Professional Drain Inspections in Seattle, WA, and Surrounding Areas

CALL (206) 789-4944

Serving the Greater Seattle Area

Fast answers. Clear diagnostics. No guesswork.

If you’re noticing foul odors, recurring backups, or slow-moving sinks and showers, a professional drain inspection is the quickest way to understand what’s happening inside your pipes — before a small issue becomes a costly repair.

At Bob Oates Plumbing, Sewer & Rooter, our licensed technicians use high-resolution drain cameras to pinpoint the exact cause of your plumbing symptoms. With over 30 years of experience serving the Greater Seattle area, we deliver accurate diagnostics, upfront guidance, and long-lasting solutions you can trust.

Why Drain Inspections Matter

Plumbing issues often start small and out of sight. A drain inspection:

  • Reveals hidden clogs, cracks, corrosion, and root intrusion

  • Confirms whether simple cleaning will resolve the problem

  • Helps prevent future backups or water damage

  • Gives you clear footage and recommendations — no guesswork

Before we clean or repair any line, we inspect it first. That’s how we ensure the right fix the first time, every time.

How Our Drain Inspection Process Works

1. Locate the Problem

Using a waterproof, high-definition camera, our technicians inspect your drains from the nearest cleanout or P-trap. This allows us to see:

  • Grease buildup or scale

  • Tree roots invading the line

  • Misaligned joints or bellies

  • Cracked, corroded, or collapsed sections

We can also pinpoint the depth and exact location of any issue using locator tools.

2. Clean the Line (If Needed)

If we find a blockage or buildup, we’ll clear the line using either:

  • Professional snaking — effective for most household clogs

  • Hydro jetting — high-pressure water cleaning that restores full pipe diameter

Every cleaning is followed by a second camera inspection to verify that the line is fully clear.

3. Recommend Repairs (When Necessary)

If camera footage reveals cracks or structural damage, our team may recommend a trenchless repair solution such as CIPP lining.

This no-dig method installs a new epoxy-coated liner inside the existing pipe, creating a smooth, durable interior surface with minimal disruption to your home.

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

Our technicians arrive in fully equipped Bob Oates service vehicles to handle sewer, drain, and plumbing issues.

When to Schedule a Drain Inspection

A quick camera check can save you time and money if you notice:

  • Slow or standing water in sinks, showers, or tubs

  • Persistent gurgling sounds

  • Sewage odors in bathrooms, basements, or yards

  • Evidence of past backups

  • Older plumbing or previous root issues

  • A new home purchase — especially in Seattle’s older neighborhoods

If you’re unsure, call us — we’re happy to give honest guidance over the phone.

Image of Bob Oates on the cover of Cleaner magazine

Why Seattle Homeowners Choose Bob Oates

  • Local, in-house technicians — never subcontractors

  • Fast response times across King, Snohomish & Pierce counties

  • Modern diagnostic technology for precise results

  • Upfront pricing & transparent recommendations

  • Home of the second opinion — we’ll review other estimates for free and offer a competitive bid of our own

We believe in doing things the right way: people helping people, with integrity and professionalism on every call.

Related Services

Schedule an Drain Inspection Today

If something doesn’t smell right — or flow right — we can help.

Call now or fill out our online form to schedule a drain inspection with a licensed Bob Oates technician. We proudly serve homeowners and businesses throughout:

FAQs About Seattle Drain Inspections

What is a drain inspection?

A drain inspection uses a specialized camera to look inside your home’s drains and connecting sewer lines. It helps locate clogs, cracks, root intrusion, and other issues before they become emergencies.

When should I schedule a drain inspection?

You should consider one if you have frequent backups, slow drains, foul odors, or after purchasing an older home in Seattle. It’s also recommended if trees are near your sewer line.

What problems can a drain inspection reveal?

It can identify grease buildup, scale, root intrusion, misaligned joints, small cracks, and collapsed sections of pipe, along with the pipe’s condition and material type.

How long does a drain inspection take?

Most inspections take about an hour. We provide video footage and a summary of findings so you know exactly what’s happening underground.

Can a drain inspection prevent costly repairs?

Yes. By catching small problems early, inspections help prevent major blockages or damage that could lead to expensive repairs or sewer replacements.

Coupon for $50 off any interior drain cleaning

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!"

BOMA King County favicon

Proud Member of BOMA

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…

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…

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…

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…

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…

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…

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…

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…

Why Bob Oates Sewer & Rooter Is Your Go-To Seattle Plumber

By Bob Oates | March 29, 2026

Finding a reliable plumber in Seattle isn’t just about fixing a leak — it’s about trusting someone with your home, your property, and often a significant investment. At Bob Oates Plumbing, Sewer & Rooter, we’ve spent more than 30 years helping homeowners across the Greater Seattle area solve everything from clogged drains to full sewer…

When Is Sewer Line Replacement Necessary?

By Bob Oates | March 22, 2026

Your sewer line isn’t something you think about every day — until something goes wrong. And when it does, the question becomes clear: Can this be repaired… or does it need to be replaced? While many sewer issues can be fixed with targeted repairs, there are situations where a full sewer line replacement is the…

CALL (206) 789-4944

Serving the Greater Seattle Area