes. Mackenbach John F carries contractor's bond #100118526 for $25,000 through American Contractors Indemnity Company.

Does Mackenbach John F carry workers' compensation insurance?

CSLB records list the workers' compensation status for Mackenbach John F as Exempt.

How long has Mackenbach John F held its contractor license?

Mackenbach John F has held California contractor license #540055 since 08/30/1988, approximately 38 years (as of July 2026).

Where is Mackenbach John F located?

Mackenbach John F is based in Rolling Hills, Los Angeles County, CA 90274.