I am in the process of having my old double glazing repalced. The upstairs has been fitted but where the old units fitted flush up to the internal walls the new units have a 2 inch gap from the units to the front face of the internal wall. Is this normal or poorly measured / fitted units. On the one which has been fully completed they have filled the gap with a little foam and put a piece of pvc trim over it.
This morning i woken due to outside noise which is more audible than with my old units that had failed and had gaps due to the hinges dropping.
Also i had cemented and tiled cills before which have been removed and replaced with pvc cills. There is now a gap under the cills of about 1 inch. Should this gap be there or again is it because the windows have been measured wrong.
its difficult to comment without pictures,when measuring windows you allow the new window frame to be 10mm shorter in width and height to make fitting easier,Also on the internal finish I always fit a plastic trim as there is always a slight gap and it looks neater. The new frame sits as tight as possible to the internal plaster,but sometimes its not possible to do so
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