Choosing new pipes for your home may not sound exciting, but the decision can have a long-term impact on your plumbing performance, durability, and maintenance costs. 

So how do you choose between PEX, copper, and CPVC pipes? 

Let’s break it down in simple terms so you can make the best decision for your home.

What Is PEX And Why Do Homeowners Like It?

PEX (short for cross-linked polyethylene) is a flexible plastic tubing that’s become very popular in modern plumbing. Why? 

Because it’s affordable, easy to install, and resists freezing better than many other pipe types.

Its flexibility allows it to bend around corners, which can reduce the need for additional fittings and speed up the installation process. PEX is a great option for new construction and whole-home repiping.

However, PEX isn’t perfect. It can be damaged by UV light, so it’s not ideal for outdoor use or areas exposed to sunlight. It’s also vulnerable to some chemicals and pests.

Is Copper Still A Good Option?

Absolutely. Copper pipes have been trusted for decades because they’re tough, corrosion-resistant, and can last over 50 years with proper care. Copper is also a natural material that doesn’t carry the same concerns as plastic-based pipes.

That said, it comes with a higher price tag. Copper is more expensive to buy and install, and it can be prone to corrosion if your home’s water has a high mineral content. Still, if durability is your top priority, copper might be the winner.

What About CPVC?

CPVC (chlorinated polyvinyl chloride) is a plastic pipe that works well for hot and cold water applications. It’s more temperature-resistant than standard PVC and also resists corrosion.

It’s a solid choice for hot water lines, but it’s not as flexible as PEX. Over time, CPVC can become brittle, especially in very cold temperatures. It’s also more sensitive to impact, so it needs to be handled carefully during installation.

How Do You Know Which Is Right For You?

Ask yourself a few key questions. 

  • Do you want to save on installation costs? Go with PEX. 
  • Are you focused on longevity? Copper might be your best bet. 
  • Need reliable hot water lines at a lower price point? CPVC could work well.

Still unsure? 

At Seatown Electric Plumbing Heating and Air, we help Seattle homeowners pick the right materials for their plumbing needs. Contact our experts to get reliable guidance and quality installation you can count on.