PEX pipes are known for their durability and longevity. When installed underground, PEX pipes can last up to 50 years or more, depending on the quality of the installation and the soil conditions. However, it’s important to note that PEX pipes can be affected by UV rays, so they should be buried or covered to protect them from sunlight. If you’re unsure about the condition of your underground PEX pipes, it’s best to have them inspected by a professional plumber. At 5 Star Best Plumbing, our specialists are trained to handle all types of plumbing services, including PEX pipe installation, repair, and replacement. Contact us today for all your plumbing needs!