Mainstream an award winning firm is best known for their services and experiences with education, factories and councils establishments. All the products are manufactured through in house process at West Midlands. Mainstream offers you commercial windows, school windows, glass extension and porches and Edwardian and Victorian style conservatories and doors such as wooden doors, composite doors and UPVC with the installing services at your door step. These are available in a wide range of colours and designs, which is going to enhance the entire look of your house. We believe in your satisfaction and advice you with the product that suits your needs best. We assure you to provide excellent results you will be happy to experience.