Constantini Heating and Air Conditioning
Santa Rosa · Sonoma County · CA
VERIFIED
Bestopedia verdict
California’s contractor board lists Constantini 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
The verified record
- CSLB license
- #434351 verify on CSLB ↗
- Classifications
- C-20, C-36
- Years licensed
- 43.4 years since 02/04/1983
- Contractor bond
- $25,000 WESTERN SURETY COMPANY
- Workers’ comp
- Current AMERICAN CASUALTY COMPANY OF READING PA
- Business type
- Sole Owner
- Qualifying principal
- Mark Stefan Constantini, Rudolf Leopold Constantini
- Address of record
- P O Box 4823, Santa Rosa, CA 95402
Frequently Asked Questions
Is Constantini Heating and Air Conditioning a licensed HVAC contractor in California?
Yes. Constantini Heating and Air Conditioning holds California CSLB contractor license #434351 with a C-20 (Warm-Air Heating, Ventilating and Air-Conditioning) classification. Current CSLB status: CLEAR.
What work is Constantini Heating and Air Conditioning licensed to perform?
License #434351 carries C-20 (Warm-Air Heating, Ventilating and Air-Conditioning), plus additional classifications: C36.
Is Constantini Heating and Air Conditioning bonded?
Yes. Constantini Heating and Air Conditioning carries contractor's bond #67413118 for $25,000 through WESTERN SURETY COMPANY.
Does Constantini Heating and Air Conditioning carry workers' compensation insurance?
Yes. Workers' compensation insurance is on file with AMERICAN CASUALTY COMPANY OF READING PA, with a policy expiration of 06/21/2027.
How long has Constantini Heating and Air Conditioning held its contractor license?
License #434351 was originally issued on 02/04/1983, approximately 43 years ago (as of July 2026).
Where is Constantini Heating and Air Conditioning located?
Constantini Heating and Air Conditioning is based in Santa Rosa, Sonoma County, CA 95402.