If your home was built between the late 1970s and mid-1990s, there is a strong chance it contains Polybutylene (Poly-B) piping — a material once marketed as a cost-saving innovation that is now widely recognized as a catastrophic failure waiting to happen. Poly-B degrades from the inside out, and by the time visible signs appear, serious damage may already be occurring behind your walls.
Don’t wait for an insurance denial letter. We provide full repiping to keep your home fully insurable.
Secure your home’s plumbing and keep your insurance valid. Poly-B pipes are a ticking time bomb that degrade from the inside out. Gator Plumbing specializes in minimally invasive Poly-B to PEX repiping across Vancouver, Surrey, and the Fraser Valley. Don’t wait for a catastrophic burst—upgrade your system today.
✅ Fully Insured & Licensed ✅ Minimal Wall Cutting ✅ BC Building Code Compliant
Not sure if your home has Polybutylene pipes? Here is a quick checklist to help you identify them before they become a costly problem.
Poly-B pipes are most commonly light grey, but they can also be found in black, blue, or silver.
Look for a continuous code stamped along the side of the plastic pipe. If it says "PB2110", it is Poly-B.
Check exposed pipes near your water heater, under your kitchen or bathroom sinks, or at the main water shut-off valve.
Unlike copper or modern PEX, Poly-B reacts poorly to the chlorine and oxidants found in BC’s municipal water supply. Over time, this chemical reaction causes the interior pipe walls to become brittle, develop micro-fractures, and eventually crack or burst — often without any warning.
The interior of a Poly-B pipe begins breaking down long before any external signs appear. The pipe walls slowly thin, flake, and develop micro-fissures. By the time you notice discoloured water or a drop in water pressure, the damage is already advanced. This is why Poly-B is often called a 'ticking time bomb' — the failure is invisible until it isn't.
Most Poly-B systems used plastic push-fit fittings or aluminum crimp rings. These fittings are known to crack under standard water pressure and are especially prone to failure at elbows, tees, and connections near hot water supply lines. Fitting failures can cause sudden, high-volume leaks that flood walls and ceilings in minutes.
Hot water accelerates the breakdown of Poly-B significantly. The cycling between hot and cold causes the pipe to expand and contract repeatedly, which weakens connections and causes the interior walls to deteriorate faster. Leaks are most common near water heaters, dishwashers, and hot water supply lines — the areas under the
Replacing your entire plumbing system sounds overwhelming — but Gator Plumbing has refined the process to be fast, clean, and far less disruptive than most homeowners expect. Here is exactly how we work:
Poly-B deteriorates from the inside out. There is no reliable way to predict when it will fail — only that, statistically, it will. Waiting until a pipe bursts means dealing with water damage, mold remediation, emergency plumbing fees, and potential displacement from your home. The cost of proactive replacement is a fraction of what emergency restoration costs.
We replace failing Poly-B with industry-standard PEX (Cross-linked Polyethylene). Here is why PEX is the ultimate choice for BC homes.
| Feature | Old Poly-B Pipes ❌ | New PEX Pipes ✅ |
|---|---|---|
| Chlorine Resistance | Degrades quickly, becomes brittle | Highly resistant to chlorine damage |
| Flexibility & Freezing | Prone to cracking under stress | Expands if frozen, preventing bursts |
| Home Insurance | Often denied or high premiums | Fully approved, lowers premiums |
At Gator Plumbing & Drainage, we believe an informed homeowner is a protected homeowner. Here are the most common questions we receive about Poly-B pipe replacement across the Lower Mainland.
Poly-B pipes are typically grey, flexible plastic and are often stamped with ‘PB’ or ‘Polybutylene.’ Check under sinks, near your hot water tank, and in your utility room or crawl space. If your home was built between 1977 and 1995, there is a high probability it contains Poly-B. Gator Plumbing offers professional identification inspections if you are unsure.
Poly-B reacts chemically with chlorine and other oxidants in municipal water, which causes the interior pipe walls to become brittle and develop micro-fractures over time. Thermal stress from heating cycles accelerates this process. The pipe degrades from the inside — it can look fine externally while it is on the verge of failure internally.
This depends on your insurer and policy. Many BC insurers — including Intact, Aviva, and TD Insurance — now limit or deny claims for water damage caused by Poly-B piping failure. Some policies may be voided entirely if Poly-B is not disclosed. We recommend contacting your insurer directly and requesting written confirmation of your current coverage status.
Patching one section of a Poly-B system provides only temporary relief. If one section has degraded to the point of failure, the rest of the system is at a similar stage. Insurers also do not treat partial repairs as equivalent to full replacement, so your coverage risk remains. Full repiping is the only permanent and insurance-accepted solution.
Most standard-sized homes (1,500–2,500 sq ft) can be fully repiped in 2–4 days. Larger homes or those with complex plumbing layouts may take longer. We will give you a precise timeline during your free assessment before any work begins.
In most cases, no. While water will be shut off for portions of each day, Gator Plumbing schedules work to minimize disruption. Most homeowners remain in their homes throughout the process. If your situation requires a full shutdown for an extended period, we will discuss this with you in advance.
The cost of a full Poly-B repipe in the Lower Mainland typically ranges from $8,000 to $20,000+ depending on the size of the home, accessibility, and number of fixtures. We provide upfront, itemized quotes with no hidden fees. Many homeowners find the cost comparable to — or less than — the deductible and remediation costs following a burst pipe.
Yes. A plumbing permit is required for full Poly-B repiping in all Lower Mainland and Fraser Valley municipalities. Gator Plumbing handles all permit applications on your behalf and ensures the work passes final inspection — giving you documentation to provide your insurer and future buyers.
Polybutylene (Poly-B) is a plastic piping material installed in Canadian homes between the late 1970s and mid-1990s. While it was a cost-effective alternative to copper, Poly-B has proven to be highly unreliable. It is prone to bursting when exposed to hot water, chlorine, or high pressure.
Many insurance providers in BC have flagged Poly-B as a high-risk material. Don't let a voided policy catch you off guard.
Detailed repipe estimates accepted by major insurers.
We specialize in "turn-key" repiping. We don't just replace pipes; we handle the drywall and cleanup so your home looks like new.
Get a complete turn-key solution quote.
You likely have Poly-B in your home if it was built between 1978 and 1998. Here is exactly what to look for:
We can perform an inspection to verify.
A Poly-B burst can flood a home in minutes. Shut off your main water valve immediately and call us.
We are available 24/7 for burst pipes.
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