How do I measure a Upvc door cylinder Lock?
The size of cylinder you need is determined by the thickness of the door and handle combination, for this reason there are many sizes available and you will need to be careful that you measure the cylinder accurately (one size will not fit all).
It is possible to measure a door cylinder in the door, but to be sure it's best to remove it first.
Measurement A - Measure from one end of the cylinder to the middle of the central screw hole (e.g. 40mm).
Measurement B - Measure from the other end to the middle of the central screw hole (e.g. 45mm).
This would be a 40/45 cylinder (85mm in length). No further measurements are required.
This applies to all our cylinder locks including thumbturns
How do I fit a new door cylinder?
How far should a door cylinder protrude out of the door handle?
Your new door cylinder should protrude between 2mm and 5mm from the handle back plates, but due to the overall lengths of cylinders available this is not always possible. It is most sensible to go for exactly the same size as you are replacing (unless your old cylinder was protruding excessively).
Can I get keys cut locally for cylinders?
Almost all local key cutting shops carry key blanks to fit our locks.
To keep your locks in excellent working order we recommend Silicone Spray Lubricant & Cleaner