Professional Drain Inspections in Seattle, WA, and Surrounding Areas

CALL (206) 789-4944

Serving the Greater Seattle Area

five stars favicon

Rated 5 Stars by Ken X. on Google

"I had a suddenly leaking drain which connects to kitchen disposal. I called them around 9am in the morning and they were able to come in at 11am. Work was done within 1 hour and the drain was fixed. Highly recommend this company if you are unlucky to get into leaking situations."

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.

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.

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 jetting that cleans and restores the pipe's full 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.

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

Posted on Google Google
Santi Allende profile picture
Santi Allende
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
They are super easygoing, extremely knowledgable, and not sales-y at all. It's difficult to come by honest and reasonably priced plumbers these days, and so I was really happy to work with them. Also supporting a small family business! They did a solid diagnostic assessment before proposing any work to fix the water pressure in our house. Would highly recommend!
Posted on Google Google
Alyson Mosher profile picture
Alyson Mosher
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
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!
Posted on Google Google
Heather Jay Gee profile picture
Heather Jay Gee
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I had Bob Oates come for an estimate and they far and away beat every estimate. Konrad did  the work and I was very impressed with the work, communication, and professionalism. I will be use Bob Oates from now on.
Posted on Google Google
Klodian Muca profile picture
Klodian Muca
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I’d be happy to recommend this plumbing company to anyone. They responded to my call quickly, showed up on time, and did an outstanding job on the plumbing work in my home, including my sinks and other maintenance. Their workmanship was excellent, everything was done professionally, and they stand behind their work with a 100% warranty, which gave me great peace of mind. It’s hard to find a company that is this reliable, honest, and responsive. This has been the best plumbing service I’ve ever experienced. I will definitely use them again and recommend them to all my friends and family. ⭐⭐⭐⭐⭐
Posted on Google Google
jamie lawler profile picture
jamie lawler
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Had the pleasure of being helped by Autumn today. She was friendly, professional, and very knowledgeable about the services this company offers. I wasn’t quite sure what would be right for me, as I’ve never dealt with major plumbing issues before, but she was able to help me choose the services that would best suit my needs. I appreciate her answering all of my silly questions in a way that I could understand. I will definitely be recommending Bob Oates to my friends and family. Thank you, Autumn!
Posted on Google Google
Jason Voiss profile picture
Jason Voiss
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
I just had Henry and Jesse come over to my condo to help me out with a leaking dishwasher... these guys were rockstars! They gave me a courtesy call and were here on time to the minute! Total professionals as soon as they entered the door, asking about my shoe policy and just pleasant people! As I fumbled around to find my dishwasher literature, they already had it pulled up and were running an initial cycle to troubleshoot the problem. Within minutes Henry diagnosed the problem, the two excused themselves to grab a few tools and were back in moments... it couldn't have been more than 10 minutes and they had resolved the problem and were running a cycle to verify their work. They gave me some additional feedback on what may have caused the issue, how to avoid it in the future, and then proceeded to humor me by answering a few unrelated questions I had about my washer. Great guys and great experience! This is now my second time dealing with the Bob Oates team and both times have been a great experience... Local, first rate service, and family owned; I'd recommend them to anyone! Whether you're a GC or a homeowner, having a great plumber in your Rolodex is a must; Bob Oates is my go to and should be yours as well!
Posted on Google Google
Erin Anderson profile picture
Erin Anderson
Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google.
Bob Oates Plumbing came recommended by our neighborhood, well-known real estate agent. We have used them a few times-once for a clogged kitchen sink situation and also for kitchen faucet installation. They have been timely, honest, knowledgeable and nice guys who make sure the job is done right. They can also order fixtures/products for you and they will install. Highly recommend!

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…

What Counts as a Plumbing Emergency?

By Bob Oates | September 12, 2026

A dripping faucet probably doesn’t require a plumber in the middle of the night. Water pouring from a burst pipe certainly does. But plenty of plumbing problems fall somewhere in between. When something suddenly goes wrong, homeowners often have to make a quick decision: Can this wait until tomorrow, or do I need an emergency…

Risks of Delaying Sewer Repairs

By Bob Oates | September 8, 2026

Your sewer line is largely out of sight, which can make it easy to put off dealing with a problem — especially when the symptoms seem minor. A slow drain clears up. An occasional sewer odor disappears. A backup happens once and doesn’t immediately return. It can be tempting to assume the problem has resolved…

CALL (206) 789-4944

Serving the Greater Seattle Area