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California contractor license
Guy Plumbing & Heating Inc
Guy Plumbing & Heating Inc of Menlo Park holds California license 330785 (C20 Warm-Air Heating, Ventilating and Air-Conditioning, C36 Plumbing). The CSLB file dated Oct 29, 2026 lists it as active.1 It expires May 31, 2027.
Licensed 49 years, longer than 97% of 9,636 active California plumbing contractors.
Active
Guy Plumbing & Heating Inc, Menlo Park
- License
- 330785
- Class
- C20 Warm-Air Heating, Ventilating and Air-Conditioning; C36 Plumbing
- Expires
- May 31, 2027
- Bond
- $25,000
- Workers' comp
- Insured to Sep 1, 2027
CSLB file dated Oct 29, 2026
From the CSLB file dated Oct 29, 2026. Not a consumer report; check the board before you hire.
What bond, insurance and workers' comp are on file?
- Bond
- $25,000American Contractors Indemnity Company, from Jan 1, 2023, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- InsuredMarkel Insurance Company, from Sep 1, 2026, to Sep 1, 2027
Who is on this license?
- Officer
- Alan R. GuySince Jan 20, 1977
- Responsible managing officer
- Troy J. GuySince Jun 17, 2019
What work does this license cover?
Issued Jan 20, 1977.
Which other Menlo Park businesses hold C20 Warm-Air Heating, Ventilating and Air-Conditioning?
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 29, 2026)
- Contractors State License Board (CSLB)