Quote Originally Posted by Jimfish
yeah mate - if its downstairs you are worried about put in a false floor innit.. saw this on blue peter:

clear the room but leave the carpet down
chuck down some strips of 4x2 around the room tight up against the skirting board then some lenths across from one side to the other leaving about 2 ft between each. Cut some nogs to wedge between them - about 3 for each length and screw the whole lot togethor.
In all the gaps fill it with rockwool or on a budget get a SHITLOAD of newspaper and bunch it up very tightly into every little gap.
Get some manky old carpet and cut it into strips about 6" wide that run the length of the room. Double it over and lay it onto the 4x2 in your frame
oh i forgot to mention, if the door swings into the room you may have to rehang it on the other side of the door frame so it opens outward.
Then when youve got the frame down, covered with carpet and filled with whatever slap down some big sheets of plywood and screw em down tight. Then if you can get another crappy old carpet or some underlay stick it on top of it all and then a decent one top go on top of that. Should be able to do it all with eighty quid and a bit of skip-hunting and it'll stop the neighbours listening while you beat one out

or you could just move to a new flat.