By Gene and
A drywall contractor is skilled in installing wallboard also known as gypsum board, the material that makes up walls. You’ll find them listed in the Yellow Pages and classified directory under "Drywall Contractors". Online find them using a search engine by typing "carpenter in (your town)" in the search box.
Drywall contractors price a job on a square-foot basis with a premium attached to a small job because it is not as profitable as a large job, due to all the travel time. More than one trip is required for hanging the wallboard, taping the seams, mudding the seams, and letting it dry; a return trip requires more mudding and sanding.
A professional installation has straight walls and ceilings, square inside and outside corners and window and door openings that are trimmed with molding. Inspect the walls from all angles and with different lighting, if possible, to look for imperfections.
Click Walls/Wallpapering Projects to compare how much it costs to do-it-yourself with hiring an installer.