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Poly-B-to-PEX Replacement in Kelowna & the Okanagan

A Carefully Planned Upgrade for Greater Confidence in Your Home’s Plumbing

Many homes throughout Kelowna and the Okanagan still contain aging Poly-B water lines. If you know or suspect that your home has Poly-B, Coral can help you understand its condition and explore your replacement options without pressure or alarm.

We begin by inspecting visible and accessible plumbing, identifying where Poly-B is present and discussing the layout of your home. From there, we prepare a clear scope of work for replacing the existing piping with modern PEX and explain any access or restoration requirements before work begins.

Our goal is to complete the upgrade carefully, test the finished system thoroughly and leave you feeling confident in the plumbing that serves your home.



Poly-B Explained

What Is Poly-B Plumbing and Why Does It Matter?

You do not need to understand plumbing to take the right first step. Coral will help you identify what is in your home, explain your options and plan the appropriate solution.

Example of exposed grey water-supply piping running through basement floor joists

An illustrative example of exposed grey water-supply piping. Pipe colour alone cannot confirm that a home has Poly-B.

What Is Poly-B?

Poly-B, short for polybutylene, is a flexible plastic pipe that was commonly installed in Canadian homes from the late 1970s through the mid-1990s. It was used as an affordable alternative to copper and carried hot and cold water to fixtures such as sinks, showers, bathtubs and toilets.

In simple terms, Poly-B forms part of a home’s water-supply system. It is not the same as the larger drain and sewer pipes that carry wastewater away from the home.



How Can I Tell If My Home Has Poly-B?

Poly-B is often grey, although other colours were also produced. Visible sections may sometimes be found under sinks, near the water heater, inside a mechanical room or along the ceiling of an unfinished basement.

Other possible clues include:

  • A flexible plastic water-supply pipe rather than rigid copper
  • Printed markings such as PB2110
  • A home built or substantially renovated during the years Poly-B was commonly used

Much of a home’s plumbing is concealed behind walls and ceilings, so a visual check may not tell the whole story. Coral can inspect visible and accessible piping and help identify what is present.

Residential plumber carefully inspecting exposed grey water-supply piping

A professional inspection is the safest way to confirm the piping visible in your home and understand the next steps.



Why Do Homeowners Consider Replacing Poly-B?

Poly-B is no longer used for new plumbing installations and has been associated with an increased risk of leaks as systems age. Heat, water conditions, pressure, fittings and the quality of the original installation can all affect a plumbing system over time.

Finding Poly-B does not mean you need to panic or that a leak is happening now. It means a professional assessment can help you understand the system, consider your options and plan ahead with greater confidence.



Plumber installing red and blue PEX through a controlled wall opening with floor protection

Careful planning, controlled access and protection of finished spaces are important parts of a professional repiping project.

What Does Poly-B-to-PEX Replacement Mean?

During a Poly-B-to-PEX replacement, existing Poly-B water lines are replaced with modern PEX distribution piping. Coral can also replace aging shutoff valves, supply lines and fixture connections where required.

Before work begins, we explain where wall or ceiling access may be needed and discuss restoration requirements. The goal is to complete the upgrade carefully, protect your home and minimize disruption wherever practical.



A Professionally Planned PEX Upgrade

New PEX piping is routed and secured throughout the home, connected to the required fixtures and valves, and pressure tested when the work is complete.

Coral’s objective is straightforward: replace aging water-supply piping with a carefully installed modern system and leave you feeling more confident in the plumbing that serves your home.

Completed red and blue PEX water distribution system with an organized central manifold

An illustrative example of an organized PEX water-distribution system. The final design depends on the layout and requirements of each home.





Not Sure What Type of Piping You Have?

Start with a professional Poly-B inspection. Coral will review the visible and accessible plumbing, explain what we find and discuss practical next steps without pressure or alarm.

Request a Poly-B Inspection Or Request a Poly-B Replacement Estimate




Complete Plumbing. The Coral Promise.

Building on our trusted reputation for home comfort across Kelowna, Coral Home Comfort now provides complete residential plumbing services. From leak repairs and drain cleaning to water heaters, fixture installations and Poly-B-to-PEX replacement , homeowners throughout the Central Okanagan can count on professional solutions, clear advice and the people-first care Coral is known for.

“Your Comfort. Our Promise.”

Plumbing for Your Whole Home

From leaking faucets and clogged drains to water heaters, fixtures, pressure problems and pipe repairs, Coral is ready to care for the plumbing systems your home needs.

Clear Advice and Options

Whether you need a repair, inspection or complete repipe, we explain what we find in plain language and provide practical recommendations for your home.

People-First Coral Care

Every plumbing call is backed by the integrity, respect and genuine customer care that Kelowna and Okanagan homeowners already associate with Coral.