O'neill Plumbing Co
Licensed general contractor, plumber in Seattle, Washington
O'neill Plumbing Co holds Washington L&I licence ONEILPC793ND, active, licensed since 26 Jul 2021, rated 4.8 from 398 Google reviews. Bonded for $6,000 with Merchants National Bonding Inc. No complaints on the Washington L&I record.
Report card
- Licence activeWashington L&I #ONEILPC793ND, Journey Level. Issued 26 Jul 2021, expires 26 Jul 2027.
- Licensed 52 yrsSince 17 Mar 1975.
- Bonded$6,000 with Merchants National Bonding Inc, since 28 Sep 2026. Washington sets the bond by licence type ($30,000 for a general contractor, $15,000 for a specialty contractor, $4,000 for an electrical contractor), so the amount shows the kind of licence, not the size or quality of the business.
- Liability insuredMiddlesex Insurance Company, $1,000,000, valid to 1 Aug 2027.
- No complaintsNone on the Washington L&I record.Washington L&I record
- BBB AccreditedIts BBB rating, complaints and reviews are on its Better Business Bureau profile.BBB profile Complaints Reviews
- 12 building permits since 2020Naming this business as the contractor (City of Bellevue), most recently 7 Aug 2026.
Checked against the Washington State Department of Labor & Industries (L&I) register on 4 Nov 2026.
Google reviews
4.8(398 reviews)Jackie Brown★★★★★ a month agoView on Google
The entire team at O’Neill is outstanding! We met with Nelson who assessed the issue, gave us two very good options to choose from and then was able to squeeze us in for a large, emergency repair. Mike and Mike who managed the repair for us were fantastic! They treated the repair and our home as if it were their own. Great attention to detail and white glove service throughout the process! Lastly, Julie in the office…
James Williams★★★★★ 5 months agoView on Google
Mike and Mike were great! Extremely quick to arrive, super professional, and very pleasant to work with. I had a break between the water meter and the house with an irrigation connection elbow joint. The fixed it quickly eith copper and pointed out a potential future problem with a shark bite connector and replaced that with copper for me too. This is the third time I've used O'Neill, much much better experiences tha…
Robert Smith★★★★★ 3 months agoView on Google
This is the second time I have used O'Neill Plumbing and I will definitely use them again. I was able to secure a quick appt (thank you!) and Jordan fixed my problem with no hassle. He was professional and took great care of my home. I recommend them if you are looking for an excellent, dependable plumbing co.
J Roberson★★★★★ a month agoView on Google
We have used O'Neill Plumbing for all our plumbing needs ever since purchasing our house a few years ago. We have always been 100% satisfied with the service we receive, whether the job is an upgrade or a repair. Technicians are always friendly, skilled, and understanding of our needs. Our most recent experience with Jordan continued to meet that high expectation. I look forward to many more years of relationship…
Alexandra Starr★★★★★ 4 months agoView on Google
Excellent! We called O’Neill because we needed a gas pipe moved on our deck so we could fit our grill outside. We worked with Ricky and Hunter-they got the job done in half the time we were told, they were very professional, went above and beyond for our family. Good communication, and very easy to work with. Definitely recommend O’Neill plumbing!
Read all 398 reviews on Google Reviews and photos from Google, 4 Nov 2026.
Recent permits
Building permits pulled under licence #ONEILPC793ND, from City of Bellevue open data, which names contractors up to 3 Nov 2026. Locations are shown to ZIP code only.
- 7 Aug 2026 · Side Sewer Connection · ZIP 98006A Single Family Residential Utility Modification Side Sewer Repair Only
- 11 Feb 2026 · Plumbing No Plan Review · ZIP 98004A Single Family Residential Addition to Existing Structure None Project Involving (1 Kitchen Sink)
- 18 Jul 2024 · Plumbing No Plan Review · ZIP 98008A Single Family Residential Repair or Replacement None Project Involving (1 Water Service - 1")
- 20 Jun 2024 · Mechanical No Plan Review · ZIP 98006A Nonresidential Repair or Replacement None Project Involving (1 Water Heater < 60 gallons)
- 20 Jun 2024 · Plumbing No Plan Review · ZIP 98006A Nonresidential Repair or Replacement None Project Involving (1 Water Heater Electric < 60 gallons)
Why it ranks #3 of 2,055 general contractors in Seattle
Score 96.2 / 100. Claiming this listing or using Theo never changes it. How we rank
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