Pro Business

O'Neill Plumbing

Seattle Plumbers
Ranked #9 in Seattle | Grade B-
4.80 (349 reviews)

O'Neill Plumbing

O'Neill Plumbing is a Seattle-based plumbing company providing repairs, installs, and drain and sewer services. Contact the office for scheduling, pricing, and current service availability.

Why Homeowners Choose This Business

Seattle-based, available 24/7, and widely reviewed for reliable service. They handle both small repairs and complex sewer and drain work. Easy to reach by phone with clear location details in West Seattle.

Service Area

Headquartered in West Seattle and serving the greater Seattle area, including nearby neighborhoods.


How This Business Compares

A quick local comparison based on ranking, review strength, and market visibility.
  • Shows strong customer satisfaction signals based on review quality and volume.

Trust Signals

Emergency Service - Open 24/7 for emergency plumbing needs.

Services Covered

  Plumbing Services
  Service
  Drain Cleaning
  Emergency Plumbing
  Water Heater Services
  Sewer Repair
  Sewer Services
  Fixture Installation
  Side Sewer Services
  Commercial Service
  Water Heater Repair
  Leak Detection
  Residential Service
  Installations
  Pipe Repair
  Repairs
  Commercial Plumbing
  Residential Plumbing
  Clog Removal
  Hydro Jetting

General plumbing repairs, fixture installs, water heater service, drain cleaning, sewer and side sewer repairs, leak detection, pipe repair, and maintenance checks for residential and commercial properties.


Recent Reviews

4.80

(Based on 349 reviews)

Google rating 4.80 from 349+ reviews highlights consistent, responsive service and quality work.

Google Review
Van Nelson on O'Neill Plumbing

We had our main sewer line replaced. The O’Neill team was the most professional and conscientious group I have ever had the pleasure of hiring, and also a great group of people. They were like surgeons operating in my small yard. When they finished, the garden looked better than before they started! I highly recommend Oneill Plumbing.

The office-home unit I currently use had not been updated for many years and required major repairs. This included work on two toilets, the sink, shower, and hot water system—and on top of that, the water heater was located in a very inefficient spot, which made the job even more challenging.

Despite all of this, everything was handled quickly, carefully, and professionally. Ricky Gillespie and Hunter were not only highly skilled but also extremely friendly and pleasant to work with.

Both of them were wonderful, and I will definitely request Ricky and Hunter again for any future repairs.

Thank you very much for your excellent service.

Google Review
Kenneth Poston on O'Neill Plumbing

My first time using O'Neill Plumbing service and was very much impressed with the quality of customer service; to wit: had an early appointment confirmed, however, plumber called in sick and dispatch advised would be later. The new time (same day) was amenable, and they arrived 15 minutes early. Ricky and Hunter were very professional, as they proceeded to clear my drains. The cost was reasonable and communication was great. At this juncture, I would not hesitate to recommend them to others for plumbing needs.

Google Review
Linda Grimes on O'Neill Plumbing

We recently discovered we had a leak in our water service line into the house as evidenced by a water bill 200% higher than normal. Having used O'Neill Plumbing previously with good results, I gave them a call. They came out quickly, gave us a price and started on the repair quickly. The crew (Mike M, Mike and Jesus) were great to work with. They knew what they were doing, worked efficiently, protected the landscaping and cleaned up after the job was completed. We would not hesitate in recommending O'Neill Plumbing.

Google Review
Gus Catalano on O'Neill Plumbing

I've hired o'neill for a bunch of smaller projects over the years with great success. Most recently I hired them for a big project of a gas line upgrade, hooking up a generator, hooking up a tankless water heater and a whole house water shut off. I had the pleasure of working with Tyler, Ricky, Hunter, Colin and Bill throughout the project.

It went really smoothly, they left the place clean, the pipes were run well organized and neatly across the space and they took the time to address the minor concerns I had.

I love working with them and I'd hire them again anytime. It's clear why they've been around for so long they're amazing at what they do.


Special Offers

Emergency Service

Emergency service may be available for urgent issues.


Frequently Asked Questions

Yes. Listings indicate the business is open 24 hours a day, seven days a week for urgent plumbing needs. Call the main number to confirm availability and response times for your location.

They handle common repairs, fixture replacements, water heater service, drain cleaning, and side sewer work. Both residential and commercial services are available depending on the project.

Call the office or start through the website to discuss your issue and timing. Photos or a brief description can help them suggest next steps or schedule a visit.

Yes, sources note experience with sewer and side sewer repairs in Seattle’s older housing stock. They can assess conditions and recommend repair or replacement options.

They are based in West Seattle and serve the greater Seattle area. Coverage can vary by job type, so confirm your neighborhood when you call.
 Verified Listing

Opening Hours


  • Monday Open 24 hours
  • Tuesday Open 24 hours
  • Wednesday Open 24 hours
  • Thursday Open 24 hours
  • Friday Open 24 hours
  • Saturday Open 24 hours
  • Sunday Open 24 hours

Request Service


Business Details


Business Rating
4.80 (349 reviews) Pro Business
Address
6056 California Ave SW, Seattle, WA 98136, USA, Seattle, WA 98136, US
Business Type
plumber
City Page

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