Expert Plumbing, Drain Cleaning & Sewer Repair Services in Greater Seattle

CALL (206) 789-4944

Serving the Greater Seattle Area

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Rated 5 Stars by Michaelene D on Google

Michaelene D., another satisfied Bob Oates customer

"Prescott opened the drain that was clogged and prevented us from using our washing machine for two weeks. Prescott is professional, kind, friendly and a great communicator. He made me feel like a valued customer and explained everything to me very clearly. He was on time and very prompt with the repairs. THANK YOU, Prescott! You're the best! I will be referring Bob Oates Sewer Rooter, LLC and Prescott to my friends."

A Full Suite of Services For Any Repair Need

For over 30 years, Bob Oates Plumbing, Sewer & Rooter has delivered fast, reliable service to neighborhoods across Greater Seattle. We are a licensed side sewer contractor, and all of our staff go through an extensive background screening.

We specialize in plumbing repair, professional drain cleaning, and advanced sewer repair solutions — including trenchless sewer pipe lining — to help homeowners solve problems quickly without unnecessary disruption.

Knowledgeable. Reliable. Affordable. That's Bob Oates!

Our licensed technicians are available 24/7/365 and provide honest recommendations, transparent pricing, and long-term solutions you can count on.

You can be sure only professional technicians show up at your home or office — just ask one of our many satisfied customers!

We offer a complete range of plumbing, drain cleaning, and sewer & rooter services:

Watch the Bob Oates Techs Repair a Broken Sewer Line Affecting Multiple Homes

Serving Cities and Communities All Around Seattle

We're proud to have served the Greater Seattle Area for over three decades.

Our locally dispatched crews serve homes and businesses across King, Snohomish, and Pierce Counties, including:

Schedule an Appointment with Bob Oates Today!

Fill out our contact form or call the office anytime — we’re here to help when you need it most.

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Rated 5 Stars by Johanna G.
via Yelp.com

"Nothing but great experiences with Bob Oates! Would highly recommend for all your sewer and plumbing needs! Honest, hard working company!"

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Proud Member of BOMA

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Stephanie Almeida
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Today it was Henry’s turn to save the day! We discovered after an appraisal that we needed to have earthquake straps attached to our water heater, and he came out within 24 business hours and took care of everything we needed. He did it with a smile, and he did it with excellent customer service. We are never going to call anyone else with plumbing issues - this company surpasses all of our wildest dreams of amazingness! Before and after photos attached!! The whole thing took about 40 minutes from hello to goodbye!
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Cindy Harper
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We've been Bob Oates customers for a few years, and today Konrad provided excellent service locating a water leak in our home. He is a great communicator and I learned a lot as he described his approach to identifying and solving our problem. Also, even though he had to cut into our wall, he did it in a way that makes it easier for us to repair. It's nice to have a reliable go-to person to call on when we need plumbing help. Update: we had Konrad back last week to replace a faucet, and he's still doing great work! Thank you, Konrad!
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B P
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Highly recommended. I had 3 companies come out to give me a quote for preventative clearing of outdoor drain lines. Mike from Bob Oates was the only one who actually opened the drain covers and used a camera to give me a fair assessment of what needed to be addressed, what considerations and complications there might be, and a realistic price quote. Other companies sent more of a salesperson with quotes of thousands of dollars to clear drain lines that they weren't even sure needed to be cleared or could be addressed through the methods quoted. Mike from Bob Oates was knowledgeable, helpful and trustworthy where other companies felt like they were just trying to sell me something.
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Angela alegna
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Prescott has been great to work with. He is extremely attentive and follow-ups promptly on our projects with him.
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Brent Compton
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We have had a great experience using Bob Oats Plumbing. Oliver was especially professional, courteous, and very responsive. I would highly recommend them.
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Kris Boudreaux
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I never thought I would call a plumber a Rockstar but. Henry at Bob Oates plumbing truly is! This company is outstanding. The polite, patient receptionist got me an appointment in one day even though I knew they had no openings. Henry was on time and completed the work in less than an hour. On top of that he is a nice guy to be around. I know my old house has some major plumbing issues coming up in the future - I feel very fortunate to have found this company who I will call with no hesitation!
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Cindy
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great service. when i called late on a saturday i actually got the owners daughter who answers the phones herself even late on the weekend . i was able to get someone to come out in the hour and stop the back up. price was decent and upfront . no surprises
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Alyson Mosher
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We had an emergency clog that turned into a big time sewer line repair job, and the Bob Oates team was timely, thorough, and helpful throughout. Prescott was a great project manager and kept us updated and informed the entire process. We're so glad we contacted them first!

