Home>Discussions>PLUMBING>Should we run new pipes above ceiling or through walls?
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Angie
Should we run new pipes above ceiling or through walls?

Hi, we live in a condo in SoCal and discovered that the old galvanized pipes need replacing (I wish we knew that before we moved in!). We're on a tight budget so could use some advice: One contractor said to run the new copper pipes above the drywall ceiling, but another contractor said that it's better to run them behind the walls. Which is better?

Our condo unit is ground floor and has no basement or attic crawl space. We want the job done right, but also trying to minimize tearing open the walls/ceiling to save money.

Any knowledgable advice from the TOH community is much appreciated!

HandyAndyInMtAiry
Re: Should we run new pipes above ceiling or through walls?

Angie,
Actually since the building sits on a slab of concrete, both will need to be done. You cannot get to anything without having to traverse across ceilings and then down the walls. Just ensure they do not cut more structure than is necessary to slide the pipe thru. Plumbers are notorious for cutting out anything that is in the way.

Sheetrock is the least expensive part of this entire project. A full sheet of sheetrock is only about $12 per sheet. The plumbers time is the most expensive. They will try to sell you more expensive copper, when they install less expensive copper. Make sure they use Type L copper. Type M is what is found in the big box stores, that is cheap crap. Every part is stamped with the type. Type K is only for underground such as the supply coming from the meter. While they have the sheetrock open, make sure they check and test everything before closing anything up. If they need to replace the drain lines, I would suggest using iron pipe and not pvc. Iron pipe will make the noise of water flow almost nill. Where pvc, you can hear everything flowing when water is turned on, or a device is flushed. I also suggest using 3/4" copper for all supply lines, since you are on a shared supply line coming in. I like placing valves in all locations so that if need be, the entire house does not have to be turned off, just to work on one device.

Andrew

Handy Andy In Mt Airy NC

Angie
Re: Should we run new pipes above ceiling or through walls?

Thank you Handy Andy! Much appreciated.

HandyAndyInMtAiry
Re: Should we run new pipes above ceiling or through walls?

Angie,

You're welcome. We used to live in Oceanside Ca. So I am familiar with houses on slabs of concrete. And other issues that come with that.

Andrew

Handy Andy In Mt Airy NC

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