Modern doors are quite tough, but unfortunately, they have some “weak points”. Although the UPVC door locks are well designed and made from strong metal, the internal cylinder pin system and locking mechanism are delicate. If they are not handled carefully, they may get broken. When the cylinder is broken, the key will be impossible to insert or to turn. When the mechanism is broken, you won’t be able to lock the door. In both cases, replacing the faulty component is the only solution. The hinges can break if you attempt to open the door using force. They have to be replaced immediately. The frame is more prone to breaking compared to the door simply because it’s thinner. When this happens, the frame has to be repaired or replaced, depending on the extent of the damage.
Each lock for this type of door consists of two major components a cylinder and a locking mechanism. They can be replaced individually or together. The latter option is recommended when the goal is to upgrade the lock for getting a higher level of security. The Euro profile cylinder must meet the current British Standards. It should be resistant to snapping, drilling and picking. Each cylinder gets a star rating for its snap resistance. A device with three stars has the best protection from this break-in technique. The multipoint locking mechanism can be equipped with deadbolts, hooks, mushrooms and rollers. The deadbolts offer the highest level of security followed by the hooks. When the lock installation is accurate, the cylinder will protrude a few millimetres and the mechanism will work smoothly.
Locksmith SE London, 020 3608 4849, Old Kent Rd, London, United Kingdom, SE1 5UB, http://www.locksmithselondon.uk/