This simple diy trick may solve your issues.
Patio door won t lock.
As a result your patio door lock can malfunction.
Troubleshooting the lock on your sliding door will allow you to try to restore it to full working order without the need for a locksmith.
Cold weather upvc door lock won t lock or shut properly.
If your patio door isn t locking repair it quickly so that your home remains safe.
If it won t lock open the door.
Sliding doors usually separate patio or deck areas from the inside of the home.
Hot warm weather upvc door lock won t lock or close.
Shut the door and try to lock it.
Tap the end of a chisel under the door stop on the striker side of the jamb.
Patio doors lead to the outside and have to withstand all kinds of abuse from the weather doors being slammed and being hit with flying objects.
As a result your patio door lock can malfunction.
If your patio door isn t locking repair it quickly so that your home remains safe.
Cold and freezing weather will cause a upvc door to not lock or close properly this is due to contraction of the upvc the shrinking can only be 1mm o r 2mm but is enough to stop your door from locking.