Whole home plumbing change

Old 06-29-16, 12:57 PM
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Whole home plumbing change

We have an old home from 1930s capecod. Most of the plumbing in the home is too old including the radiator plumbing for heating. We were thinking to change the plumbing for whole home to new standards. I am aware of cutting walls to take out old and putting new ones. But was wondering about following things considering 2 bathrooms, kitchen, sewer line (don't know if we need to change the main sewer line coming from road or just in house)
1. What will be overall cost (We live in northern NJ)
Taking out old galvanized and using plex for water line and pvc pipes for drainage
2. Is it advisable to change all plumbing ?
3. Radiator - Can plex pipe work for radiators or we need to change that too?

Thanks for your help.
Old 06-29-16, 01:25 PM
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You posted this twice. Maybe the mods can combine the two so you will get better answers.
Old 07-06-16, 07:17 PM
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It looks like another mod took care of the duplicate posting.

It sounds like you have a basic handle on the project. PEX is a good material to use for the water supply and PVC for drainage. You'll want to replace all the valves throughout the system and the angle stops at each fixture. This is all in a day's work (or a few days) for a plumber.

I can't comment about the cost; a lot has to do with how accessible all the piping is, how much there is, etc. The best way to find out is to get 2 or 3 quotes from reputable plumbing companies and see what they have to say.

As for radiator plumbing, you can use a similar product oxygen barrier pex. You'd want to find a heating company to do that. It's not as easy as just replacing the piping (in many cases) as you need to deal with sizing, lengths, and some of it is as much of an art as it is a science. There are some plumbing/heating companies that will do both - but I would still talk to a standard plumber to quote your potable water system to be sure you're getting a reasonable deal.

Good luck - we're here to help if you have questions along the way!


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