Has anyone had any air leakage problems with there windows, when we shut ours they let in Air around some of the rubber seals, aslo our £6000 Street Door keeps letting in Air unless i literally lock myself in the house, as their is not enough suction when i close the door and even with the key in the lock i still get Air coming in on windy days, i do not like locking my self in as if there is a fire it is a hazaerd and if i leave the key in the lock no one else can get in with there keys