desgnr wrote:
I have a single hung window that will not lock.
When i try to lock it the sliding lock just misses the grove in the
window where it locks.
If i tilt out the lower sash like to clean the window & tilt it back up
& close it, then it will lock.
How can i fix this problem ?

Put a stick between the lower and upper sash.

--
LSMFT

I haven't spoken to my wife in 18 months.
I don't like to interrupt her.