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

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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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Bob Oates Plumbing Truck in Downtown Seattle near Pike Place Market

5 Tips to Avoid a Major Sewer Repair Bill in The Future

By Bob Oates | July 31, 2026

A major sewer line problem can be one of the more disruptive repairs a homeowner encounters. While not every sewer issue can be prevented — aging pipes, shifting soil, tree root invasion, and other conditions can develop regardless of how carefully you maintain your plumbing — good everyday habits can make a real difference. Many…

Worried young man calling plumber while leaking water is falling into bucket at home

Plumbing Emergency: 5 Things to Do When You Hit a Water Line

By Bob Oates | July 22, 2026

Whether you’re installing a fence, planting a tree, replacing a faucet, or tackling another home improvement project, accidentally damaging a water line can quickly turn into a plumbing emergency. In some cases, a broken water line can release hundreds of gallons of water in a short amount of time, leading to costly damage if it…

Man holding plunger and unsure what to do next

DIY Drain Cleaning Tips to Try Before Calling a Plumber

By Bob Oates | July 17, 2026

A slow-draining sink or backed-up shower is one of the most common plumbing problems homeowners face. Fortunately, not every clogged drain requires an immediate service call. Many minor drain clogs can be improved with a few safe, do-it-yourself techniques using items you may already have at home. The key is knowing which DIY drain cleaning…

Group photo of of Bob Oates technicians standing in front of company trucks

Important Questions to Ask Your Drain Cleaning Company

By Bob Oates | July 6, 2026

You can never go wrong with hiring professionals for any job, especially when it comes to drain cleaning. If you’re considering hiring professionals to clean your drains, there are a few questions that you should always ask before hiring a drain cleaning company. Our team here at Bob Oates Sewer & Rooter is proud to…

Bob Oates plumbing team after completing a successful sewer service job

Is Pipe Lining a Long-Term Answer to Sewer Damage?

By Bob Oates | June 24, 2026

When homeowners learn about trenchless sewer repair, one of the first questions they often ask is whether sewer pipe lining is truly a long-term solution or simply a temporary fix. Bob Oates Plumbing, Sewer & Rooter is here with the answer: Modern sewer pipe lining provides results that are comparable to traditional sewer replacement while…

Bob Oates van and equipment at residential sewer job, Bellevue, WA

Why We Often Recommend Trenchless Sewer Repair

By Bob Oates | June 23, 2026

A damaged sewer line can quickly become one of the most disruptive problems a homeowner faces. Recurring drain backups, sewer odors, slow drains, and soggy areas in the yard may all indicate an issue beneath the surface. Traditionally, repairing a sewer line often meant extensive excavation across lawns, driveways, patios, and landscaping. Today, modern trenchless…

Large, stacked sewer pipes

When’s the Best Time for A Sewer Pipe Relining?

By Bob Oates | June 21, 2026

A damaged sewer line rarely fixes itself. In fact, most sewer problems gradually worsen over time, eventually leading to recurring drain backups, foul odors, slow drains, and expensive repairs. Many Seattle homeowners ask whether there is a “best” time of year to schedule sewer pipe relining. The short answer is simple: the best time for…

Close-up of a cracked plumbing pipe damaged by corrosion and wear

4 Main Causes of Cracked Sewer Pipes

By Bob Oates | June 19, 2026

Cracked sewer pipes are a common cause of recurring drain backups, slow drains, sewer odors, and unexpected plumbing repairs. While modern sewer lines are designed to last for decades, age, environmental conditions, tree roots, and installation issues can all contribute to pipe damage over time. Fortunately, a professional sewer camera inspection can often identify a…

Bob Oates Plumbing, Sewer & Rooter Pipe Lining Division trailer with Poopy the Plunger mascot in Seattle

Cost-Effective Advantages of Trenchless Pipe Lining

By Bob Oates | June 18, 2026

When a sewer line begins to crack, leak, separate, or become blocked by tree roots, many homeowners assume a major excavation project is unavoidable. Fortunately, modern trenchless sewer pipe repair methods often provide a faster and more cost-effective solution. At Bob Oates Plumbing, Sewer & Rooter, we help Seattle-area homeowners restore damaged sewer lines using…

Bob Oates crew finishing a trenchless sewer cleanout and cured-in-place-pipe lining installation.

Why Trenchless Sewer Repairs Are Affordable, No-Dig Solutions For Seattle Homeowners

By Bob Oates | June 16, 2026

When a sewer line needs attention, many homeowners immediately picture torn-up yards, broken concrete, and weeks of disruption. Fortunately, modern trenchless sewer repair technology makes that scene a thing of the past. At Bob Oates Plumbing, Sewer & Rooter, we specialize in no-dig solutions that fix your pipes quickly, efficiently, and with far less mess…

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CALL (206) 789-4944

Serving the Greater Seattle Area

Book Appointment Online