Whether you are looking to improve the security at your home or workplace, mortice deadlocks offer a great level of added protection, ensuring that your property benefits from an added layer of security. When a door has been shut, the deadlock automatically kicks into action, immediately locking the door behind it and can only then be opened again with the key. Construction Supplies is pleased to offer the finest quality mortice deadlocks by brands including Zoo Hardware, From the Anvil and ERA Home Security, offering great, long-lasting protection and security.