Rainbow Plumbing and Hydronic Center

Rancho Santa Margarita · Orange County · CA

VERIFIED

Bestopedia verdict

85 / 100 Bestopedia Trust Score

California’s contractor board lists Rainbow Plumbing and Hydronic Center in CLEAR standing. A contractor bond is on file, and workers’ compensation coverage is current.

License standing
30 / 30
Years licensed
8.8 / 20
Contractor bond
20 / 20
Workers' comp
16 / 20
Business structure
10 / 10

How the Trust Score is calculated →

The verified record

CSLB license
#1031539 verify on CSLB ↗
Classifications
C-36
Years licensed
8.8 years since 10/02/2017
Contractor bond
$25,000 JET INSURANCE COMPANY
Workers’ comp
Current
Business type
Corporation
Qualifying principal
Sergei Valeriyevich Kostenov
Address of record
30511 Avenida De Las Flores#1045, Rancho Santa Margarita, CA 92688

Frequently Asked Questions

Is Rainbow Plumbing and Hydronic Center a licensed Plumbing contractor in California?

Yes. Rainbow Plumbing and Hydronic Center holds California CSLB contractor license #1031539 with a C-36 (Plumbing) classification. Current CSLB status: CLEAR.

What work is Rainbow Plumbing and Hydronic Center licensed to perform?

License #1031539 carries C-36 (Plumbing).

Is Rainbow Plumbing and Hydronic Center bonded?

Yes. Rainbow Plumbing and Hydronic Center carries contractor's bond #JT031922 for $25,000 through JET INSURANCE COMPANY.

Does Rainbow Plumbing and Hydronic Center carry workers' compensation insurance?

Workers' compensation status on file: Exempt.

How long has Rainbow Plumbing and Hydronic Center held its contractor license?

License #1031539 was originally issued on 10/02/2017, approximately 9 years ago (as of July 2026).

Where is Rainbow Plumbing and Hydronic Center located?

Rainbow Plumbing and Hydronic Center is based in Rancho Santa Margarita, Orange County, CA 92688.