Sure this must have been covered before, but can't find anything using the search.....
Noticed the louvre windows leaking, making the floor nice and wet (I can almost hear the floor rusting beneath the carpet).
A quick test with a watering can showed it to be coming in between the side of the glass and the frame. It looks like there used to be a piece of foam/brush to stop this, but I now just have a soggy piece of moss

Two questions:
1) Can I get new bits of foam/brush to fit
2) if I can, anyone know who to get the old bits out, new bits in?
Cheers,
Alex