You may be required by your insurance company to fit your "final exit" doors with at least one lock that complies with British Standard BS 3621. This could be either a nightlatch, deadlock or sashlock. If you fit the wrong type of lock or locks to your final exit doors, you risk invalidating your insurance policy. We strongly urge you to consult with your insurance company carefully before fitting your house with new locks.
At Next Day Locks, we understand that industry terms can sometimes be more confusing than helpful! That's why we created a glossary of commonly used terminology as well as a list of popular industry abbreviations to help you find the right product for your application. And if you still can't decipher the industry jargon you can always get in touch.