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Poly B Replacement Updated Cost

Poly-B Plumbing Replacement Cost: Updated 2022 Price Guide

If you’re in the process of renovating your home or simply updating your plumbing, you may be wondering about the cost of replacing your Poly B piping. Poly B is a type of plastic piping commonly used in homes built between 1978 and 1995.

However, this piping material is now known to degrade and fail over time, leading to costly repairs. In this complete cost guide, we’ll break down everything you need to know about Poly B plumbing replacement cost for your home.

Should You Replace Poly B Pipes?

poly b pipes

A straightforward answer, yes! If your home was built before 2010, there’s a good chance that you have Poly B piping. This type of piping has a high failure rate of over 95%, that’s why it is no longer allowed in new house construction. If you want to avoid costly repairs down the road, you may want to consider replacing your Poly-B piping.

Poly-B is usually a grey plastic pipe commonly used for residential plumbing in the 1970s and early 1990s. However, this type of piping is now known to be problematic, and many homeowners are opting to replace their Poly-B pipes.

If you want to learn more about Poly-B plumbing, check out our in-depth guide here>> What is Poly B Plumbing and the Risks Associated With It

Poly B Plumbing Removal and Replacement Cost

Cross-linked polyethylene or PEX and copper are the most common types of piping used in new home construction. If you’re currently dealing with Poly B piping, you may be wondering how much it will cost to replace your pipes.

PEX Pipes Replacement Cost

poly b plumbing Replacement Cost for pex pipes

In replacing Poly B piping, most homeowners spend between $1,500 to $8,000+ for plastic pipes replacement such as Cross-linked polyethylene or PEX pipes. This type of pipe is flexible, durable, and easy to install, making it a popular choice for many homeowners.

Copper Pipes Replacement Cost

Poly b Replacement Cost for copper pipes

The average cost of replacing Poly B with copper pipes is $2,500 to $15,000+ for a typical residential house with 2 to 3 bathrooms.  Copper pipes are more expensive than PEX pipes, but they’re also a more durable and have a longer lifespan.

Factors That Affect the Cost of Replacing Poly B Pipes

On average, homeowners can expect to pay between $1,500 and $15,000 or more to replace their entire Poly B plumbing system. However, a few factors can affect the cost of replacing your Poly B piping. These include:

Type of Piping Material You Choose

One of the main factors that will affect the cost of replacing your Poly B pipes is the type of piping material you choose. There are various options on the market today, including copper and PEX. Copper is typically the most expensive option, while PEX is usually the least costly.

Size of Your Home

If you have a large home with multiple bathrooms and a lot of plumbing, you can expect to pay more to replace your Poly B piping than someone with a smaller home.

Number of Pipes That Need to Be Replaced

If you only have a few pipes that need to be replaced, you can expect to pay less than if you have many pipes required for the replacement.

The Plumbing Contractor You Choose

The cost of replacing your Poly B pipes will also be affected by the plumbing contractor you choose. Make sure to choose a  reputable contractor with experience replacing Poly B piping to avoid any problems that may add to the cost of your project.

If you live in the Lower Mainland Canada, we at Your Guy Plumbing have decades of experience and are experts in Poly B piping removal and replacement. If you want a free estimate, please call us at 604-200-0162, and we’ll be happy to help you. We also offer 24-hour service so we can help you even if it’s an emergency.


Poly B pipes are highly defective, and many homeowners opt to replace them to avoid costly repairs down the road. The average cost to replace Poly B piping is between $1,500 and $15,000 or more, depending on the size of your home and the type of piping material you choose. To prevent extra costs, choose a competent plumbing contractor with expertise in replacing Poly B pipes.

Frequently Asked Questions

How do you replace poly B?

Poly B can be replaced by a professional plumber or a do-it-yourselfer with the proper tools and knowledge. The first step is to shut off the main water supply to the home. Next, the old poly B pipes will need to be cut away and removed.

New copper or PEX piping will need to be run in its place and connected to the main water supply. Finally, the new piping will need to be tested for leaks before turning the main water supply back on.

How long does it take to replace Poly-B?

It takes about 2-5 days to replace Poly B piping. This time can vary depending on the size of the home and the complexity of the job. If you are doing the job yourself, it will likely take longer.

John Relampago

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