Box Sash Windows

Introduction

Our Heritage Box Sash window is designed to replace original period windows found in listed buildings and in sensitive conservation areas where double glazed products are not appropriate, and where full compliance with modern Building Regulations is not required. The Heritage Box Sash window is single glazed in the traditional way, using putty and true glazing bars, which are available in a variety of glazing bar sizes and profiles including Gothic, Victorian, Lamb’s Tongue and Queen Anne Ovolo.

The Heritage Box Sash window is manufactured using slim frame and sash sections and operated using cords, weights and pulleys to counterbalance the sashes. Typically this window would be set back in a rebated reveal construction so that the box is mostly hidden by the external brick or stone although it can also be seen positioned close to the face of the brickwork with the box visible and dressed with an architrave.