Public CSLB records

Masterline Plumbing INC, B General Building Contractor in Rancho Cucamonga, CA

License #990945·Corporation·Rancho Cucamonga, San Bernardino County
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Summary

Masterline Plumbing INC operating as a corporation holds an active California contractor license (CSLB #990945), valid through Feb 29, 2028. First issued in 2014, the license has been on the CSLB roster for 12 years. It carries 2 CSLB classifications: B General Building Contractor and C-36 Plumbing Contractor. Records show an active surety bond on file with American Contractors Indemnity Company and active workers' compensation coverage from Travelers Property Casualty Company of America. The business is based in Rancho Cucamonga, in San Bernardino County, California.

Business Information
Address
9295 9th St
Rancho Cucamonga, CA 91730
License Details & Classifications
License Number
990945
Issued
Feb 27, 2014
Status
CLEAR
Expires
Feb 29, 2028
Entity
Corporation
Financial & Insurance Coverage
Contractor Bond
Surety
American Contractors Indemnity Company
Bond Number
100238571
Effective
Jan 1, 2023
Status
Active
Workers' Compensation
Coverage
Workers' Compensation Insurance
Carrier
Travelers Property Casualty Company of America
Policy Number
C5751526
Effective
Mar 29, 2026
Expires
Mar 29, 2027
Verified

This contractor is verified, with no adverse conditions in the current CSLB record.

License StatusActive
Contractor BondOn file
Workers' CompensationActive

An automated summary of public CSLB data, not a credit score, rating, or endorsement. How we determine this

Frequently asked questions
Is Masterline Plumbing INC licensed in California?

Yes. Masterline Plumbing INC holds California Contractors State License Board license number 990945, which is active and in good standing. The license was first issued on February 27, 2014. It is valid through February 29, 2028.

What does Masterline Plumbing INC specialize in?

Masterline Plumbing INC is licensed for 2 CSLB classifications: B General Building Contractor and C-36 Plumbing Contractor.

Where is Masterline Plumbing INC headquartered?

Masterline Plumbing INC is headquartered at 9295 9th St, Rancho Cucamonga, CA 91730, in San Bernardino County, California.

Does Masterline Plumbing INC have an active surety bond on file with CSLB?

Yes. Masterline Plumbing INC has an active California contractor surety bond filed with American Contractors Indemnity Company.

Does Masterline Plumbing INC carry workers' compensation coverage?

Yes. Masterline Plumbing INC carries active workers' compensation coverage through Travelers Property Casualty Company of America.

How do I verify Masterline Plumbing INC's contractor license?

You can verify Masterline Plumbing INC's license directly with the California Contractors State License Board at https://www.cslb.ca.gov/OnlineServices/CheckLicenseII/LicenseDetail.aspx?LicNum=990945.

Activity Timeline
  1. License issuedFeb 27, 2014
  2. Bond activeJan 1, 2023
  3. WC coverage startsMar 29, 2026
  4. WC expiresMar 29, 2027
  5. License expiresFeb 29, 2028
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California lien & payment resources

Working a California job with Masterline Plumbing INC, or chasing an unpaid invoice? These free tools track your mechanics lien deadlines and rights under California Civil Code §§8200–8848.

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