Proper Pipeworks, C-36 Plumbing Contractor in Lakewood, CA
Proper Pipeworks operating as a sole owner holds an active California contractor license (CSLB #1149217), valid through Jan 31, 2028. It carries a single CSLB classification: C-36 — Plumbing Contractor. Records show an active surety bond on file with Jet Insurance Company and an exempt workers' compensation status (no employees on payroll). The business is based in Lakewood, in Los Angeles County, California.
- License Number
- 1149217
- Issued
- Jan 20, 2026
- Status
- CLEAR
- Expires
- Jan 31, 2028
- Entity
- Sole Owner
- Surety
- Jet Insurance Company
- Bond Number
- BX0079472
- Effective
- Dec 31, 2025
- Status
- Active
- Coverage
- Exempt
- Carrier
- —
- Policy Number
- —
- Effective
- Jan 2, 2026
- Expires
- —
Recently licensed: the CSLB license is active and in good standing, issued within the last 2 years.
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Proper Pipeworks licensed in California?
Yes. Proper Pipeworks holds California Contractors State License Board license number 1149217, which is active and in good standing. The license was first issued on January 20, 2026. It is valid through January 31, 2028.
What does Proper Pipeworks specialize in?
Proper Pipeworks is licensed for one CSLB classification: C-36 Plumbing Contractor.
Where is Proper Pipeworks headquartered?
Proper Pipeworks is headquartered at 4807 Albury Ave, Lakewood, CA 90713, in Los Angeles County, California.
Does Proper Pipeworks have an active surety bond on file with CSLB?
Yes. Proper Pipeworks has an active California contractor surety bond filed with Jet Insurance Company.
Does Proper Pipeworks carry workers' compensation coverage?
Proper Pipeworks reports an exempt workers' compensation status, meaning the business has no employees on payroll.
How do I verify Proper Pipeworks's contractor license?
You can verify Proper Pipeworks's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=1149217.
- Bond activeDec 31, 2025
- WC coverage startsJan 2, 2026
- License issuedJan 20, 2026
- License expiresJan 31, 2028
- Darrow Heating and Air Conditioning CORP#114301North Hollywood·B General Building Contractor
- G E M Plumbing INC#111308Sierra Madre·C-20 HVAC Contractor
- West B Plumbing#121703North Hollywood·C-36 Plumbing Contractor
- Acco Engineered Systems#120696Pasadena·A General Engineering Contractor
- Sheflo Plumbing CO#91479Agoura Hills·C-20 HVAC Contractor
- Hoskins Plumbing#91761Whittier·C-20 HVAC Contractor
- Zaharoni Dan#229820Los Angeles·B General Building Contractor
- Yousen Plumbing CO INC#229945Los Angeles·C-36 Plumbing Contractor
Working a California job with Proper Pipeworks, or chasing an unpaid invoice? These free tools track your mechanics lien deadlines and rights under California Civil Code §§8200–8848.
- California preliminary notice deadline calculatorFind your 20-day deadline and the lien rights at risk.
- Do I need a preliminary notice in California?Answer a few questions to see if the 20-day notice applies.
- Did I lose my California lien rights?Check whether your mechanics lien window has passed.
- Unpaid construction invoice in CaliforniaYour options and deadlines for collecting on a California job.
Own Proper Pipeworks? Claim or correct this profile