A to Z is located on Quality Court right off of Highway 40-64 and near the Wentzville Branch of the Public Library. It works with commercial contractors and also has significant experience with residential customers. Prospective customers can go to the A to Z website and see a slide presentation of the finished versions of its designs and creativity. A to Z also has 25 manufacturers from which to choose products and materials. A number of them offer "green" options for environmentally minded customers.