The Period Metal Window Company Ltd; Crittall Windows Replacement; Thermally Efficient Aluminium Windows; Secondary Glazing; Crittall Replacement Windows; Metal Replacment Windows;

Secondary Glazing

Our slim-line, aluminium secondary glazing is designed to eradicate draughts and increase thermal efficiency whilst integrating seamlessly into your existing timber frames or stone mullion frames.

We use modern materials and methods to ensure lasting performance without compromising your windows existing charm.

Easily fitted into your original timber frames or direct to stone work, our windows are draught proof, thermally efficient and comply fully with the latest Building Regulations.

Idea for many Grade II Buildings or Conservation Areas where it may not be possible to replace your metal windows or wooden windows with double glazed units.

The secondary glazed units can also be fitted with fly screens for summer use to allow windows to be left open but protect from insects etc entering the property via the open window.

The secondary glazed units can be fitted with double glazed seal panels which increasing their thermal efficiency even further.