What is the best material for building plumbing, copper or Pex?


What is the best material for building plumbing?

Babak K Published: July 17, 2020, 1:55 a.m.Last updated: Sept. 25, 2020, 9:14 a.m.

I'm upgrading all plumbing lines. Which material do you say is the best to use for residential plumbing? Copper, PEX, others?

Responses (3)

Babak K
Babak K July 17, 2020, 10:52 a.m. Reply

Thanks! If the time to install was not an inssue, would you still prefer PEX over copper? How about water noise, which one is quieter? Water quality/freshness. Durability etc.

Robert J. Pierson Aug. 13, 2020, 2:41 p.m. Reply

Hi there Babak,

I think the choice between a plastic material and copper is a very personal one, they both have advantages and disadvantages - such as the solder used, the amount of copper released into the water depending on the ph, likewise for leaching of potential toxins from the PEX - etc etc.

On the sound aspect, I would say that carefully installed PEX should be quieter as there will be fewer sharp bends, but then in hot water circuits I have heard installations that "crackle" with PEX and "bang" with copper - so again - careful installation is probably key!

Durability, probably won by copper - as long as it's all above grade or well protected...

Personally, I've used both, but would probably install PEX next time for ease of install, speed and cost.

Hope that helps!