NATIONAL SEAL SYSTEMS LIMITED

National Seal Systems Ltd is a family-run business that has been supporting Irish manufacturers since 1978. Drawing on a network of dozens of international partners, the company supplies a comprehensive range of sealing and hardware solutions, helping clients across the island to enhance the performance and durability of their products.

Their portfolio includes specialist weather-seal systems for uPVC, timber and aluminium windows - notably the Schlegel range and the Q-Lon foam seals - as well as advanced security hardware for doors. National Seal also offers cutting-edge automatic multipoint locking systems from Winkhaus, complete with remote-control opening, demonstrated through dedicated video resources. By continually sourcing innovative products and providing expert advice, the firm enables manufacturers to meet demanding standards for energy efficiency, safety and reliability.