Is it worth replacing polybutylene pipes?

Author: Lessie Rath  |  Last update: Saturday, September 20, 2025

Contrary to their popularity, the damages caused due to their failure have been unprecedented in history. Due to the high possibility of failure of these pipes, homeowners who have yet to replace them are advised to do so as a matter of urgency. Polybutylene pipes are liable to fail at any moment without prior signs.

Do you really need to replace polybutylene pipes?

Plus, any damage that is done by polybutylene piping is no longer covered by most insurance companies, so it's important to have it replaced before any problems occur.

What is the life expectancy of polybutylene pipes?

The lifespan of polybutylene piping is 15 years. It deteriorates/flakes from the inside so unless a section is cut and examined, the homeowner will not know the extent of the damage. Chemicals in the water are believed to contribute to the deterioration (including over-chlorination).

What is the average cost to replace polybutylene pipes?

The cost to replace polybutylene pipes runs between $300 and $5,100, with the average homeowner spending $1,200 on polybutylene pipe replacement. Polybutylene pipes are no longer used in new construction because they are prone to defects, leaks, and pipe bursts.

Should I buy a house with polybutylene plumbing?

Overall, polybutylene pipes should not completely deter you from purchasing a home you love. You should, however, take some additional steps if you do decide to make a deal on a house with these types of pipes. Hiring a professional plumber is key to ensuring the pipes are still in good shape.

Understanding Poly B Pipe Replacement Costs

Will homeowners insurance cover polybutylene pipe?

In general, insurance companies do not provide coverage within homeowners insurance policies for polybutylene pipes. They are simply too much of a liability as they are easily damaged and will break down, burst, and damage the home.

Can polybutylene pipes last 30 years?

Polybutylene pipes are at the end of their useful life. According to studies by Fannie Mae and HUD, domestic water supply systems in multifamily buildings reach the end of their useful life after 30 – 50 years.

Can you sell a house with polybutylene pipes?

Selling a house with polybutylene pipes can be challenging due to the known issues and potential risks associated with these outdated plumbing systems. Polybutylene pipes, used in residential construction from the 1970s to the mid-1990s, have a history of failure, causing leaks and significant water damage.

Do polybutylene pipes need to be disclosed?

If you are a seller, you should disclose all known conditions that the buyers need to know about the property including the likelihood of leaky pipes. If you decide to replace Polybutylene pipes in your home, that is good. But remember that many homebuyers are willing to take over risks that are fully disclosed.

Can I replace poly b myself?

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.

What do you do if your house has polybutylene pipes?

It is recommended that if a home has polybutylene pipes, the entire plumbing system should be replaced immediately, as a costly leak can happen at any time, without warning, and cause large-scale damage.

What is the best replacement for polybutylene pipes?

If you have polybutylene pipes, it's best to replace them with PEX pipe, but if a repipe is not an option, use SharkBite Max polybutylene adapters to repair your pipes.

Are all grey pipes polybutylene?

Beware of gray pipes: Polybutylene is a gray tube that carries potable water through many homes. PB is pretty much the only gray water pipe ever installed in homes. PB tubing found in homes will have a dimeter of 1/2 inch, 3/4 inch, or 1 inch.

Can you get a mortgage on a house with polybutylene pipes?

In addition, the risk of damage coupled with insurance difficulties can sometimes make it more difficult to obtain a mortgage loan on houses with polybutylene piping. That often means that investors –– specifically those with cash or alternative financing –– are the primary buyers of these homes.

How do I get free replacement of polybutylene pipes?

Securing financial assistance for Poly B replacement often involves meeting specific criteria, such as income caps or property assessments. Homeowners will need to gear up with the necessary paperwork, which could include proof of income, property details, and quotes for the plumbing work required.

What causes polybutylene pipe to fail?

Polybutylene (Poly B) pipes are considered problematic due to their susceptibility to deterioration and failure over time, especially when exposed to high temperatures, chlorine, and improper installation. These factors can lead to cracking, leaks, and potential water damage in homes.

Will insurance companies cover polybutylene pipe?

Polybutylene pipes are known for causing severe water damage, and as insurance companies recognize this risk, they often deny or limit coverage for homes with these pipes.

How much does it cost to replace polybutylene pipes?

Generally, our repipes range from $4,500 for a two-bedroom, one-bath house to up to $15,000 for a larger property with more bathrooms and longer pipe runs. We would replace all your polybutylene plumbing with either new copper or PEX tubing.

When should polybutylene pipes be replaced?

Although Polybutylene pipes can last between 10 and 15 years, its corrosion and degradation can be accelerated by water chlorination. Besides, the damage of Polybutylene pipes happens from inside out; so, there is no way to know the extent of damage the pipes have already suffered.

What year did they stop using polybutylene pipes?

Polybutylene pipes were banned from new construction projects after 1995, but if they're already in your home, there is no requirement to remove them. This is important to know if you decide to purchase a home that was built between 1978 and 1995.

Can polybutylene pipes freeze?

It is clear from this rather severe testing that polybutylene pipe, when properly installed, can easily withstand moderate, infrequent freezing.

Which is better polybutylene or PEX plumbing?

Thanks to modern polymer technology, crosslinked polyethylene (PEX) piping systems perform in ways that provide superior reliability and safety when compared to polybutylene (PB) piping systems used in plumbing and heating applications in Canada and USA until the mid-1990s.

How much does it cost to replace poly-B pipes?

The average price of poly-b replacement is usually between $5,000 and $15,000. Although this is a considerable investment it can save you spending even more when dealing with damages from a burst pipe. It also gives you the peace of mind in knowing an inevitable leaking or burst pipe is no longer on the horizon.

Can you use SharkBite on polybutylene pipe?

SharkBite's push-to-connect transition fittings are more efficient and more reliable than traditional pipe transition methods, such as threaded adapters. They also come in a range of different end connections, including PVC and polybutylene.

What is an alternative to polybutylene?

Budget-friendly solutions for replacing Polybutylene pipes are essential for homeowners looking to manage costs effectively. Evaluating alternative materials, like PEX, CPVC, and copper, allows for informed decisions that balance affordability with long-term durability.

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