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California contractor license
Backflow Prevention Specialists Inc
Backflow Prevention Specialists Inc of Sunnyvale holds California license 427328 (B General Building, C16 Fire Protection, C20 Warm-Air Heating, Ventilating and Air-Conditioning, C36 Plumbing, C43 Sheet Metal). The CSLB file dated Oct 30, 2026 lists it as active.1 It expires Sep 30, 2028.
Licensed 44 years, longer than 95% of 9,636 active California plumbing contractors.
Active
Backflow Prevention Specialists Inc, Sunnyvale
- License
- 427328
- Class
- B General Building; C16 Fire Protection; C20 Warm-Air Heating, Ventilating and Air-Conditioning; C36 Plumbing; C43 Sheet Metal
- Expires
- Sep 30, 2028
- Bond
- $25,000
- Workers' comp
- Insured to Jan 1, 2027
CSLB file dated Oct 30, 2026
From the CSLB file dated Oct 30, 2026. Not a consumer report; check the board before you hire.
Has the board taken action on this license?
None in the CSLB file dated Oct 30, 2026. Confirm with the board: CSLB license check
What bond, insurance and workers' comp are on file?
- Bond
- $25,000Ohio Casualty Insurance Company (The), from Jan 1, 2023, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- InsuredRepublic Indemnity Company Of America, from Jan 1, 2026, to Jan 1, 2027
Who is on this license?
- Officer
- Cristeena G. BennettSince Aug 23, 2004
- Officer
- Tara J. SantensSince Sep 25, 2017
- Responsible managing officer
- Benjamin C. BennettSince Jan 21, 1997
What work does this license cover?
Issued Sep 7, 1982.
- B General Building
- C16 Fire Protection
- C20 Warm-Air Heating, Ventilating and Air-Conditioning
- C36 Plumbing
- C43 Sheet Metal
Which other Sunnyvale businesses hold B General Building?
- Barnes William G & Son Co IncLicensed since 1974
- Pacific Coast Trane ServiceLicensed since 1984
- Pacific Coast Trane ControlsLicensed since 1987
- Canning Construction IncLicensed since 1991
- Arcvisionary LLCLicensed since 2026
What should you check before hiring?
What to ask before you hire
- Get the license number in writing. The name on the license should match the name on your contract and invoice.
- Check the class covers the job. A license for one trade doesn't cover another. California license classes
- Ask for a certificate of insurance sent to you by the insurance agent, not handed over by the contractor. How to read a COI
- Ask who will be on site. If a crew works on your property, ask for proof of workers' comp. An exemption on file means the contractor told the CSLB it has no employees.
- Put it in a written contract: license number, price, start date and payment schedule. Check the license again on the day you sign.
If the license is lapsed
- Don't sign or pay a deposit until the CSLB shows the license active again.
- Ask the contractor why. For a bond or insurance lapse, ask for proof that the new bond or policy was filed with the CSLB, then check again.
- If work has started, hold further payments, keep the contract, receipts and photos, and file a complaint with Contractors State License Board (CSLB).
- Check another contractor. California license lookup
Sources
- CSLB License Master (cslb.ca.gov, Oct 30, 2026)
- Contractors State License Board (CSLB)