Hi, I'm in the process of finding, and hopefully fixing, all the draughts in my very draughty house. I've always suspected that there's something amiss behind the kitchen units because the crockery we keep in them is always extremely cold. I've taken the plinth off the sink unit and I've found that there's a gap between the bottom of the plasterboard and the floor i.e. the plasterborad doesn't meet the floor, and I'm pretty sure that's part of the problem. Not quite sure what kind of construction the walls are, but I think they're of the kind where it's brick outside, breeze block inside with plasterboard (dot and dab?). I haven't taken all the plinths off but I suspect that this gap is all the way around the kitchen - at least on the outside walls. Any suggestions as to how I could fill the gap between the plasterboard and the floor? I'm pretty sure the coldness in my house is caused by draughts behind the plasterboard escaping at various points.