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California contractor license
Master Pro Plumbing Inc
Master Pro Plumbing Inc of Los Banos holds California license 1031436 (C36 Plumbing). The CSLB file dated Oct 30, 2026 lists it as active.1 It expires Jul 31, 2028.
Active
Master Pro Plumbing Inc, Los Banos
- License
- 1031436
- Class
- C36 Plumbing
- Expires
- Jul 31, 2028
- Bond
- $25,000
- Workers' comp
- Exempt
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
- Exemptfrom Jun 6, 2026
Who is on this license?
- Officer
- Hugo Martinez PioSince Sep 27, 2017
- Responsible managing officer, CEO and president
- Juan M. LucasSince Sep 27, 2017
What work does this license cover?
Issued Sep 27, 2017. Inactive Oct 1, 2019 to Jul 3, 2020.
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 Los Banos businesses hold C36 Plumbing?
- Always Rescue Plumbing IncLicensed since 2018
- Quick 1 Repipe & Plumbing IncLicensed since 2020
- HR Silicon Valley Plumbers LLCLicensed since 2021
- Gravity PlumbingLicensed since 2025
- MJ Plumbing & Re-Pipe IncLicensed since 2025
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)