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.
For example, the homeowner converting a large living area into a home theater will usually hire a contractor to enhance exterior walls with framing, a bottom plate, and alternating studs that provide an excellent sound barrier. This is something that would cost $40 to $50 per hour in labor expenses alone.