One Source Plumbing and Rooter, Inc.

Diamond Certified Company Report
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One Source Plumbing and Rooter, Inc.
108 SURVEYS
10 CONSECUTIVE YEARS
SINCE MAY 2016
CERT 2361

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108
Verified Customers
Surveyed
Customer Loyalty
Customer Satisfaction
Helpful Expertise

Company Credentials

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  • Business Practices
  • Current Complaint File
  • License Verification
  • Legal & Finance

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Diamond Certified Company Report SUMMARY UPDATE April 2025

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One Source Plumbing and Rooter, Inc.

Rated Highest in Quality and Helpful Expertise for 10 Consecutive Years.

Quick Summary

  • Diamond Certified since 2016
  • Installs, maintains, and repairs plumbing systems for residential and commercial clients throughout the San Francisco Peninsula
  • Offers free estimates
  • 24/7 emergency service available

Top News Updated

COMPANY MILESTONES

One Source Plumbing and Rooter, Inc. is celebrating its 12th anniversary in 2025.

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Top Survey Responses

From a recent Diamond Certified Survey Response: “I [had] an emergency and they were the only ones who picked up [the phone]. They were able to send someone out quickly...

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From a recent Diamond Certified Survey Response: “When we had leakage issues from the pipe underneath our kitchen sink, they walked us through why it was happening, fixed the problem and told us how to prevent it. [They were] very personable, detailed and professional.”

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Trending Projects

One Source Plumbing and Rooter, Inc. recently completed a toilet replacement job for a homeowner in San Francisco. The client was particularly impressed by the speed at which the company...

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One Source Plumbing and Rooter, Inc.
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One Source Plumbing and Rooter, Inc.

Plumbing
|
San Francisco  San Mateo  Santa Clara Counties
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108 SURVEYS
10 CONSECUTIVE YEARS
SINCE MAY 2016
CERT 2361

Rated Highest in Quality & Helpful Expertise Performance Guaranteed

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Diamond Certified Researched Articles on One Source Plumbing and Rooter, Inc.

researched article

A recent plumbing installation by One Source Plumbing and Rooter

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One Source Plumbing and Rooter, Inc. provides a complete range of plumbing services for residential and commercial clients throughout the San Francisco Peninsula. The company has the training and equipment to install and repair all types of plumbing systems, and its technicians are available 24/7 to handle emergencies.

Owner Mostafa Sowadah says One Source Plumbing and Rooter’s customer-oriented approach to plumbing has been an important part of its continued success. “We’re known for having good chemistry with our customers—we pay attention to details and make recommendations that we know they’ll appreciate. Plumbing problems can be stressful, but our customers know that once they call us, we’ll be there to take care of everything.”

One Source Plumbing and Rooter focuses on performing “long-term fixes” that maximize the life span of its customers’ plumbing systems. “We want our work to be here long after we’re gone, so we take a lot of pride in finding the best solutions for each situation,” says Mr. Sowadah. “We don’t take shortcuts; we believe good, honest work will lead to a loyal clientele base that’s quick to refer us to others.”

Owner Mostafa Sowadah (L) and Partner Larry Cane-One Source Plumbing and Rooter, Inc.
Owner Mostafa Sowadah (L) and Partner Larry Cane

Diamond Certified Researched Capabilities on One Source Plumbing and Rooter, Inc.

Service Area

serving area
The San Francisco Peninsula
Serving the San Francisco Peninsula, Including Excelsior, Sunset District, Mission District, Bernal Heights, North Beach and Bayview District

Main Services

Plumbing
  • Commercial Plumbing
  • Drain Cleaning
  • Emergency Plumber
  • Gas Pipe Repair
  • Leak Detection
  • Plumbing Services
  • Sewer Pipe
  • Toilet Repair
  • Water Heater Installation
  • Water Heater Repair
  • Water Heater Replacement
  • Water Lines

Additional Services

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Company Info

Hours
Mon
12:00 am - 11:59 pm
Tue
12:00 am - 11:59 pm
Wed
12:00 am - 11:59 pm
Thu
12:00 am - 11:59 pm
Fri
12:00 am - 11:59 pm
Sat
12:00 am - 11:59 pm
Sun
12:00 am - 11:59 pm
Closed
Contact
One Source Plumbing and Rooter, Inc.

