O'Neill Plumbing

O'Neill Plumbing is a family-owned plumbing company in Seattle, WA, serving residential and commercial customers throughout West Seattle and the greater Seattle area. With over a century of experience since 1917, the company specializes in a full range of plumbing services, including burst pipe repair, sewer cleaning, trenchless sewer repair and replacement, hydro jetting, repiping, water heater and faucet repairs, garbage disposal installation, and electronic pipe locating. They offer emergency service around the clock and are known for their reliable, professional approach to both routine repairs and complex underground utility work. The company maintains a 4.80 rating based on customer feedback, reflecting consistent quality and dependable service.

Founded in 1917 by James O’Neill, O'Neill Plumbing has evolved from a small home-based operation into a trusted local contractor with deep roots in West Seattle. The business was passed through generations, with Tom and Hope O’Neill taking over in 1934 and later being succeeded by their son Terry in 1961. Over the decades, the company has adapted to changing technologies and infrastructure demands, from early electric water heater installations to modern trenchless sewer solutions. Today, the team continues the legacy of quality workmanship, using advanced tools and techniques to minimize disruption while ensuring long-term reliability.

The business is located on California Avenue Southwest, about a quarter mile from Morgan Junction Park and a short distance from Fauntleroy Way Southwest. It sits near the intersection of California Avenue Southwest and Morgan Junction, within walking distance of the Mailbox West post office and the Fairmont Springs neighborhood. The area is characterized by a mix of residential streets and green spaces, with the park and nearby roads forming a key part of the local landscape.

O'Neill Plumbing stands out for its longstanding reputation, technical expertise, and commitment to customer satisfaction. With a history spanning over 100 years, the company is recognized as one of the most dependable plumbing providers in West Seattle, known for prompt response times, honest assessments, and thorough clean-up after jobs. Their consistent service and community presence reinforce their standing as a trusted local resource.

As a cornerstone of West Seattle’s infrastructure support, O'Neill Plumbing remains deeply embedded in the neighborhood, delivering reliable solutions that keep homes and businesses running efficiently.

Services:

• Burst pipe repair
• Hydro jetting
• Trenchless sewer repair
• Underground utilities & construction
• Water heater repair and replacement