"DWL provided a great service from start to finish. We first saw them at the Grand Designs exhibition while planning an extension. Their roof light was completely unique and we fell in love with it. From that point quotation right to finish everyone was very helpful and professional guiding us through the process. Survey and installation both went very smoothly despite the pouring rain we had on the day. We are so pleased with our glass roof, it truly is an amazing feature of our extension all with great value for money"