Hi Spec Windows is a Birmingham based manufacturers of windows, doors, patio doors & conservatories & trade customers own toughening glass plant (furnace). They also do design & install doors windows and conservatories which are supplied & fitted by their own qualified installers. It is the only window company that supplies toughened glass to trade Hi Spec Windows is a Fensa registered family run business with over 20 years industry experience offering window fitting, http://www.touchbirmingham.co.uk/business/list/bid/6663736 http://www.hispecwindows.co.uk