seal door draiught

My patio door seems to be square, but at the top, where one door closes onto the other, the first door seems to prevent the second fully sealing. Is this just bad design? Or can I adjust it somehow, maybe the mechanism can pull it in tighter?

I have a rubber seal on my exterior door sill. The groove in which it was originally seated had rotted at one end which I have now filled with a two pack filler (ronseal high perfomance filler). Since I had to re-mould the groove the rubber seal will no longer remain seated firmly inside the...

My patio double glazed door does not properly seal, apart from feeling the draught with my hand I can actually see the gap. This is on newly-purchased a 10 year old house. Regarding the top and bottom parts of the black rubber seal, the farther it is from the hinges the wider the gap becomes...

Good morning, I need to replace the seal at the bottom of our front door as it is damaged and is now letting in a draught. I've been googling for a few hours now and I can't seem to find a like for like replacement. Could anyone tell me from the picture what the name of this type of seal is and...