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California contractor license
Bischof Dave Inc
Bischof Dave Inc of Sylmar holds California license 540222 (C36 Plumbing). The CSLB file dated Nov 1, 2026 lists it as active.1 It expires Nov 30, 2026.
Licensed 38 years, longer than 93% of 65 active Sylmar plumbing contractors.
Active
- License ends Nov 30, 2026 (29 days)
Bischof Dave Inc, Sylmar
- Board action on file.
- License
- 540222
- Class
- C36 Plumbing
- Expires
- Nov 30, 2026
- Bond
- $25,000
- Workers' comp
- Exempt
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?
- Sep 20, 2006 — Disciplinary bond (conditional) — Case 2004000384 — Ended Aug 15, 2008
From the CSLB file dated Nov 1, 2026. Confirm with the board. CSLB license check
What bond, insurance and workers' comp are on file?
- Bond
- $25,000Business Alliance Insurance Company, from Jan 1, 2023, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- Exemptfrom Nov 28, 2024
Who is on this license?
- Responsible managing officer, CEO and president
- David A. BischofSince Aug 31, 1988
What work does this license cover?
Issued Aug 31, 1988. Reissued Nov 29, 1994.
The workers' comp exemption means the holder told the CSLB it has no employees. If a crew works on your job, ask for a workers' comp certificate.
Which other Sylmar businesses hold C36 Plumbing?
- Flow Right Plumbing And Rooter IncLicensed since 1988
- Az Air Conditioning And Heating IncLicensed since 1991
- Escobar Plumbing IncLicensed since 1991
- Best Value Plumbing CorpLicensed since 2026
- ZK Plumbing IncLicensed since 2026
What should you check before hiring?
What to ask before you hire
- Ask whether it has been renewed. Something on this license ends within 60 days. Check again before you pay a deposit.
- 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)