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California contractor license
Boss Plumbing Company
Boss Plumbing Company of Los Angeles holds California license 579704 (C36 Plumbing, C42 Sanitation System). The CSLB file dated Nov 1, 2026 lists it as active.1 It expires Sep 30, 2028.
Licensed 37 years, longer than 94% of 334 active Los Angeles plumbing contractors.
Active
Boss Plumbing Company, Los Angeles
- License
- 579704
- Class
- C36 Plumbing; C42 Sanitation System
- Expires
- Sep 30, 2028
- Bond
- $25,000
- Workers' comp
- Insured to Jul 1, 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
- $25,000Atlantic Specialty Insurance Company, from Jun 18, 2026, continuous
- Liability insurance
- Not in the CSLB fileCheck with the board
- Workers' comp
- InsuredPacific Compensation Insurance Company, from Jul 1, 2026, to Jul 1, 2027
Who is on this license?
- Officer
- Sharon R. BastomskiSince Sep 9, 1998
- Responsible managing officer, CEO and president
- Asher BastomskiSince Oct 19, 1989
What work does this license cover?
Issued Oct 19, 1989. Reissued Sep 9, 1998.
- C36 Plumbing
- C42 Sanitation System
Which other Los Angeles businesses hold C36 Plumbing?
- Padilla Plumbing IncLicensed since 1985
- Cavalry Plumbing IncLicensed since 1986
- Arie Plumbing IncLicensed since 1992
- Meoli Rocco Plumbing Contractor IncLicensed since 1992
- All-Powerful Plumbing & Heating IncLicensed since 1993
Plumbing Contractors in Los AngelesCalifornia plumbing contractors
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)