O'Neill Plumbing

Historical background

• 1917: O'Neill Plumbing is founded by James O'Neill in West Seattle. As demand for indoor plumbing grows, the company establishes its first shop near what is now Husky Deli at the West Seattle Junction.
• Late 1920s–1930s: Tom O'Neill joins the business. Despite challenging economic times, the company continues to operate as a local community plumber.
• 1938–1940: A contract with City Light and the promotion of electric water heaters lead to a surge in work. The staff grows to about six employees, focusing on installing electric water heaters, removing stove coils, and repiping.
• 1961: Tom and his wife Hope's son Terry O'Neill takes over the business, with help from his wife Wendy.
• 1980s: Tim O'Neill, representing the fourth generation, joins the company and helps grow the underground utility side of the business. He becomes a registered side sewer contractor with the City of Seattle.
• Over time, the company expands to a staff of around 25 people with multiple trucks and equipment, including a dedicated crew for underground utilities.

Recent ownership

• 2013: Tim and his wife Stephanie purchase the business from Terry and Wendy.
• 2025: Tim and Stephanie sell O'Neill Plumbing to long‑time employee Tyler Blanchard and his wife Katie, who continue to operate the company as a locally owned, family‑run business.

Current operations

Today, O'Neill Plumbing operates three main divisions:

• Service – day‑to‑day plumbing repairs and maintenance
• Contracting – larger plumbing projects and installations
• Underground utilities – sewer lines, water service lines, and related infrastructure

O'Neill Plumbing focuses on serving West Seattle and nearby communities while also covering the greater Seattle area and the Eastside.

Licensing

• Washington contractor license number (as listed on the website): ONEILP*253DP

O'Neill Plumbing offers a wide range of general plumbing work, including:

• Burst pipe repair
• Electronic pipe locating
• Faucet repairs and installation
• Garbage disposal repair and installation
• Low water pressure diagnostics and repair
• Toilet repairs
• Toilet replacement and new toilet installation
• Water heater repair and replacement (tank and tankless systems)
• Water service line repair and replacement
• Leak and drip troubleshooting
• General fixture installation and replacement
• Whole-home repiping

These services cover everyday plumbing needs as well as more involved repair projects for homes and small commercial properties.

Who O'Neill Plumbing serves

• Homeowners in West Seattle
• Customers throughout the greater Seattle area
• Eastside customers (for example Bellevue and surrounding communities)
• Small businesses and light commercial properties needing plumbing service

How to request service

Customers can:

• Call the West Seattle office at 206-932-5283
• Call the Eastside/Bellevue line at 425-455-0560
• Use the online contact form on the O'Neill Plumbing website

For urgent problems, customers are encouraged to call so the team can discuss current availability and next steps.

O'Neill Plumbing provides specialized underground utility and sewer services for residential and light commercial projects in West Seattle, the greater Seattle area, and the Eastside.

Types of underground and sewer services

O'Neill Plumbing's underground utilities and construction services include:

• Sewer cleaning – clearing blockages and buildup in sewer lines
• Hydro jetting – using high‑pressure water to remove grease, scale, roots, and debris from pipes
• Trenchless sewer repairs and replacement – repairing or replacing damaged sewer lines with minimal surface disruption
• Sewer repairs and pipe lining – traditional and trenchless methods to rehabilitate cracked or leaking sewer pipes
• Point repair – trenchless repair of a specific damaged section of a sewer or water line without replacing the entire pipe
• Burst pipe repair – locating and repairing burst or broken underground pipes
• Repiping – replacing aging or damaged piping systems to improve reliability and water flow
• Water service repair and replacement – diagnosing and repairing issues with underground water service lines, including leaks and corrosion
• Underground utility installation for new construction – installing new water and sewer connections for residential and light commercial projects

Project types and capabilities

• Residential and light commercial underground utility work
• Side sewer and main sewer line repairs
• Trenchless solutions designed to minimize digging and disruption
• Code‑compliant installations focused on long‑term reliability

Customers with sewer, drain, or underground utility concerns can call O'Neill Plumbing to discuss inspection and repair options, including trenchless methods where appropriate.

• Email: info@oneillplumbing.com
• Mailing / office address:

O'Neill Plumbing 6056 California Ave. SW Seattle, WA 98136

Service area

O'Neill Plumbing is based in West Seattle and serves:

• West Seattle
• The greater Seattle area (including neighborhoods such as Downtown, Queen Anne, U‑District, Northgate, Magnolia, Ballard, Burien, Des Moines)
• The Eastside (including Bellevue and nearby communities)

Emergency and urgent service

The website highlights emergency service and encourages customers to call when they need help. Specific business hours are not listed on the website. Customers with urgent plumbing issues should call one of the phone numbers above to confirm current availability and response times.

Online contact

Customers can also reach O'Neill Plumbing using the contact form on the company website if their request is not time‑sensitive.

Ask anyway — the agent will say plainly that it is not published rather than guess.