What is Poly B Plumbing and Why Is It a Problem?
As a Calgary homeowner, understanding the risks of Poly B plumbing is no longer optional—it’s essential to protect your property, insurance eligibility, and long-term resale value. Polybutylene pipes, commonly called Poly B, were used in tens of thousands of Canadian homes and have become a red flag for insurers, buyers, and plumbing professionals alike. Recognizing the signs and knowing what action to take could save you thousands in future repair costs and potential insurance claim denials.
If you are a Calgary homeowner dealing with Poly B pipes, you are not alone — thousands of homes in the city were built with this outdated plumbing. Urban Piping specializes in Poly B Replacement Calgary and has helped over 3,000 homeowners make the switch. Ready to get started? Call (403) 988-3801 for your free estimate.
The history and usage of Poly B (polybutylene) pipes
Poly B, or polybutylene piping, was widely installed in residential homes across North America between 1985 and 1997. It gained popularity due to its affordability, flexibility, and ease of installation compared to copper. In Calgary, Edmonton, and surrounding communities, entire suburbs were developed with Poly B plumbing as a standard. However, over time, widespread reports of failures and burst pipes led to growing concern and subsequent disuse of the material.
Common failure issues and leak risks
The primary issue with Poly B is its chemical instability. These grey plastic pipes tend to degrade when exposed to high water pressure, chlorine, or extreme temperatures—common in Canadian plumbing systems. Cracks, splits, and sudden pipe bursts have been reported across numerous Calgary neighborhoods. Repeated insurance claims and improper repairs have caused insurers to label homes with Poly B plumbing as high-risk.
“Over time, Poly B becomes brittle, leading to sudden leaks and water damage.”
Want to see how we have helped Calgary homeowners just like you? Browse our Calgary Poly B case studies and resources to see real projects, real results, and why thousands trust Urban Piping for their Poly B replacement.
How to identify Poly B in your home
Poly B pipes are typically light grey and flexible, often found in mechanical rooms, connected to your hot water tank, or beneath sinks. If you notice grey tubing in your basement or laundry room, there’s a strong chance your plumbing includes Poly B. Pipes may be labeled with ‘PB2110,’ which is a clear identifier. A professional inspection by Urban Piping can confirm your pipe type and assess for potential damage or insurance concerns.
Don’t wait for a pipe burst or rejected claim to take action—know what’s behind your walls now and safeguard your home’s value and safety.
Does Having Poly B Plumbing Affect Calgary Home Insurance?

Urban Piping expert assesses high-risk poly b plumbing, helping Calgary homeowners address insurance requirements.
If your home still contains polybutylene pipes, your insurance policy in Calgary could be in jeopardy. Many homeowners are unaware that their piping system may directly impact their insurance eligibility, premiums, and even future claims. Poly B increases liability for water damage, and insurers are taking notice—some refusing coverage altogether. Understanding these risks prepares homeowners for tough discussions with their insurance broker.
Why insurers are hesitant with Poly B homes
Poly B plumbing is associated with costly water damage claims, especially when pipes fail unexpectedly. For insurance companies operating in Calgary and surrounding areas, this represents too great a risk. As a result, many underwriters now flag Poly B in home inspections, and some will only underwrite policies if a full plumbing replacement is completed using PEX piping or copper systems. Homeowners may be asked to sign waivers acknowledging the risk or face total policy rejection. Detecting Poly B in Calgary houses has become a priority for many home inspectors, as the presence of this type of plumbing can significantly impact a property’s insurability. Homeowners are encouraged to proactively replace Poly B systems before selling their homes to avoid potential complications during the inspection process. Furthermore, increased awareness of the risks associated with Poly B has led to a growing demand for PEX and copper systems among both buyers and sellers in the real estate market.
“Some insurers may refuse renewal if Poly B is detected without disclosure.”
Policy exclusions or higher premiums for Poly B
When Poly B plumbing is present, policies may include water damage exclusions specific to pipe ruptures or even raise deductibles as high as $10,000 for plumbing-related claims. Homeowners have also reported rate increases of up to 25% due to the added risk. Worse, insurance claims tied to flooding often get denied when the material is found to be Poly B—especially if the policyholder failed to disclose it during underwriting.
Local Calgary insurer case examples
Several clients in Calgary who contacted Urban Piping after receiving notices from their insurers were surprised to learn that undisclosed Poly B was grounds for non-renewal. In one instance, a homeowner had a dishwasher leak from a Poly B connection. The insurance adjuster deemed it wear-related and denied the $12,000 claim. Upon reviewing the homeowner’s documents, it was found that Poly B plumbing was not mentioned—triggering a material non-disclosure denial. These situations have become increasingly common, especially with recent reports highlighting Christie Park Poly B issues. Homeowners are now more aware of how crucial it is to inform their insurers about their plumbing systems, as failure to do so can lead to severe financial repercussions. It’s imperative for property owners to proactively address any potential risks associated with Poly B installations to avoid costly surprises down the line.
Need peace of mind? Replacing Poly B piping can make your home more insurable and significantly reduce your monthly premium risk.
Legal Codes and Insurance Claims: What Calgary Homeowners Must Know

