We had 5 large bifold panels installed across the rear of our new extension in 2012. We can honestly say that it was one of the best decisions we have made. Friends and family have commented constantly on how the garden has become part of the house and we have used them for entertaining purposes on many occasions, even attaching a marquee for a party. We would highly recommend Express - they were easy to deal with, thorough and the installation went well. The after sales care has been fabulous and particular mention to Donna who has been more than helpful.