How much does a plumber cost per hour?
Typical rates are $50.00-$75.00 + trip charge and materials. It will cost you more to have this done by the hour. Get a plumber who will give you a firm estimate in writing, which is usually not free as you could then shop it and the plumber looses time spent. I would charge $75.00 for an estimate. Most plumbers charge per fixture. One rate to rough it in and one rate to trim it out + materials. Not knowing details of existing plumbing, an estimate of time required is impossible. Just guessing, 6 hours to rough in & 4 hours to trim out.