Is gaps in beading and panels common issues with fitted uPVC Windows?

In short, there should be no large gaps as the windows are made to measure and the beading should be measured and cut to the exact requirement. If there are I would suggest this is poor quality and the beading in most cases can easily be removed and replaced by a quality installer. Gaps in beading can occur if the beads have been incorrectly measured at the manufacturing stage or incorrectly applied during installation. It is not a problem you should expect from any reputable installer. DNA Home Improvements we would not allow this poor quality workmanship. For a fuller explanation, any new quality double glazed window definitely shouldn't have large gaps in the beading. Upvc windows are bespoke tailor measured and manufacturer products. The frame, bead, and glass should all be made to be made the exact required measurements. A uPVC window (or a PVCu windows as they are actually technically referred to) are manufactured from a solid extrusion of outer frame, transom, mullion and sash profiles. These lengths of profile cut and welded to size to create the frame element of the window. have a regress on the outside. In most cases upon installation, the glazing is added into the frame once the frame has been fixed in situ and butting up to the outside edge of the frame. Then the glass is then added and this is held in place by the beading which is fixed in place by the installer. This beading should be cut to the exact required size and therefore there should not be any large gaps at all. The beading serves several purposes - • It acts as a security against glass removal • It forms a secondary barrier against water and wind ingress • It finishes the internal aesthetic of the window. Gaps in beading can occur if the beads have been incorrectly measured at the manufacturing stage or incorrectly applied during installation. If there are any gaps in the beading these will have very little adverse effect on the security or thermal performance of the product, but clearly, they will ruin the aesthetics for your new window and are therefore not acceptable.

Don’t sound right to have huge gaps can you put a picture up so I can have a better look please

No there shouldn't be any gaps ,,it sounds as though they haven't put the correct thickness of glass or panel installed that's why there may be a gap..it's supposed to be draught proof and watertight,