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Question DetailsAsked on 7/22/2015

expected or average cost for replacing main shut-off valve

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If shallow buried outside can run into the $500 ballpark, commonly $1000 ballpark if deep buried (6-10 feet) in deep frost area. If exposed in gate box or indoors and decent accessibility, the valve itself can run $20 or 250 depending on whether your locale requires a built-in two-stage backflow preventer or not (most do not - usually an east coast city thing), plus minimum service charge of typically $75-150 labor but up to twice that in a few very high cost urban areas.

Answered 4 years ago by LCD

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