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Question DetailsAsked on 4/9/2014

What is the cost to switch galvanized plumbing to copper

Home built in 1951. Some plumbing already switched to copper with updated sinks. But most areas still galvanized. Water pressure is low.

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Depends a great deal on whether readily accessible from open basement or crawl space joists - which does not affect plumber cost much, but sure makes a diff in the amount of remedial drywall and painting repair needed. Also, much more expensive in concrete or brick buildings where the pipes were built-in.


You can find several prior similar questions with cost estimates in the Home > Plumbing link right below your question. Can run from around $1000 for very simple small (say under 1000SF) ranch with single run length of house and full open access under floor, to $5000 or more in old brick or concrete brownstone, say.


When you say pressure is low, presumably you mean when flowing it does not put out much water. If pressure is low when you first turn it on, this is caused by a blocked pressure regulator or problems at a pump or such - blocked pipes just restrict flow so you get low pressure and restricted flow at the outlet, but do not affect initial pressure when you first open the tap.


Certainly, if pipes are that old, they are due to start failing soon unless your water has very low corrosivity so a changeout is likely in order if they are plugging up. Easy to tell if plugging up is the issue by having a few joints opened up and looking the pipe - both hot and cold, because some types of corrosion or deposition favor warmer or colder water. OF course, if the pipes taken out when you redid the sinks were all plugged up or eaten away, then you already know it is time.

Answered 5 years ago by LCD




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