R H Hydronics
R H Hydronics is an active, licensed contractor operating in San Rafael, CA. Operating under a California contractor license established in 2010. They hold a C-4 Boiler, Hot-Water Heating and Steam Fitting Contractor license. They currently maintain an active contractor bond and workers' compensation insurance. No disciplinary actions have been recorded against this license.
License Information
- License Number
- 951610
- Status
- Active
- Classification(s)
- C-4: Boiler, Hot-Water Heating and Steam Fitting Contractor
- Tenure
- Licensed since 2010 (15 years)
- Issue Date
- August 25, 2010
- Expiration Date
- August 31, 2026
- Disciplinary Record
- No Disciplinary Actions
Bond & Insurance
- Contractor Bond
- Bonded ($25000) – NORTH RIVER INSURANCE COMPANY (THE)
- Workers’ Compensation
- Workers' Compensation Insurance – NORGUARD INSURANCE COMPANY
A contractor’s bond protects consumers up to the bond amount if the contractor fails to fulfill contractual obligations or violates CSLB regulations.
Workers’ compensation insurance protects homeowners from liability if a contractor’s employee is injured on the job site.
Location
- Address
- 35 A MARK DRIVE
- City
- San Rafael, CA
- ZIP Code
- 94903
- Phone
- (415) 453-3040
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About This License Type
C-4: Boiler, Hot-Water Heating and Steam Fitting Contractor
Installs, services, and repairs power boiler installations, hot-water heating systems and steam fitting, including fire-tube and water-tube boilers, piping, fittings, valves, gauges, pumps, radiators, fuel oil tanks, chimneys, flues, and associated solar heating equipment.
Not authorized: Does not include warm-air heating or air conditioning systems (see C-20).
Licensing Resources
Workers' comp requirements for California contractors
Deposit and payment rules for California contracts
Home improvement contract requirements
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License data sourced from the California Contractors State License Board. Last data update: April 05, 2026.