Heatwave Systems, C-4 Boiler, Hot Water Heating and Steam Fitting Contractor in Sonoma, CA
Heatwave Systems operating as a corporation holds an active California contractor license (CSLB #857673), valid through Apr 30, 2027. First issued in 2005, the license has been on the CSLB roster for 21 years. It carries 2 CSLB classifications: C-4 Boiler, Hot Water Heating and Steam Fitting Contractor and C-36 Plumbing Contractor. Records show an active surety bond on file with Atlantic Specialty Insurance Company and a previously-filed workers' compensation policy with Security National Insurance Company that is no longer active. The business is based in Sonoma, in Sonoma County, California.
- License Number
- 857673
- Issued
- Apr 19, 2005
- Status
- CLEAR
- Expires
- Apr 30, 2027
- Entity
- Corporation
- Surety
- Atlantic Specialty Insurance Company
- Bond Number
- 800233992
- Effective
- Jan 23, 2026
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- Security National Insurance Company
- Policy Number
- TWC4657085
- Effective
- Jul 10, 2025
- Expires
- Jul 10, 2026
This contractor has a compliance issue in its public CSLB record:
- No active workers' comp on file
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Heatwave Systems licensed in California?
Yes. Heatwave Systems holds California Contractors State License Board license number 857673, which is active and in good standing. The license was first issued on April 19, 2005. It is valid through April 30, 2027.
What does Heatwave Systems specialize in?
Heatwave Systems is licensed for 2 CSLB classifications: C-4 Boiler, Hot Water Heating and Steam Fitting Contractor and C-36 Plumbing Contractor.
Where is Heatwave Systems headquartered?
Heatwave Systems is headquartered at P O Box 1747, Sonoma, CA 95476, in Sonoma County, California.
Does Heatwave Systems have an active surety bond on file with CSLB?
Yes. Heatwave Systems has an active California contractor surety bond filed with Atlantic Specialty Insurance Company.
Does Heatwave Systems carry workers' compensation coverage?
Heatwave Systems has a previously-filed workers' compensation policy with Security National Insurance Company that is no longer active.
How do I verify Heatwave Systems's contractor license?
You can verify Heatwave Systems's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=857673.
- License issuedApr 19, 2005
- WC coverage startsJul 10, 2025
- Bond activeJan 23, 2026
- WC expiredJul 10, 2026
- License expiresApr 30, 2027
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