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ONE SOURCE PLUMBING & ROOTER INC

License #988995San FranciscoCorporationLicensed since December 10, 2013

License

Status
CLEAR
First issued
December 10, 2013
Expires
December 31, 2027
Entity
Corporation
Address of record
350 BAY ST 100-178, San Francisco, CA 94133
Phone of record
(415) 570 3646

Contractor bond

Surety
AMERICAN CONTRACTORS INDEMNITY COMPANY
Bond number
101007868
Amount
$25,000
Effective
November 5, 2025

Workers’ compensation

This contractor has certified to the state that they have no employees, so they carry no workers’ compensation policy. The exemption covers only the license holder. If anyone else works on your project — a crew, a helper, a day laborer — they are not covered, and an injury on your property can become your liability. Ask who will physically be on site.

Are they licensed for your job?

A California contractor may only contract for work their classification covers. Pick the job and this reads the license on file against it.

Licensed to perform

A contractor may only contract for work within their classifications. See all 422 licensed plumbing contractors in San Francisco.

People on this license

NameTitleSinceThrough
SOWADAH MOSTAFA AHMEDResponsible Managing Officer/Chief Executive Officer/PresidentDecember 10, 2013Current

Verified status badge

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ONE SOURCE PLUMBING & ROOTER INC — California contractor license #988995 status, verified against CSLB records
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Is this your license?

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Source: California Contractors State License Board public records. Coverage lapse is evaluated against today’s date; all other fields reflect the latest weekly CSLB file. Confirm at the CSLB’s official record before signing a contract.