Like many construction things, this depends where you are. Phone around locally and you will find many prices.
Consolidated Builders here.. We charge from $1.50sf in NEPA www.consolidatedbuilders.org
Sheetrock, drywall or gypsum are insulators.
should you install sheetrock horizontal or vertical
Yes, sheetrock is fire resistant.
No it will actually ruin your Sheetrock or Drywall
Not much. Sheetrock has a very low profit margin. There is very little money to be made selling sheetrock. Party due to the fluctuating cost of the product, and also because it's damaged so easily by mishandling. Packing and installing sheetrock, however, can be very profitable due to the nature and difficulty of the work.
yes
No, you may think you can, but the paper will just come off the sheetrock.
Demolition is correct.
in southern Tennessee the average cost is 6 dollars per board to hang the sheetrock(4 x 12 sheets) and 12 dollars per board to finish it. This is for the number of boards purchased, One quick note, when hanging sheetrock most people will not piece sheetrock they will only use full sheets, this seem like alot of waste but it results in a look that is smooth and neat. Good Luck
$15,000 to $20,000 is the average cost of home demolition. However it will cost you extra up to $5 per foot to remove asbestos.
yes if you have framed unfinished walls, measure then deduct finish such as sheetrock