National Chimney

San Francisco · San Francisco County · CA

VERIFIED

Bestopedia verdict

100 / 100 Bestopedia Trust Score

California’s contractor board lists National Chimney 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
#733653 verify on CSLB ↗
Classifications
C-20, C-29
Years licensed
29.3 years since 03/14/1997
Contractor bond
$25,000 MERCHANTS BONDING COMPANY (MUTUAL)
Workers’ comp
Current STATE COMPENSATION INSURANCE FUND
Business type
Sole Owner
Qualifying principal
William Arthur Jr, Green Bill Arthur Jr Green
Address of record
1230 Wayland Street, San Francisco, CA 94134

Frequently Asked Questions

Is National Chimney a licensed HVAC contractor in California?

Yes. National Chimney holds California CSLB contractor license #733653 with a C-20 (Warm-Air Heating, Ventilating and Air-Conditioning) classification. Current CSLB status: CLEAR.

What work is National Chimney licensed to perform?

License #733653 carries C-20 (Warm-Air Heating, Ventilating and Air-Conditioning), plus additional classifications: C29.

Is National Chimney bonded?

Yes. National Chimney carries contractor's bond #100433133 for $25,000 through MERCHANTS BONDING COMPANY (MUTUAL).

Does National Chimney carry workers' compensation insurance?

Yes. Workers' compensation insurance is on file with STATE COMPENSATION INSURANCE FUND, with a policy expiration of 06/01/2027.

How long has National Chimney held its contractor license?

License #733653 was originally issued on 03/14/1997, approximately 29 years ago (as of July 2026).

Where is National Chimney located?

National Chimney is based in San Francisco, San Francisco County, CA 94134.