Crittall Style Windows and Doors

We design, manufacture and install crittall style doors, windows and room dividers to provide a long-lasting, timeless choice to your home.  Our steel windows have the slimmest of sightlines allowing maximum light into your home. We also have a range of styles ranging from cutting-edge to traditional. Not A Box offers a selection of steel door finishes ranging from traditional powder coating to bespoke liquid metal finishes.