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Sliding door locks come in two basic types you have the Sliding Door Lock which is the handle lock that you close the door with and there is Patio Boltsplus a third see  Commercial Locks.

Sliding Door Locks:

Sliding Door Locks come in a number of different configurations brands and setups we recommend the Albany brand that comes in a number of different key formats and handle options but they all have the double hook and anti slam setup.
 
Albany non keyed;this lock has a D-handle on the inside with a lever snib under it to operate the double hook locking mechanism and an external slim pull on the outside.
For pricing click here.
 
Albany keyed;this lock has a D-handle on the inside with a lever snib under it to operate the double hook locking mechanism and a external slim pull on the outside with a key in it to operate the double hook locking mechanism.
For pricing click here.
 
Albany Deadlock Double keyed Daylatch;this lock has a D-handle on the inside with a lever snib under it to operate the double hook locking mechanism plus a key in the middle of the lock body and a external slim pull on the outside with a key in it to operate the double hook locking mechanism. When locked with the key you have deadlocked the door so no one can go in or out without unlocking it with a key. If you lock the door using the snib (Daylatch) from the inside then you only need to use the snib to exit but from the outside you will need a key to enter. For pricing click here.
 
Albany slim pull both sides;slim pull on inside with key instead of the D-handle and snib lever the key has a knob on it called a securiturn which operates the double hook locking mechanism. The outside has the standard slim pull and key.For pricing click here.
 
Albany mortice lock;They have similar configurations as above except the lock body that holds the double hook locking mechanism is not surface mounted under the handle as in the above locks but is morticed into the edge of the aluminium extrusion like a normal hinge door lock where you have the tongue of the lock coming out of the edge of the door. The advantage of this setup is rods can be attached to these locks which run up and down inside the door extrusion which creates a situation where the door is locked from three places in the middle by the handle and in the top and bottom making for a very secure door. They are usually found on newer sliding door setups.
  

Patio Bolts:

Patio Bolts are fitted to normally the inside of a sliding door at the back top they one prevent the door from being slide and second stop it from being lifted. When we fit these we often put a second hole so the door can be bolted in the open position to give air recommended for when you are in the house it just stops someone from walking though an open door uninvited. There are a number of different versions of patio bolts but all have a bolt lockable by key some are small and some are large but all do the same thing. (Note: they can also be fitted to hinge doors see  Hinge door locks.)  
For pricing click here.

Locks Jamming:

As your joinery becomes a little older and things start to wear and even newer homes with building movement etc locks can get out of alignment and jam the worst thing to do is force it or slam it as this could increase the problem. Give us call we’ll sort it out. If you get onto it right away it quite often just needs the door re-squaring up or the lock striker plate adjusting. However if it needs replacing we carry a comprehensive range of locks and parts.