Home / License lookup / California / Holland Plumbing Inc
California contractor license
Holland Plumbing Inc
Holland Plumbing Inc of Petaluma holds California license 1148010 (C36 Plumbing). The CSLB file dated Nov 1, 2026 lists it as active.1 It expires Dec 31, 2027.
Active
Holland Plumbing Inc, Petaluma
- License
- 1148010
- Class
- C36 Plumbing
- Expires
- Dec 31, 2027
- Bond
- $25,000
- Workers' comp
- Insured to Feb 9, 2027
CSLB file dated Nov 1, 2026
From the CSLB file dated Nov 1, 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 Nov 1, 2026. Confirm with the board: CSLB license check
What bond, insurance and workers' comp are on file?
- Bond
- $25,000American Contractors Indemnity Company, from Sep 23, 2025, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- InsuredTechnology Insurance Company Inc, from Feb 9, 2026, to Feb 9, 2027
Who is on this license?
- Responsible managing officer, CEO and president
- Tyler A. AlthuizenSince Dec 22, 2025
What work does this license cover?
Issued Dec 22, 2025.
Which other Petaluma businesses hold C36 Plumbing?
- Rigney Plumbing IncLicensed since 1985
- Dolcini Plumbing IncLicensed since 1986
- Joe's Plumbing Service IncLicensed since 1990
- Norcal Superior Systems IncLicensed since 2022
- Elite Pipe Solutions LLCLicensed since 2024
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, Nov 1, 2026)
- Contractors State License Board (CSLB)