I've got a whole loft floor to insulate, 300mm. Approx 6m by 6m. Where is the best place to buy it all and get delivered? When I insulated my old house it was when b&q were selling it subsidised by the energy companies. I was just popping along and chucking a couple of rolls in the car every so often. Its a lot more expensive now. I havent got any trade accounts anywhere etc. Am i best off just google searching it?