I am looking to build a (approx.) 13'x9' pressure wall in an apt. in DC. I have found a ton of companies that do this in NYC, but I am having trouble finding people to do this in DC. The most important thing is that the wall doesn't do any damage to the surrounding floor or walls, and can be removed easily. I am also looking for something as inexpensive as possible. Does anyone have any suggestions, or know of any good contractors?