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California contractor license
Trilogy Plumbing Inc
Trilogy Plumbing Inc of Placentia holds California license 818858 (C36 Plumbing). The CSLB file dated Oct 30, 2026 lists it as active.1 It expires Apr 30, 2027.
Licensed 23 years, longer than 76% of 9,636 active California plumbing contractors.
Active
Trilogy Plumbing Inc, Placentia
- License
- 818858
- Class
- C36 Plumbing
- Expires
- Apr 30, 2027
- Bond
- $25,000
- Workers' comp
- Self-insured
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
- $25,000American Contractors Indemnity Company, from Jan 1, 2023, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- Self-insuredDepartment Of Industrial Relations, from Oct 1, 2003
Who is on this license?
- Officer
- Richard D. LangenwalterSince Jun 2, 2016
- Responsible managing officer, CEO and president
- David E. KeefeSince Apr 15, 2003
What work does this license cover?
Issued Apr 15, 2003.
Which other Placentia businesses hold C36 Plumbing?
- P D P IncLicensed since 1990
- Sundance Plumbing CoLicensed since 2000
- Las ColinasLicensed since 2004
- A 2 Z Plumbing Services IncLicensed since 2007
- Rilo PlumbingLicensed since 2009
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)