Cat Flaps In Kettering

Attempting to cut into an existing double glazed sealed unit to fit a cat flap will break the argon or air seal between the panes. Once that seal is gone, warm moist air enters the cavity and condenses on the inner glass surfaces, causing the familiar cloudy or misted appearance that cannot be cleaned away. The only remedy at that point is to replace the sealed unit anyway, so the shortcut ends up costing more. A qualified cat flap glazier in Kettering knows that the correct approach from the outset is to supply a new unit with the hole already prepared under controlled conditions, then fit it so the frame seal is intact. This is exactly the approach Montrose Glass takes.

An ill-fitting cat flap is also a practical problem beyond the glass itself. A flap that sits loosely in its aperture lets in cold draughts, driving rain, and even unwanted animals. In Kettering’s older Victorian terraces, where original frames may already be working hard to keep draughts out, a poorly sealed pet door installation makes that problem noticeably worse. Professional glass cutting and precise fitting ensures the flap sits flush, the surrounding seal is sound, and the finished result looks clean and tidy. For homes where a window itself needs attention alongside a new flap, our Double Glazing service covers supply and installation of full units across Kettering.