PEX Piping Upgrade Services in Seattle, King County, and Snohomish County

5 Corners Plumbing offers professional PEX piping upgrades for homes throughout Seattle and the surrounding areas. Whether you’re replacing aging galvanized or copper lines or updating your plumbing system during a remodel, we install durable, high-performance PEX pipe that improves flow and reliability.

Why Upgrade to PEX Piping?

PEX (cross-linked polyethylene) is a flexible, corrosion-resistant material that holds up against pressure changes and temperature swings. It’s ideal for whole-home repipes or targeted upgrades, offering fewer connection points and a longer service life than many traditional pipe types. Upgrading to PEX helps prevent future leaks and improves overall water delivery.

What’s Included in a PEX Piping Upgrade

Our licensed plumbers inspect your current plumbing system and plan a clean transition to PEX piping. We route new lines, secure connections, and ensure your water system is set up to meet your home’s daily needs, without damage to finishes or unnecessary disruptions.

Our Service Covers the Following:

Assessment of existing pipe materials and layout
Installation of new PEX lines for hot and cold water
Secure, leak-free fittings at all connection points
Removal or bypassing of old galvanized or copper pipe
System testing and pressure verification

We also support fixture-related upgrades such as toilet repair services, kitchen faucet replacement, and bathroom faucet replacement during the same project if needed.

Plumbing Replacement You Can Rely On

5 Corners Plumbing is licensed, bonded, and insured, and we’ve helped Seattle-area homeowners upgrade their water systems since 2005. Our team delivers clean, code-compliant repiping work with lasting results and transparent pricing.

Related Fixture and Repiping Services

We also provide the following:

Toto toilet install
Toilet faucet replacement
Garbage disposal replacement
Kitchen sink replacement
Washing machine drain cleaning

We coordinate full fixture updates alongside PEX upgrades for seamless performance across your system.

Serving Seattle, Kirkland, Marysville, and Beyond

Whether you’re replacing old pipework in Kirkland or upgrading a home in Marysville, we offer dependable, local plumbing support. For trusted Kirkland plumbers or a responsive plumber in Marysville WA, 5 Corners Plumbing is here to help.

Book Your PEX Piping Upgrade Today

Upgrade your home’s plumbing system with expert PEX installation from 5 Corners Plumbing. Call or book online today to schedule your service.

FAQs About PEX Piping Upgrade Services

1. What Is PEX Piping and Why Is It a Good Choice for My Home?

PEX, or cross-linked polyethylene, is a flexible, durable pipe material resistant to corrosion and freezing. It’s an excellent replacement for galvanized or copper lines, offering improved water pressure, fewer joints, and a longer service life.

2. When Should I Consider Upgrading to PEX?

If your home still has galvanized or aging copper pipes, or if you experience leaks, low pressure, or discolored water, it’s time to consider upgrading. PEX offers a long-term solution that modernizes your plumbing system and reduces maintenance costs.

3. Can You Replace Only Part of My Plumbing With PEX?

Yes. We can install PEX throughout your entire home or target specific sections, such as kitchens, bathrooms, or laundry areas. Our plumbers ensure new lines integrate smoothly with your existing plumbing.

4. Do You Offer PEX Piping Upgrades Outside Seattle?

We do. 5 Corners Plumbing serves homeowners across King and Snohomish counties, including Kirkland, Marysville, and nearby areas. Wherever you’re located, we provide professional, code-compliant PEX installations designed for lasting reliability.