Capabilities Table

Company Name
One Source Plumbing and Rooter, Inc.
Managers
Mostafa Sowadah, Owner
Years in Industry
6 (Manager)
# of Employees
1
License
988995
Founded
2013
Payment Accepted
american express,
discover,
mastercard,
visa

Key Factors

Select Photos From One Source Plumbing and Rooter, Inc.

1 of 6 Plumbing installation on a wall featuring various black pipes, copper lines, and electrical connections, with a bucket nearby.
An example of One Source Plumbing and Rooter's laundry hook-up work
Picture of An example of One Source Plumbing and Rooter's laundry hook-up work - One Source Plumbing and Rooter, Inc.
Picture of One Source Plumbing and Rooter installed this trench drain to protect a customer's garage from rainwater. - One Source Plumbing and Rooter, Inc.
Picture of One Source Plumbing and Rooter set up this sewer for future access. - One Source Plumbing and Rooter, Inc.
Picture of One Source Plumbing and Rooter worked on this sewer that runs at an angle. - One Source Plumbing and Rooter, Inc.
Picture of A One Source Plumbing and Rooter technician works on a sewer line installation. - One Source Plumbing and Rooter, Inc.
Picture of A recent bathroom remodeling project by One Source Plumbing and Rooter - One Source Plumbing and Rooter, Inc.

Diamond Certified Expert Contributor Advice & Tips

Mostafa Sowadah is a veteran of the plumbing industry and owner of One Source Plumbing and Rooter, Inc., a Diamond Certified company. He can be reached at (415) 340-2353 or by email.

Mostafa Sowadah is a veteran of the plumbing industry and owner of One Source Plumbing and Rooter, Inc., a Diamond Certified company. He can be reached at (415) 340-2353 or by email.

Mostafa Sowadah: One Source for Success

By James Florence, Diamond Certified Resource Reporter

SAN FRANCISCO — Following high school, Mostafa Sowadah knew he wanted to get into a trade—it was just a matter of deciding which one to pursue. “When I was enrolling in trade school, I had the choice of going into automotive, plumbing or HVAC,” he says. “Based on what I saw most people signing up for, it seemed that plumbing was the least popular option. However, I’d always heard good things about plumbing, so I decided to give it...

Read Full Article - Mostafa Sowadah: One Source for Success

One Source Plumbing and Rooter, Inc. Website and External Feeds

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One Source Plumbing and Rooter, Inc. Ratings and Survey Responses (reviews)

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One Source Plumbing and Rooter, Inc.
108 SURVEYS
  • 4.7
  • star image
  • star image
  • star image
  • star image
  • star image
10 CONSECUTIVE YEARS
SINCE MAY 2016
CERT 2361

Diamond Certified Ratings Dashboard

Customer Satisfaction

Customer Loyalty

Helpful Expertise

Company Credentials

  • Liability Insurance
  • Business Practices
  • Current Complaint File
  • License Verification
  • Legal & Finance
One Source Plumbing and Rooter, Inc.

Based in San Francisco, CA

4.7 avg. star score from 108 Verified Customer Phone Survey Responses

(Reviews: Scroll down to read them.)

Our surveys of only verified real customers produce the country’s most accurate ratings of local companies. One Source Plumbing and Rooter, Inc. scored Highest in Quality and Helpful Expertise and passed the credential-based checks to earn Diamond Certified.

A Star Equivalent Score is calculated for each verified customer rating by weighting the 1–10 Quality score, the YES/NO Loyalty (intent to return) score and the YES/NO Helpful Expertise score. If Helpful Expertise wasn’t surveyed or didn’t apply, it’s simply not shown.