Precision engineered aluminium doors by Dutemänn. We supply direct to the trade. A recent customer survey showed 100% of our customers choose Dutemänn because of Quality and Reliability. Our knowledge within the Aluminium Industry is second to none and you will not find a better service in the UK. We pride ourselves on delivering excellent products, on time, every time. Added to that our technical and marketing support, we provide a better value for our customers.