Or the toilet, if you can avoid it. "That often becomes the biggest part of the plumbing-price increase," says Richard Trethewey, This Old House plumbing and heating expert. If your new layout requires that you move the toilet, use the opportunity to upgrade the pipes at the same time. "That will save you money in the long run," says Richard.
Cost to move toilet more than 3 feet: $500-$1,000
Cost to leave in existing location: $0
SAVED: Up to $1,000