Most Trusted Plumber in Covington, WA

Washington State favicon with star for Seattle

CALL (206) 789-4944

Serving the Greater Seattle Area

Book Appointment Online

A powerhouse retail industry, businesses in Covington, WA are able to thrive because of their availability to customers, and having healthy sewer systems is a major component of this accessibility.

Without fast sewer repairs, businesses would need to be closed down for weeks, potentially harming their income. At Bob Oates Sewer and Rooter, we are pleased to offer sewer repair services that are much faster than standard methods, saving our customers time and money by completing the job quickly and efficiently.

Our commitment to detail and satisfaction allows us to do the best work possible, and if you are in need of our sewer repair services, don’t hesitate to call Bob Oates today for help.

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

Give us a call or schedule an appointment anytime!

Image of Bob Oates on the cover of Cleaner magazine

Name
Which days work best for you? (For emergencies or Saturday service please call us directly.)
What arrival time would you prefer?

Happy customer and holding doggie
five stars favicon

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!"

Contact Bob Oates
BOMA King County favicon

Proud Member of BOMA

Bob Oates Plumbing Truck in Downtown Seattle near Pike Place Market

Pipe Issues Seattle Homeowners Shouldn’t Ignore

By Bob Oates | May 12, 2026

A hidden pipe problem can turn into a major sewer repair before most homeowners even realize something is wrong. Slow drains, recurring backups, foul odors, or unexplained wet spots in the yard are often signs that a sewer line is beginning to fail. And in many Seattle-area homes — especially older properties with clay or…

Close up of flooded lawn from sewer backup, water covering grass

How Spring Can Lead to Sewer Backups

By Bob Oates | May 5, 2026

Spring in Seattle brings its own set of troubles to the sewer system. In the springtime, sewer backups are most common because of the thawing snow and seasonal rain. The ground is usually too frozen to soak up the water from the rainy season. This results in water leaking into the walls and basements of…

Graphic of positive slope, no slope, and negative slope

Signs of a Sewer Line Belly (And What To Do)

By Bob Oates | May 1, 2026

Every homeowner’s goal is to maintain a comfortable and safe environment. However, unexpected plumbing issues — and a sewer line belly is pretty high on that list — can quickly disrupt that peace. Conducting proper, regular sewer inspections are key to healthy drainage and sewage systems staying that way. They’re also essential, once a problem…

Portable sewer inspection camera used to inspect underground pipes through a cleanout

Importance of Sewer Inspections (And Why They Can Save You Thousands)

By Bob Oates | April 29, 2026

Your sewer line is one of the most important — and most overlooked — systems in your home. Because it’s buried underground, problems often go unnoticed until something goes wrong: slow drains, recurring clogs, or even a full sewer backup. By that point, repairs can be expensive, disruptive, and stressful. That’s why regular sewer inspections…

Two technicians working with high pressure water jetter

High Pressure Water Jetting in Seattle: Do You Need It?

By Bob Oates | April 28, 2026

Clogged drain and sewer lines don’t usually happen overnight. Most problems build slowly — grease, sludge, soap residue, and debris accumulate along pipe walls until water can no longer flow freely. When basic drain clearing isn’t enough, high-pressure water jetting (also known as hydro jetting) is one of the most effective ways to fully restore…

Bob Oates technicians standing by their trucks outdoors

Side Sewer Contractor: Everything You Need To Know

By Bob Oates | April 27, 2026

Bob Oates Plumbing, Sewer & Rooter is a registered side sewer contractor serving the City of Seattle and all surrounding areas. For 30+ 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…

Bob Oates Sewer and Rooter work trucks

Is Pipe Lining a Long-Term Solution? What Seattle Homeowners Should Know

By Bob Oates | April 24, 2026

If you’re dealing with sewer line issues, you want more than a temporary fix. Trenchless sewer pipe lining is considered a long-term solution when the existing pipe is structurally sound — and in many cases, it can extend the life of your sewer system by 50 years or more. How Pipe Lining Strengthens Your Sewer…

Bob Oates Plumbing, Sewer & Rooter trucks parked at a residential service call in Seattle

Main Issues We Address With Pipe Lining (Seattle Homeowners Guide)

By Bob Oates | April 22, 2026

Sewer line issues don’t always mean excavation. With trenchless sewer pipe lining, many common pipe problems can be repaired from the inside — avoiding the need to dig up your yard, driveway, or landscaping. At Bob Oates Plumbing, Sewer & Rooter, we use pipe lining to address several of the most frequent sewer issues seen…

Bob Oates technicians preparing a blue CIPP liner for trenchless sewer repair.

How Trenchless Pipe Lining Came To Be (And Why It’s a Go-To Sewer Repair Solution Today)

By Bob Oates | April 13, 2026

Sewer problems are something most homeowners don’t think about — until they’re dealing with a slow drains, backups, or worse. For decades, fixing a damaged sewer line meant one thing: digging. Lawns torn up, driveways broken apart, and days (or weeks) of disruption. Today, there’s a better option. Trenchless sewer repair — including trenchless pipe…

Bob Oates Plumbing, Sewer & Rooter van parked at a residential job site in the Greater Seattle Area, with sewer repair equipment set up nearby.

Do I Need a Video Inspection for My Seattle Sewer Line Repair?

By Bob Oates | April 8, 2026

When something goes wrong with your sewer line, the last thing you want is guesswork. Sewer problems happen underground, out of sight — and without the right tools, it’s nearly impossible to know what’s actually causing the issue. That’s where a professional sewer camera inspection comes in. At Bob Oates Plumbing, Sewer & Rooter, we…

Washington State favicon with star for Seattle

CALL (206) 789-4944

Serving the Greater Seattle Area

Book Appointment Online