Depending on the service you need (unclogging a drain, fixing a pipe, installing new pipes, etc.), plumbers charge anywhere from $45-$165 per hour. Plumbers often operate on a fixed rate model, too. Some won’t charge hourly rates because the variables involved in their work makes it less practical to do so. 

Plumbers will scope out the work, calculate the cost of parts, and roll it together with other fees to give you an estimate for the job. They may even offer standard flat rates for things like installing a toilet or a sink. Reach out to plumbers near you to get an accurate cost estimate for your project or repair.