I have lost my keys to UPVC multi lock door. It is locked shut. Is there a way I can gain access to change the lock myself by breaking lock etc or am I going to have to pay small fortune for locksmith?
Andy

Andrew Willox, August 2006

remove the handles get a pair of mole grips attach them to the cylinder and with an up and down motion exert some force and the cylinder will snap in half pull out snapped lock remove threaded screw from edge of door look up inside cylinder hole and knock lever up fit new cylinder using key

peter, December 2006

Most locksmiths will just drill out the existing lock.
If you do it yourself just make sure that the drill bit is smaller than the barrel of the lock.
Once you've drilled through the lock use a small screwdriver to undo the latch inside the barrel.

Big Softy, September 2006