On average, the installation cost for a security door is £650. The installation cost can vary based on the contractor you hire and their rates. We offer our own skilled fitters who possess the expertise required to install our high-security doors. The cost of installing a door is influenced by several factors, including the door type, job complexity, and various door accessories. Steel doors are notably heavy and, in certain cases, might necessitate more than one person for transportation. FORT Premium Security Doors boast a distinctive patented design, making it imperative for the fitters to be well-versed in the product itself, given that it deviates from the norm of ordinary steel doors.