PEX Pipe

PEX Pipe Failures: Common Problems and How to Avoid Them

PEX (cross-linked polyethylene) pipe systems have become increasingly popular in the plumbing industry over the years due to their flexibility, durability, and affordability. While PEX pipes have many advantages, they are not immune to failures. PEX pipe failures can occur due to a variety of reasons, including improper installation, poor quality materials, and natural wear and tear. These failures can cause significant damage to a home or building and lead to costly repairs. Let’s discuss the common problems associated with PEX pipe failures and provide tips on how to avoid them, ensuring that your plumbing system remains reliable and efficient.

Problem #1: Pinhole Leaks

One of the most common PEX pipe failures is pinhole leaks. These tiny holes can occur anywhere along the length of the pipe and can lead to water damage, mold growth, and other serious problems. Pinhole leaks are typically caused by chemical reactions between the water and the pipe, as well as by improper installation techniques.

To avoid pinhole leaks, choosing high-quality PEX pipe resistant to chemical reactions is important. Additionally, proper installation techniques must be followed, including using the correct fittings and ensuring that the system is properly pressurized.

Problem #2: Crimp Fitting Failures

Crimp fittings are commonly used to connect PEX pipes to other plumbing components. While these fittings are generally reliable, they can fail if they are installed improperly or if they are made from low-quality materials. Crimp fitting failures can result in leaks, water damage, and other serious problems.

To avoid crimp fitting failures, it’s essential to use high-quality fittings designed for PEX pipes. Additionally, proper installation techniques must be followed, including using the correct tools and ensuring that the fittings are properly secured.

Problem #3: Pipe Bursting

PEX pipes are designed to be flexible, which makes them less prone to burst than rigid pipes. However, if the pipes are exposed to extreme temperatures or pressure, they can still burst. Pipe bursting can result in significant water damage and can be expensive to repair.

Avoiding pipe bursting requires proper installation techniques, including ensuring that the pipes are supported and not exposed to extreme temperatures or pressure. It is also important to use high-quality PEX pipes that are designed to withstand the specific conditions they will be exposed to. Regular inspections and maintenance can also help prevent pipe bursting by identifying potential issues before they become major problems.

Problem #4: UV Damage

PEX pipes are vulnerable to damage from ultraviolet (UV) radiation. If the pipes are exposed to sunlight or other sources of UV radiation, they can become brittle and crack. UV damage can result in leaks, water damage, and other serious problems.

UV damage is entirely preventable by ensuring that PEX pipes are not exposed to direct sunlight or other sources of UV radiation. This can be achieved by covering the pipes with insulation or installing them in areas that are not exposed to sunlight. 

Problem #5: Chemical Damage

PEX pipes can be damaged by chemicals commonly found in household water supplies. Chemical damage can result in leaks, water damage, and other serious problems.

To avoid chemical damage, it’s essential to choose PEX pipes that are resistant to the chemicals commonly found in your water supply. Additionally, it is important to ensure that the pipes are installed properly and are not exposed to chemicals that could damage them.


PEX pipe systems are a popular choice for many homeowners and contractors, thanks to their ease of installation, durability, and cost-effectiveness. However, like any plumbing material, PEX is not without its problems. By understanding the common PEX pipe failures and how to prevent them, you can ensure that your PEX plumbing system is reliable and long-lasting. Remember to choose high-quality materials, follow proper installation techniques, and take steps to protect your pipes from damage.

Are you experiencing problems with your PEX plumbing system or any other construction-related legal issues? Don’t let your construction law case in Birmingham go unresolved. The experienced team at Edge Lawyers can help you navigate complex legal issues and protect your interests. Contact us today to schedule a consultation and learn how we can assist you in achieving a favorable outcome in your case.

Leave a Comment

Your email address will not be published. Required fields are marked *

Scroll to Top