At J.A.S Ltd we specialise in high quality door units. The choice of materials is a key factor to each individual function. J.A.S Ltd can adapt a solution which best fits your requirements in combination with the architectural and engineering needs of your specific project. Our security door units are custom made in both timber and steel to suit your specific requirements. We specialise in pre-hung door units that ensure short onsite fixing time to reduce client cost. We will supply & fit ironmongery which will be carefully selected for each particular requirement.