what does it cost to update a bathroom
1 The above figures place the bathroom update at $250 per square foot. 2  This pricing structure assumes that carpenters charge an average of $70 per hour, electricians between $65 to $85 per hour, painters between $20 and $35 per hour and plumbers between $45 and $65 per hour. Provide plumbing to code-The average plumber is going to base their pricing on each individual element of the project. 2  For example, the bathroom is going to require plumbing of the new drains, faucets and sink plumbing, at an average cost of $45 to $65 per hour, plus materials;