DIAMOND QUALITY HEATING & AIR CONDITIONING

LANCASTER · Los Angeles County · CA

VERIFIED

Bestopedia verdict

91 / 100 Bestopedia Trust Score

California’s contractor board lists DIAMOND QUALITY HEATING & AIR CONDITIONING in CLEAR standing. A contractor bond is on file, and workers’ compensation coverage is current.

License standing
30 / 30
Years licensed
10.7 / 20
Contractor bond
20 / 20
Workers' comp
20 / 20
Business structure
10 / 10

How the Trust Score is calculated →

The verified record

CSLB license
#1008272 verify on CSLB ↗
Classifications
C-20
Years licensed
10.7 years since 10/19/2015
Contractor bond
$25,000 JET INSURANCE COMPANY
Workers’ comp
Current STATE COMPENSATION INSURANCE FUND
Business type
Sole Owner
Qualifying principal
Krystofer Alin Mykhael Nielsen
Address of record
4526 W AVENUE K-6, LANCASTER, CA 93536

Frequently Asked Questions

Is DIAMOND QUALITY HEATING & AIR CONDITIONING a licensed HVAC contractor in California?

Yes. DIAMOND QUALITY HEATING & AIR CONDITIONING holds California CSLB contractor license #1008272 with a C-20 (Warm-Air Heating, Ventilating and Air-Conditioning) classification. Current CSLB status: CLEAR.

What work is DIAMOND QUALITY HEATING & AIR CONDITIONING licensed to perform?

License #1008272 carries C-20 (Warm-Air Heating, Ventilating and Air-Conditioning).

Is DIAMOND QUALITY HEATING & AIR CONDITIONING bonded?

Yes. DIAMOND QUALITY HEATING & AIR CONDITIONING carries contractor's bond #JT008609 for $25,000 through JET INSURANCE COMPANY.

Does DIAMOND QUALITY HEATING & AIR CONDITIONING carry workers' compensation insurance?

Yes. Workers' compensation insurance is on file with STATE COMPENSATION INSURANCE FUND, with a policy expiration of 04/01/2027.

How long has DIAMOND QUALITY HEATING & AIR CONDITIONING held its contractor license?

License #1008272 was originally issued on 10/19/2015, approximately 11 years ago (as of July 2026).

Where is DIAMOND QUALITY HEATING & AIR CONDITIONING located?

DIAMOND QUALITY HEATING & AIR CONDITIONING is based in LANCASTER, Los Angeles County, CA 93536.