Plumbing Connection, C-36 Plumbing Contractor in Union City, CA
Plumbing Connection operating as a corporation holds California contractor license #944509, which is currently expired (lapsed Jul 31, 2026) and not valid to contract until it is renewed. First issued in 2010, the license has been on the CSLB roster for 16 years. It carries 2 CSLB classifications: C-36 Plumbing Contractor and C-42 Sanitation System Contractor. Records show an active surety bond on file with American Contractors Indemnity Company and active workers' compensation coverage from Amtrust Insurance Company. The business is based in Union City, in Alameda County, California.
- License Number
- 944509
- Issued
- Mar 17, 2010
- Status
- CLEAR
- Expires
- Jul 31, 2026
- Entity
- Corporation
- Surety
- American Contractors Indemnity Company
- Bond Number
- 100698396
- Effective
- Jan 1, 2023
- Status
- Active
- Coverage
- Workers' Compensation Insurance
- Carrier
- Amtrust Insurance Company
- Policy Number
- TWC4749446
- Effective
- Jan 18, 2026
- Expires
- Jan 18, 2027
This contractor has a compliance issue in its public CSLB record:
- License expired
An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this
Is Plumbing Connection licensed in California?
Plumbing Connection previously held California Contractors State License Board license number 944509, but the license expired on July 31, 2026 and is not currently valid. It was first issued on March 17, 2010.
What does Plumbing Connection specialize in?
Plumbing Connection is licensed for 2 CSLB classifications: C-36 Plumbing Contractor and C-42 Sanitation System Contractor.
Where is Plumbing Connection headquartered?
Plumbing Connection is headquartered at P O Box 2405, Union City, CA 94587, in Alameda County, California.
Does Plumbing Connection have an active surety bond on file with CSLB?
Yes. Plumbing Connection has an active California contractor surety bond filed with American Contractors Indemnity Company.
Does Plumbing Connection carry workers' compensation coverage?
Yes. Plumbing Connection carries active workers' compensation coverage through Amtrust Insurance Company.
How do I verify Plumbing Connection's contractor license?
You can verify Plumbing Connection's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=944509.
- License issuedMar 17, 2010
- Bond activeJan 1, 2023
- WC coverage startsJan 18, 2026
- License expiredJul 31, 2026
- WC expiresJan 18, 2027
- Broadway Mechanical - Contractors INC#584263Oakland·A General Engineering Contractor
- Mr Rooter Plumbing#453536Oakland·C-36 Plumbing Contractor
- A-1 Septic Tank Service INC#438710Hayward·C-36 Plumbing Contractor
- Marina Plumbing Company#462864Pleasanton·B General Building Contractor
- Berkeley Plumbing & Heating Company INC#293715Berkeley·C-4 Boiler, Hot Water Heating and Steam Fitting Contractor
- Monterey Mechanical CO#388361Oakland·A General Engineering Contractor
- Sims J L Plumbing Contractors#369874Berkeley·C-36 Plumbing Contractor
- Pierce J R Plumbing Company#188225San Leandro·C-4 Boiler, Hot Water Heating and Steam Fitting Contractor
Working a California job with Plumbing Connection, 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 Plumbing Connection? Claim or correct this profile