Purchased a set of bi-folds and letterbox window for a garden room project and was really impressed with the service received from the team, as well as turnaround time. The quality speaks for itself and you can really see the workmanship put into their manufacture. After care and installation support was made available, should you need it. I think Express are definitely worth considering as a supplier for those looking to achieve an impressive finish to a project. They really finish the building off and were a doddle to fit! Already got others I know getting orders in!