The first symptoms of whooping cough are similar to those of a common cold: 1  runny nose. 2  sneezing. 3  mild cough. 4  low-grade fever.
Most contractors include overhead in this estimate, as well as the cost of storing the materials, delivering to the site, paying the workers for the installation, and cleaning up the job. The cost of labor for drywall is typically broken down by square foot, and this number varies by location. As of the time of this article, in the Bay area, drywall labor can cost as much as $1.30 per square foot, especially when choosing a licensed and bonded contractor.
Drywall materials (drywall sheets plus screws or nails, joint compound, tape, etc.) average 25 cents - 65 cents a square foot; professional installation is an additional 85 cents -$1.50 per square foot. Installing new drywall on the walls and ceiling of a 12x12-foot-room with 8-foot-high walls means about 530 square feet of drywall.