Diehl John

Sonora · Tuolumne County · CA

VERIFIED

Bestopedia verdict

100 / 100 Bestopedia Trust Score

California’s contractor board lists Diehl John 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
#556206 verify on CSLB ↗
Classifications
B, C-10
Years licensed
37.4 years since 02/03/1989
Contractor bond
$25,000 AMERICAN CONTRACTORS INDEMNITY COMPANY
Workers’ comp
Current GREAT AMERICAN ALLIANCE INSURANCE COMPANY
Business type
Sole Owner
Qualifying principal
John Douglas Diehl
Address of record
19696 Whitto Mine Road, Sonora, CA 95370

Frequently Asked Questions

Is Diehl John a licensed Electrical contractor in California?

Yes. Diehl John holds California CSLB contractor license #556206 with a C-10 (Electrical) classification. Current CSLB status: CLEAR.

What work is Diehl John licensed to perform?

License #556206 carries C-10 (Electrical), plus additional classifications: B.

Is Diehl John bonded?

Yes. Diehl John carries contractor's bond #100959776 for $25,000 through AMERICAN CONTRACTORS INDEMNITY COMPANY.

Does Diehl John carry workers' compensation insurance?

Yes. Workers' compensation insurance is on file with GREAT AMERICAN ALLIANCE INSURANCE COMPANY, with a policy expiration of 09/30/2026.

How long has Diehl John held its contractor license?

License #556206 was originally issued on 02/03/1989, approximately 37 years ago (as of July 2026).

Where is Diehl John located?

Diehl John is based in Sonora, Tuolumne County, CA 95370.