Sound insulation

[LBerry]

Looking for Builder or similar:
I need to soundproof a ceiling/floor between a bedroom and a living room against footstep noise going downwards, and airbourne noise going upwards. I have access to the joists, as the floorboards can come up as part of my re-wire, and I will ensure they are screwed back down. I have looked into various options, but am on a bit of a budget. I think that the options are mineral wool/DFM between the joists, sound matting on top of the floorboards (T50 or similar) and acoustic underlay instead of the current underlay. My question is this: If you could only do two of these three options due to being on a budget, which two out of the three would you do for maximum efficieny. Many thanks in advance. Keep up the good work.

[StevieBoy]

Insulation is measured in R values.
Generally walls are 1.8 to 2.2 and ceilings 2.6 to 3.2

Have a look at any largeish construction projects in your area and ask to see the Project Manager.
Tell him you are doing a small job and a crate of beer for the boys of a Friday is in the back of your car boot if he has some spare insulation. Preferably R3.2....
Or ask for the insulation subby's number if thats a no go.