Contractors

Last Updated: December 9th, 2025By

M S R PLUMBING CO.

Plumbing Contractor

M S R PLUMBING CO.

Address: P O BOX 12562, NEWPORT BEACH, CA 92658

Business Type: Sole Owner

License Class(es): C36

License Type(s): Plumbing Contractor

License Status: Contr Bond Susp

About the Business

M S R PLUMBING CO. is a CA licensed contractor, with CSLB License Number 922997.  M S R PLUMBING CO. was licensed on 9/30/2008 and their current license expires on 9/30/2026 .

M S R PLUMBING CO. is located in Orange County, with a primary mailing address of  P O BOX 12562,  NEWPORT BEACH,  CA  92658.

M S R PLUMBING CO. has workers compensation insurance issued by .  The workers compensation policy number is   KWC1407616.  The policy was effective   09/17/2024 and expires on .

M S R PLUMBING CO. has a surety bond issued by HUDSON INSURANCE COMPANY.  The surety bond number is  30050308 and it is for the amount of $ 25000.  The surety bond is effective as of  1/1/2023.

Verified License

BetterBuildPros.com has confirmed M S R PLUMBING CO.‘s Contractor’s License as of 11/1/2025 via cslb.ca.gov.

Location & Address

Address

P O BOX 12562 NEWPORT BEACH, CA 92658

M S R PLUMBING CO. License Information

  • Issuing Entity: California State Contractors License Board

  • Doing Business As:
  • License Type(s): C36
  • Primary Status: Contr Bond Susp
  • Issue Date: 9/30/2008
  • Reissue Date:
  • Expiration Date: 9/30/2026
  • Bond Company: HUDSON INSURANCE COMPANY
  • Bond Number: 30050308
  • Bond Effective Date: 1/1/2023
  • Bond CancellationDate: 10/19/2025
  • Bond Amount: $25000
  • Worker’s Compensation Coverage Type: Exempt

  • Worker’s Compensation Insurance Company:
  • Worker’s Compensation Insurance Policy Number: KWC1407616
  • Worker’s Compensation Expiration Date:

M S R PLUMBING CO. Personnel Information

  • Name: HOSSEINI MAHMOOD

  • Title: Sole Owner
  • Class: Principal
  • Association Date:  09/30/2008
  • Disassociation Date:

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