These days, insurance policies tend to specify a required level of security for your doors and windows, or to offer you a better price for a specified level of security.
It might require that the final exit door be fitted with a five-lever mortice deadlock. It might specify a British Standard five-lever mortice deadlock.
It might specify mortised bolts for non-final-exit doors.
It might specify locks for windows.
We can assist you in assessing your security situation and help plan any necessary upgrades. It's free within the local area: Clapham, Battersea, Balham and Stockwell.
Please telephone or email us for more information.