Wilhelm Thomas Frederic

Desert Hot Springs · Riverside County · CA

LISTED

Bestopedia verdict

81 / 100 Bestopedia Trust Score

California’s contractor board lists Wilhelm Thomas Frederic in CLEAR standing. No active contractor bond is on file, and workers’ compensation coverage is current.

License standing
30 / 30
Years licensed
20 / 20
Contractor bond
5 / 20
Workers' comp
16 / 20
Business structure
10 / 10

How the Trust Score is calculated →

The verified record

CSLB license
#604997 verify on CSLB ↗
Classifications
B, C-10, C-16, C-36, C-42, HAZ
Years licensed
35.7 years since 10/17/1990
Contractor bond
$25,000 BUSINESS ALLIANCE INSURANCE COMPANY cancellation on file (07/30/2026)
Workers’ comp
Current
Business type
Sole Owner
Qualifying principal
Thomas Frederic Wilhelm
Address of record
12679 Palm Drive, Desert Hot Springs, CA 92240

Frequently Asked Questions

Is Wilhelm Thomas Frederic a licensed Plumbing contractor in California?

Yes. Wilhelm Thomas Frederic holds California CSLB contractor license #604997 with a C-36 (Plumbing) classification. Current CSLB status: CLEAR.

What work is Wilhelm Thomas Frederic licensed to perform?

License #604997 carries C-36 (Plumbing), plus additional classifications: B, C10, C16, C42, HAZ.

Is Wilhelm Thomas Frederic bonded?

Yes. Wilhelm Thomas Frederic carries contractor's bond #G201508051333155 for $25,000 through BUSINESS ALLIANCE INSURANCE COMPANY. Note: a bond cancellation date (07/30/2026) is on file.

Does Wilhelm Thomas Frederic carry workers' compensation insurance?

Workers' compensation status on file: Exempt.

How long has Wilhelm Thomas Frederic held its contractor license?

License #604997 was originally issued on 10/17/1990, approximately 36 years ago (as of July 2026).

Where is Wilhelm Thomas Frederic located?

Wilhelm Thomas Frederic is based in Desert Hot Springs, Riverside County, CA 92240.