Thanks to our great choice of nightlatches, deadlocks and sash locks, Construction Supplies has your home security well and truly covered. Not only to these items increase the security of your home or office, they are also available in variety of styles and finishes, and help to improve the appearance of your doors rather than take away from it. Available from leading brands including ERA Home Security, M. Marcus Limited, From the Anvil and more, our nightlatches have been extensively tested and are proven to offer great performance every time.