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Question DetailsAsked on 5/21/2016

general costs for a 1965 style home that has original water lines and sewer lines that re needing to be replaced?

1965 1800 sq ft home with roughly 50 ft distance from the home to water turnoff at street. The sewer lines are the same from the street and run approximately through cement in the floors throughout the home.

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Costs will vary a lot depending on what materials you are replacing them with - for instance copper (which I personally prefer) can run as much as 25-100% more than PEX (which I have no confidence in), and cast iron can likewise run 25-50% more than ABS or PVC plastic DWV pipe. Also, of course, how much is under concrete slab and cannot be easily rerouted above slab makes a big difference too.

Here is a prior similar question with response which should give you a ROUGH ballpark - definitely get at least 3 responsive (in same general range) bids for this, and more likely 5-7 total bids to get to that, because I have seen bids for this type of job run $3-5,000 on one end to as much as $25,000 for the exact same job - so get enough bids you can see where the "reasonable" range is.

One thing you said - about running "through cement in the floors throughout the home" - if you mean actually in concrete floors, as opposed to under slab-on-grade concrete floors, that is a whole nother picture. If the pipes are encapsulated in elevated concrete floors, you need an architect/engineer firm or structural engineer to advise on your issue - and may well end up with reaming and injection sleeve relining the sewer lines within those floors rather than taking them out, and possibly reaming out and slipping in smaller OD tubing for the water lines, because digging into above-grade concrete slabs to replace piping is pretty much prohibitively expensive by the time you factor in supporting the slab while cutting out the old pipes and putting in new reinforcing and concrete for the repairs. And this commonly requires at least some temporary removal of siding as well to run the new piping in reasonable lengths and to be able to ream it out and sleeve in new piping.

If you meant encapsulated in existing slab-on-grade or basement slabs (supported onthe ground), then not that big a thing - adds rough ballpark $1000 or more to the job commonly for the concrete cutting and repair, but putting new pipe below an existing slab on grade (assuming not post-tensioned or pre-tensioned as part of an overall foundation system like with cantilevered houses or such) is technically not difficult - just a hassle to cut through the concrete and repair it afterwards.

Answered 4 years ago by LCD

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