Patio Doors locked and will not open ?
The patio doors on my house which was only built about 5 years ago, when we locked the door we heard something fall into the door and the lock will not work, the key turns to about the 4 oclock piont one way and then 8 oclock the other way but we can not now unlock the doors can you explain what this might be and how to open the doors and repair
Colin
March 2011