Urban Piping highlights the risks of poly b plumbing and insurance claim rejections for Calgary homeowners. Homeowners may face significant financial burdens due to leaks and failures associated with this type of plumbing. A Poly B Plumbing case study in Crossfield illustrates the challenges faced by residents when seeking compensation for damages, revealing how insurers often deny claims based on the age and condition of the piping. It’s essential for homeowners to stay informed about the potential ramifications and consider proactive measures to safeguard their properties.
If you’re selling or insuring a home in Calgary with Poly B plumbing, it’s critical to understand the legal and insurance landscape before disaster strikes. While no law outright bans Poly B, omission during real estate sales or insurance applications may carry serious financial consequences. Regulatory expectations, buyer preferences, and insurance underwriting practices have changed—dramatically increasing liability for unaware homeowners. Homeowners should proactively assess their plumbing systems and consider the implications of Poly B when navigating their real estate transactions. Understanding the Poly B replacement process for Calgarians can mitigate future risks and align with evolving buyer expectations. Engaging with knowledgeable professionals can help ensure compliance and safeguard against potential liabilities.
Are there legal codes in Calgary requiring Poly B replacement?
As of now, there is no official City of Calgary bylaw mandating the replacement of Poly B piping. However, current building codes prohibit the installation of Poly B in new builds or permitted renovations. This reflects an industry-wide consensus that Poly B is an obsolete and unreliable material. Many homeowners choose to upgrade voluntarily due to insurance pressure or when preparing a home for sale in competitive Calgary neighborhoods.
“While not yet mandatory, many Calgary buyers expect sellers to replace Poly B before closing.”
Real-life claim denial examples in Alberta
In a documented claim reviewed by Urban Piping, a burst Poly B pipe in a Calgary laundry room resulted in over $50,000 in damage. The insurer denied the claim after finding a clause in the policy excluding coverage for damage caused by known defective materials—including Poly B. The lack of proactive replacement and documented inspection history gave the insurer sufficient grounds to reject the claim.
“Insurance claim case: Undisclosed Poly B pipe burst led to $50,000 in damages, denied due to material exclusion.”
What happens if you don’t disclose Poly B?
Failing to disclose the presence of Poly B can be considered material misrepresentation or non-disclosure during an insurance application or real estate transaction. For property sellers, this may open the door to post-sale legal disputes or forced rebates to new buyers. For those making claims, undisclosed Poly B often results in insurance denial—leaving homeowners to cover both damages and legal costs out-of-pocket.
“Calgary homeowners should view Poly B as a liability, not an asset.” – Graham Drew, Urban Piping
Don’t let grey pipes cost you green cash—consult a Poly B expert and disclose wisely to avoid legal or insurance setbacks.
Replacing Poly B Plumbing: Cost, Coverage & Local Rebate Insights

Urban Piping’s expert guides Calgary homeowners on poly b insurance solutions for safe and efficient plumbing.
If you’re a Calgary homeowner with Poly B plumbing, replacing it can feel daunting—but it’s one of the most impactful steps you can take to protect your property and reduce long-term costs. Not only does an upgrade to modern materials like PEX improve reliability, but it may also unlock better home insurance premiums and rebate programs within Calgary, Edmonton, and surrounding areas.
Average cost to replace Poly B in Calgary homes
Urban Piping reports that most full-home Poly B replacements in Calgary range between $8,000 and $15,000, depending on square footage, pipe accessibility, and number of bathrooms. This includes not just pipe replacement, but drywall removal, repair, and repainting—making the process seamless from start to finish.
Quote: “Most homeowners break even in under 3 years thanks to claim avoidance and better insurance rates.”
Does insurance offer premium discounts after replacement?
Yes—many Calgary insurance brokers reassess risk after Poly B removal. By switching to PEX or another modern material, some homeowners have reported reduced monthly premiums or access to insurers who previously declined coverage. Every policy is different, but the risk profile changes significantly once the plumbing system is updated.
Pro Tip: Replacing with PEX may reduce premiums or open access to better policies.
Available rebates or financing options for replacement
While Poly B replacement isn’t covered under most provincial rebate programs, Urban Piping assists clients in finding financing options through third-party lenders. Flexible monthly payment plans allow homeowners to protect their property without incurring up-front financial strain.
Urban Piping offers full-service Poly B replacement, including drywall and repainting.
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Should You Replace Poly B Before Selling Your Calgary Home?

