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PEX, CPVC or Copper Pipe: Which is Best?

PEX, CPVC or Copper Pipe: Which is Best?

In ancient times, plumbing pipes were made of toxic lead (hence the name “plumber,’ which comes from the Latin word for lead.)

In modern times, there are a number of different — and much safer — materials which can be used to replace your broken or leaky pipes.

Our professional plumbers in Lexington and Louisville stay up-to-date on the latest new materials. This is why we recommend PEX (cross-linked polyethylene) tubing in many cases, over copper and CPVC. There are several advantages to PEX for your residential plumbing.

At one-third the cost of copper for the tubing itself, PEX offers homeowners savings in material costs. It’s also faster to install, which can save labor cost. For a remodeling job, where our plumbing technicians are replacing existing pipes, PEX can be “snaked” along the existing pipe behind the walls. This means we have to make, and repair, fewer holes in your walls.

PEX doesn’t corrode like copper, even in acidic water conditions. It doesn’t require glue like CPVC, so installation doesn’t require special ventilation. Because it’s flexible, it’s less likely than CPVC to burst due to freezing weather. It also requires fewer 90-degree fittings than copper or CPVC, because the tubing itself will bend around corners.

It has a higher R-value (the measure of a material’s insulating ability) than either copper or CPVC, which means water will lose less heat as it runs from your water heater to your plumbing fixtures. PEX tubing dampens water noise in your pipes, creating a quieter home environment. As you can see, there are a lot of advantages to using PEX in your home’s plumbing system. With a 25 year warranty, it’s a very durable, safe and smart choice.

If you need a Louisville or Lexington plumbing company for your planned remodeling project, or to replace broken or leaking pipes in your home, call Dauenhauer at any hour. We’ll be happy to provide a fast, accurate quote or a free second opinion.

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Bob Lofton was prompt friendly knowledgeable and honest.

He gave me a very fair estimate compared to your competition. I have already called back for Bob's help with another issue and will use him whenever the need arises. I have already shared his name and Dauenhauer plumbing with family and friends.


Your plumber in this particular job did a fantastic job.

He did a job for us a few months ago and did fantastic then as well. We use your service solely because of him.

Samuel & Trina Johnson

Matt was great.

He was so caring and informative. He was neat and cleaned up after installing the new toilet.


I liked my plumber Tim.

I felt like he explained my repair options and gave me an honest reasonable price. I would recommend Dauenhauer plumbing to my friends and family.

Crystal Fisher

Dependability. Quality. Professionalism.

Cotton the plumber who came out was a true professional. Long time in the business. I appreciate his attention to detail and value plus service.