Origin is the UK’s leading specialist manufacturer of aluminium doors and windows. Designed and manufactured at Origin’s impressive Buckinghamshire factory, each and every product is bespoke and available in a huge variety of configurations. Origin Bi-fold Doors are distributed throughout the UK through a network of accredited Origin partners. Exceptional care is taken in designing our sliding folding doors for durability and long-term performance. Only ultra-high quality components, specially designed by us. Each one of our skilled craftsmen takes pride in creating the best Bi-fold doors money can buy. That's why Origin Bi-fold Doors are guaranteed by us to perform faultlessly for at least 20 years. Each bespoke door set comes with a unique serial number that guarantees the doors at the property for two decades. No other manufacturer of bi-fold doors guarantees their products for this length of time.