Security door can not directly change the lock and do not change the door
As long as the door and the door frame are intact circumstances can directly change the lock cylinder or lock, do not change the door (change the door is very troublesome).
You can directly change the lock and do not change the door, find your home anti-theft gong angrily siege for the pressure of the door brand dealers, so that they help you (with warranty), other different brands may not lock the same lock The price is very expensive to about 400 yuan, can use the accessories as far as possible not to change.
Can be, but will affect the door of the anti-theft function. Now a lot of doors for the door, but for the ordinary steel doors. I do not know your door is not a real anti-theft door, the general price of anti-theft door in more than one thousand yuan, very weight, two or three people are very troublesome to fly, can resist the drill and other forced to open the tool for more than 40 minutes, Then up to no more than 15 minutes, the weight is relatively light, very harmed Geng indignation of the official seam for a person to be able to move. If your home is really anti-theft door construction you do not dismantle the replacement door parts. If it is not fearless.
