Many times when the lock malfunctions, the door is actually responsible for the problem. If the door is difficult to close and lock, there could be a weather seal getting in the way. A close inspection will confirm this. Worn and damaged seals should be replaced timely, especially if they've detached and mess with the functioning of the door. If the bolt doesn’t move smoothly during locking and unlocking, but the strike place sits firmly in place, the door may be misaligned. If the unit doesn’t fit the frame properly, the hinges have to be readjusted. They have special screws for the purpose. Accuracy is paramount for door adjustment. After the job is done, the unit’s closing and locking functions should be tested to confirm that all is fine.
There are various signs that the lock cylinder has failed and should be replaced. The key is difficult to insert and practically impossible to turn inside the lock. The replacement cylinder must be made from brass or stainless steel. It should be resistant to snapping and have a special curtain feature, which prevents picking, to conform with the British Standards for UPVC door locks. It should be able to withstand drilling for at least five minutes. A faulty multipoint locking mechanism will make the handle loose and locking difficult. It should be changed without delay. The new mechanism should be chosen carefully. Deadbolts are excellent locking points and so are the more advanced security pins. Hooks can do a good job when they are big and thick.Back To Our Services