Public-source company research · Seattle, Washington
O’Neill Plumbing Company
A Seattle plumbing contractor researched against its exact BBB and Google business records.
Why this company is included
NHA matched the business name, Seattle street address, telephone number and website across the individual BBB record, official company website and direct Google business listing. The Google listing showed 4.8/5 from 394 reviews, above NHA’s 4.3 threshold, and the matched BBB profile showed an A+ letter grade.
Business and services
The official website describes residential and commercial plumbing services, including fixture repairs, water-heater service, drain and sewer cleaning, repiping, hydro jetting, trenchless sewer repair and underground utility work.
Location reviewed: 6056 California Ave SW, Seattle, WA 98136
Telephone: (206) 932-5283
Company website: oneillplumbing.com
Complaint record and context
When checked on September 25, 2026, BBB displayed one complaint in the prior three years, none closed in the prior 12 months, and marked the displayed complaint resolved. Complaint totals and dispositions can change.
View the matched BBB business profile · View the direct Google Maps listing
Credentials and limitations
Before you hire
- Confirm current licensing, insurance and any service-specific credentials.
- Request a written scope, price, schedule, permit responsibilities and warranty terms.
- Ask how the contractor will document inspections, code compliance and completed work.
- Recheck current customer feedback and complaint history.