Modern Heating and Air Conditioning

Oakland · Alameda County · CA

VERIFIED

Bestopedia verdict

100 / 100 Bestopedia Trust Score

California’s contractor board lists Modern Heating and Air Conditioning 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
#685104 verify on CSLB ↗
Classifications
C-20
Years licensed
32.3 years since 03/11/1994
Contractor bond
$25,000 WESTERN SURETY COMPANY
Workers’ comp
Current MARKEL AMERICAN INSURANCE COMPANY
Business type
Sole Owner
Qualifying principal
Danny Wang-leong Tong
Address of record
P O Box 70511, Oakland, CA 946120511

Frequently Asked Questions

Is Modern Heating and Air Conditioning a licensed HVAC contractor in California?

Yes. Modern Heating and Air Conditioning holds California CSLB contractor license #685104 with a C-20 (Warm-Air Heating, Ventilating and Air-Conditioning) classification. Current CSLB status: CLEAR.

What work is Modern Heating and Air Conditioning licensed to perform?

License #685104 carries C-20 (Warm-Air Heating, Ventilating and Air-Conditioning).

Is Modern Heating and Air Conditioning bonded?

Yes. Modern Heating and Air Conditioning carries contractor's bond #67697602 for $25,000 through WESTERN SURETY COMPANY.

Does Modern Heating and Air Conditioning carry workers' compensation insurance?

Yes. Workers' compensation insurance is on file with MARKEL AMERICAN INSURANCE COMPANY, with a policy expiration of 11/02/2026.

How long has Modern Heating and Air Conditioning held its contractor license?

License #685104 was originally issued on 03/11/1994, approximately 32 years ago (as of July 2026).

Where is Modern Heating and Air Conditioning located?

Modern Heating and Air Conditioning is based in Oakland, Alameda County, CA 946120511.