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Question DetailsAsked on 5/1/2014

How complicated and expensive is it to add a sink to my laundry room?

Plumbing for the washing machine already exists in the laundry room. What do I need in order to add a sink?

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1 Answer


Generally, assuming you do not have high water table issues that would require unusual backflow prevention and such on the drain, usually just a matter of cutting into the wall to get to the sewer line where the washing machine joins it and cutting in a new wye, tapping off the existing water lines that feed the washer, then a bit of drywall repair and painting - can run from $300 range probably with cheap fiberglass free-standing washtub with flexible hoses teed-off visibly from existing faucets at washer and flexible hose tap to sewer, to $500-600 range for normal porcelain sink with vanity or cabinet under it and fully concealed rigid piping like in a bathroom. The quick and dirty method listed first is not allowed in all code jurisdictions.

If have to intercept the sewer pipe under the slab, then likely to run more in the $600-1000 range.

Answered 6 years ago by LCD

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