Urban Piping ensures Calgary homes are Poly B free and eligible for insurance with expert plumbing solutions.
Selling a home in Calgary, Edmonton, or Vancouver with outdated Poly B plumbing? That may be a dealbreaker. Today’s buyers are informed—and many request documentation proving that Poly B has been fully replaced. Resolving it before the listing goes live can prevent negotiation issues, inspection delays, and insurance-related objections. Investing in Poly B plumbing services in Calgary can enhance your home’s appeal and ensure a smoother transaction process. Not only will it reassure prospective buyers about the plumbing system’s reliability, but it may also increase your property’s market value. Taking proactive steps to update your plumbing can ultimately lead to a more profitable sale. If you’re considering an update, be sure to research Poly B replacement tips for condos, as the process can vary depending on the building’s layout and plumbing design. Consulting with a professional can help you understand the best approach tailored to your specific situation. By being informed and proactive, you can navigate the challenges of selling a property with Poly B plumbing more effectively. Additionally, incorporating Poly B plumbing considerations for Calgary home sellers into your selling strategy can make a significant difference in attracting buyers. Being transparent about the updates and improvements made to the plumbing system can foster trust and confidence among potential purchasers. Ultimately, making informed decisions regarding Poly B plumbing will position your home favorably in the competitive real estate market.
Does Poly B lower property value in Calgary?
Absolutely. Homes with Poly B are typically valued lower and stay on the market longer. Buyers factor in projected replacement costs and potential insurance complications. Realtors confirm that untreated Poly B can result in $5,000–$10,000+ deductions during negotiations or conditional sales falling through.
Real estate disclosure rules and buyer expectations
In Alberta, sellers are obligated to disclose known material defects—including Poly B plumbing. Failing to disclose may open the door for legal challenges or post-sale repair demands. Calgary REALTORS® increasingly recommend full transparency, and many listings now highlight “Poly B Free” as a selling feature.
Quote: “98% of homes we repiped were planning to sell in the next 12 months.” – Urban Piping Sales Data
How pre-sale replacement can boost resale potential
Replacing Poly B before sale can command a higher asking price, shorten listing time, and reduce deal friction. Buyers feel more confident knowing their prospective home has updated plumbing—and insurance companies are more likely to offer standard coverage without Poly B-related exclusions or inspections.
Calgary REALTORS® often recommend replacing Poly B to increase closure rates on listings.
Get A Quote, Free Estimates, Call Now
Talk to a Calgary Insurance Broker or Poly B Plumbing Expert

Expert from Urban Piping explains poly b insurance options to Calgary homeowners.
Ready to make a confident decision about Poly B plumbing and home insurance in Calgary? Whether you’re unsure about costs, risks, or how to start a replacement, talking to the right pros can save you stress and money. Urban Piping and trusted local insurance brokers offer tailored guidance to help you protect your investment now and in the future.
How brokers evaluate risk after plumbing upgrades
Insurance brokers assess homes with upgraded plumbing systems as significantly lower risk. Once Poly B is replaced, you’ll likely gain access to broader policy options, standard deductibles, and less restrictive water damage coverage. Always inform your broker after any plumbing upgrade to update your file accordingly.
Insurance brokers can help you access better rates once Poly B is replaced.
Get a free in-home Poly B inspection to get started
Urban Piping offers free in-home inspections across Calgary, Edmonton, and Vancouver. During the visit, technicians identify any Poly B piping, determine exposure risk, and present a clear, honest estimate for replacement—including all finishing services needed for a seamless repair.
Partner with experts who handle plumbing and drywall repair
Unlike general contractors or basic plumbers, Urban Piping handles everything from diagnosis to full restoration: plumbing replacement, drywall patching, painting, and even coordination with real estate professionals or insurance brokers to document repairs.
Urban Piping offers bundled repairs—including plumbing, drywall and paint.
Don’t wait for a burst pipe — take proactive steps today.
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