I have a home built in 1919 and as most older homes the basement is unfinished but does have a cement floor not a dirt floor. We have radiater water supply pipes, expansion tanks and whatnot overhead and if you are six feet tall your bound to hit your head on something. In order to install a cieling and flooring you would only have about 5'6" I have heard that it is possible to dig out the basement floor to gain more head room. Does anyone know how this works? How much it may cost per Square foot to dig down about 3 feet? And how long it would take for about 1000 sq ft unfinished basement? Any info would be helpfull.