5 Plumbing Tips for Fall

By Bob Oates | October 22, 2026

Fall brings cooler temperatures, heavier rainfall, and falling leaves to the Seattle area. It’s also an excellent time for homeowners to check their plumbing, drainage, and sewer systems before winter arrives. A little preventive maintenance now can help reduce the risk of clogged drains, sewer backups, water damage, and unexpected plumbing repairs. At Bob Oates…

Everything to Know About the Trenchless Pipe Lining Process

By Bob Oates | October 14, 2026

Traditional sewer repairs often require extensive excavation, disrupting lawns, landscaping, driveways, and sidewalks. Modern trenchless pipe lining offers a faster, cleaner alternative, restoring damaged underground pipes with little or no digging. At Bob Oates Plumbing, Sewer & Rooter, our experienced crews use advanced trenchless technology to rehabilitate aging sewer lines throughout the Greater Seattle area.…

Common Drain Issues You Can Avoid

By Bob Oates | October 8, 2026

Most drain problems develop gradually. Grease, soap residue, hair, food particles, and other debris accumulate inside pipes over time, restricting water flow and eventually creating blockages. The good news is that many common drain issues are preventable. A few practical habits, along with timely maintenance and professional drain cleaning when needed, can help keep your…

A Closer Look at the Pipe Lining Process

By Bob Oates | October 5, 2026

Sewer pipe lining may appear straightforward once the job is finished: a damaged sewer line becomes a smooth, seamless pipe without the extensive excavation required for traditional replacement. What happens behind the scenes is in fact extremely precise. Also known as cured-in-place pipe (CIPP) lining, the process requires careful inspection, cleaning, measurement, resin preparation, liner…

Don’t Get Frozen in the Winter Months: Maintain Your Water Heater Today

By Bob Oates | September 27, 2026

As fall and winter approach, so do many family holidays. Thanksgiving, Christmas, and New Year’s Eve are the perfect occasions for friends and relatives to visit, and many times they will stay as guests in the house for a few days. This means that more people will be using hot water for washing laundry, dishes,…

Advantages of Trenchless Sewer Replacement

By Bob Oates | September 25, 2026

Replacing a damaged sewer line doesn’t always mean digging a trench across your property. Modern trenchless sewer pipe repair and replacement methods can restore underground pipes with minimal excavation, helping homeowners avoid much of the disruption, expense, and property damage associated with traditional sewer replacement. Depending on the condition of the existing line, trenchless solutions…

What Happens When Drain Cleaning Is Neglected?

By Bob Oates | September 23, 2026

Your drains handle wastewater every day, and normal use gradually leaves grease, food particles, hair, soap residue, and other material behind. Without occasional drain cleaning, that buildup accumulates, restricts water flow, and makes drainage problems increasingly difficult to ignore. Neglecting drain cleaning doesn’t mean every plumbing system will develop the same problem on the same…

Recurring Clogs and Their Causes

By Bob Oates | September 22, 2026

Clearing a clogged drain is one thing. Having the same drain clog again a few weeks later is another. A recurring clog often means that the original blockage wasn’t completely removed — or that another problem inside the drain or sewer line is causing it to return. Instead of repeatedly treating the symptom, identifying the…

Tips on Dealing With Clogged Drains

By Bob Oates | September 18, 2026

A clogged drain is frustrating, but some simple blockages can be cleared at home without calling a plumber. Below, the team at Bob Oates has assembled some pro tips for dealing with clogged drains. Before you start, take stock of what’s happening: if several drains are slow or clogged, wastewater is backing up into another…

Are Plumbing Inspections Important For Homeowners?

By Bob Oates | September 17, 2026

Yes! A professional plumbing inspection is an important part of understanding the condition of your home’s plumbing and catching potential problems before they turn into expensive repairs. A comprehensive inspection looks beyond faucets and fixtures. At Bob Oates Plumbing, Sewer & Rooter, that means evaluating key components throughout the home — including pipes, toilets, water…

CALL (206) 789-4944

Serving the Greater Seattle Area