Using thicker drywall ot two layers of drywall can help to keep sound from traveling from one room to the next.
Sheet Rock, Wallboard
The materials needed for drywall installation are relatively inexpensive. The most expensive part of the job is the labor. A sheet of drywall costs about $9, and the average labor cost for installation is $30 per sheet.
Costs vary greatly by region (and even by zip code). To get free estimates from local contractors, please indicate yours.