Most Trusted Plumber in Wallingford, Seattle

CALL (206) 789-4944

Serving the Greater Seattle Area

Homeowners and businesses in Seattle’s Wallingford neighborhood rely on Bob Oates Plumbing, Sewer and Rooter(opens in new tab) for quality plumbing and sewer solutions backed by decades of experience.

From older craftsman homes to newer remodels to local businesses, our team handles every type of system with care. We specialize in trenchless pipe lining(opens in new tab) methods, which are non-invasive, no-dig solutions that speed up repairs while keeping the costs low.

Plumbing, Drain Cleaning, and Sewer Repair Services in Wallingford

  • Plumber in Wallingford — Our plumbing experts handle everything from routine maintenance to complex installations and repairs for both homes and businesses.
  • Frozen Pipes Wallingford — When pipes freeze, we provide safe and effective thawing services and preventive solutions to keep your plumbing protected.
  • Rooter Service Wallingford — Our rooter service clears out tough obstructions from your drainage and sewer lines, restoring proper function.
  • Toilet Repair Wallingford — Whether your toilet is leaking, clogged, or not flushing properly, our repair services will get it working again, and fast.
  • Water Heater Repair Wallingford — For any issues with your water heater, from inconsistent temperatures to strange noises, we provide expert repair or replacement services.

Schedule Your Appointment Today

To learn more about our services and to receive your free estimate and quote, give us a call!

You may also fill out our online form to schedule your appointment.

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

We look forward to serving you!

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"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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Side Sewer Contractor: Everything You Need To Know

By Bob Oates | August 28, 2026

Bob Oates Plumbing, Sewer & Rooter is a registered side sewer contractor serving the City of Seattle and all surrounding areas. For 35+ years, we have provided comprehensive, cost-effective sewer repair solutions for our friends and neighbors in the community. In this post, we’ll answer questions about exactly what a side sewer is. And we’ll…

The Importance of Regular Sewer Inspections

By Bob Oates | August 18, 2026

Your home’s sewer line does an important job every day, but because most of the system is underground, it can be easy to forget about it until something goes wrong. Unfortunately, sewer line problems don’t always appear suddenly. Tree roots can work their way into small openings, debris and buildup can restrict flow, and aging…

What Causes Recurring Drain Clogs?

By Bob Oates | August 13, 2026

A clogged drain every once in a while isn’t unusual. But if the same drain keeps clogging, or you’re regularly dealing with slow drains and backups throughout your home, there may be more going on inside your plumbing system. Recurring drain clogs often mean that the original blockage wasn’t completely removed — or that another…

How to Tackle Roots in Pipes

By Bob Oates | August 6, 2026

The Pacific Northwest is a beautiful place in which to live and raise a family. However, two of the things that make it beautiful are the trees and rainfall. Unfortunately, these two aspects combined can wreak havoc on your sewer system with the infiltration of tree roots. When you see all the leaves and greenery…

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…

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…

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…

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…

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…

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…

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Serving the Greater Seattle Area