Keystone Mechanical LLC

Campbell · Santa Clara County · CA

VERIFIED

Bestopedia verdict

89 / 100 Bestopedia Trust Score

California’s contractor board lists Keystone Mechanical LLC in CLEAR standing. A contractor bond is on file, and workers’ compensation coverage is current.

License standing
30 / 30
Years licensed
9 / 20
Contractor bond
20 / 20
Workers' comp
20 / 20
Business structure
10 / 10

How the Trust Score is calculated →

The verified record

CSLB license
#1028816 verify on CSLB ↗
Classifications
C-20
Years licensed
9.0 years since 07/10/2017
Contractor bond
$25,000 OHIO CASUALTY INSURANCE COMPANY (THE)
Workers’ comp
Current HARTFORD CASUALTY INSURANCE COMPANY
Business type
Limited Liability
Qualifying principal
Juan Jose Moreno
Address of record
1051 Linda Drive, Campbell, CA 95008

Frequently Asked Questions

Is Keystone Mechanical LLC a licensed HVAC contractor in California?

Yes. Keystone Mechanical LLC holds California CSLB contractor license #1028816 with a C-20 (Warm-Air Heating, Ventilating and Air-Conditioning) classification. Current CSLB status: CLEAR.

What work is Keystone Mechanical LLC licensed to perform?

License #1028816 carries C-20 (Warm-Air Heating, Ventilating and Air-Conditioning).

Is Keystone Mechanical LLC bonded?

Yes. Keystone Mechanical LLC carries contractor's bond #999167837 for $25,000 through OHIO CASUALTY INSURANCE COMPANY (THE).

Does Keystone Mechanical LLC carry workers' compensation insurance?

Yes. Workers' compensation insurance is on file with HARTFORD CASUALTY INSURANCE COMPANY, with a policy expiration of 05/01/2027.

How long has Keystone Mechanical LLC held its contractor license?

License #1028816 was originally issued on 07/10/2017, approximately 9 years ago (as of July 2026).

Where is Keystone Mechanical LLC located?

Keystone Mechanical LLC is based in Campbell, Santa Clara County, CA 95008.