The national average cost to hire a drywall installation professional ranges $375-$1,500, depending on the job at hand and where you are in the country. Your drywall installation cost will often be lower if the professional is installing the drywall in a new construction with open access as opposed to a remodel. The square footage of the job, the amount of materials, and the labor required also determine drywall prices. According to drywall pros, materials costs can range from 15 percent to 50 percent of your total project cost, depending on the work you’re having done. Request several quotes from drywall installation companies to find the right fit for your construction project. The quotes may be based on the company’s standard cost per square foot or a calculation of the time estimated to complete the job plus the size of the job plus materials and any travel fees. For example, drywall installation for one or two standard-size rooms could cost $900-$1,500. The cost to hang and tape an outbuilding with approximately 40 drywall sheets at 75 cents per square foot could total $1,450, including 3.75 days of labor for the drywall crew.