hi all about 5 yrs ago we had all new windows and doors fitted we got a bit of condensation on them the company said that was normal, it has gradually got worse so today i decided to try and cure it and heres what i found, when they put the sealed units in they used plastic packers to fine tune the fitting of the units in the frame but they covered the drain holes and when i took the seals out there was loads of water in the frame rebate should they be like this or should i move the packers so the water can drain and let let air in to keep it dry. i cant get the installers back in as they went bust 2 yrs ago