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Professional plumbing & heating

Poly-B Pipe Removal & PEX Line Installation

Out with the old Poly-B, in with flexible, long-lasting PEX — installed cleanly with minimal disruption to your home.

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The Gravity Difference

Old pipes out. Durable PEX in.

Upgrading from Poly-B to PEX protects your home today and your insurance coverage tomorrow. PEX has become the standard replacement for old Poly-B plumbing lines — it is flexible, resistant to corrosion and freezing, and built to last for decades. We remove your existing Poly-B piping and install new PEX lines using a routing plan that keeps wall and ceiling access to a minimum.

Every connection is made with proper crimp or expansion fittings and colour-coded for hot and cold, then pressure tested before we close anything back up.

Poly-B shows up most often in the older subdivisions of Surrey, Coquitlam and Maple Ridge built during the pipe's peak years of use, though it can turn up in any Lower Mainland home from that era.

Poly-B Pipe Removal & PEX Line Installation — Professional repairs
Professional repairs
Poly-B Pipe Removal & PEX Line Installation — Experienced technicians
Experienced technicians
Poly-B Pipe Removal & PEX Line Installation — Reliable workmanship
Reliable workmanship
24/7 Emergency
response
Know The Facts

How to Spot Poly-B Piping

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  • Grey (sometimes black or blue) flexible plastic pipe, about the diameter of a garden hose
  • Metal crimp or plastic push-fit fittings at every joint, instead of soldered copper
  • A stamp reading "PB2110" or similar printed along the length of the pipe
  • Most common in homes built from the late 1970s through the mid-1990s
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How It Works

Our Removal & Installation Method

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  1. 01

    Shut off and drain the existing Poly-B lines before any work starts

  2. 02

    Careful removal of old Poly-B piping section by section

  3. 03

    New PEX lines routed to minimize wall and ceiling openings

  4. 04

    Proper crimp and expansion fittings used at every connection

  5. 05

    Pressure testing of every line before finishing the job

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The Upside

Why Homeowners Choose PEX

PEX has replaced both Poly-B and copper as the standard for new residential plumbing — here's why.

Freeze & Corrosion Resistant

Resistant to freezing and corrosion in a way aging Poly-B never was.

Flexible Routing

Flexible lines mean fewer joints and fittings that could fail later.

Long Service Life

A much longer service life compared to aging Poly-B piping.

Insurer Preferred

Often preferred, or required, by home insurance providers.

Colour-Coded

Colour-coded piping for easy identification down the line.

Cost-Effective

Typically more affordable to install than rigid copper piping.

Our Promise

Why Choose Gravity Plumbing

Planned Routing

Routing planned in advance to minimize wall and ceiling openings.

Proper Fittings

Proper crimp and expansion fittings used at every single connection.

Pressure Tested

Every line pressure-tested before we close anything back up.

Old Piping Removed

Full removal and disposal of the old Poly-B piping included.

Helpful Answers

Frequently asked questions

Quick answers to the things homeowners ask us most about poly-b pipe removal & pex line installation.

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Both are good, code-compliant options. PEX is typically faster to install, more affordable and flexible enough to route around obstacles with fewer fittings — we can walk you through which makes sense for your home.

We plan the routing to minimize the number of openings required, and can coordinate drywall and patch work once the new lines are in and tested.

Yes, full removal and responsible disposal of the old piping is included as part of the job.

Most single-family homes are completed within a few days, depending on size and how much access is needed.

Replacing Poly-B with PEX is often required or preferred by insurers — we can provide documentation once the work is complete.

Yes — PEX connects to copper or other materials using the correct transition fittings, so a partial upgrade integrates cleanly with what's already in place.

Still have questions?

Our team is happy to walk you through options and pricing — no pressure, no obligation.

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