As with any investment you need to consider all the available options. All windows are not the same, although it may seem that way. The systems we use for our high quality double glazed UPVC windows are designed and manufactured to some of the highest standards in the window industry. By choosing double glazed windows and doors from us you are guaranteed the highest of quality that will blend perfectly into your home. As a registered member of the glass and glazing federation's fenestration self-assessment scheme (FENSA) Commerce Windows adheres to all current building regulations and relevant government legislation.