https://www.repairmywindowsanddoors.co.uk/chelmsford-door-locks-replacement-near-me/ How to Replace a UPVC Door Replacement Lock If the lock on your door is jammed or isn't functioning in the way it should, you might be looking to replace it. It may seem like a complicated process but it is actually quite simple and doesn't require a locksmith. A few basic tools, some patience and a lot of love will suffice. Here's what you should do: Measure the Door It's possible to replace your uPVC doors if you are experiencing difficulty locking them or they won't shut. If you've recently relocated, a tenant has left without returning keys, or your multipoint gear box is showing signs of wear and tear, it's easy to swap out the barrel of your lock for a new one that provides an extra layer of security. It is necessary to take measurements prior to buying a new lock. This will ensure that the new cylinder will be a good fit and won't affect your home's security. The backset is the most critical. This is the distance from the centre of the keyhole bore hole to the edge of the door. It's typically 2 3/8 or even 2 3/4 inches. Use rulers or measuring tapes to measure this, and then record the results on a piece of paper or notepad. It is also important to know what the faceplate thickness is. This is the size at which is used to cover the lock mechanism. If you are able to, purchase another lock from the same manufacturer as these will be manufactured to the same dimensions. If you are unable to locate the name of the manufacturer or mark, just determine the width of the existing cylinder. You can also measure the width of the current cylinder by placing a pencil over the keyhole. Once you have the dimensions you can begin the process of removing the old cylinder. Start by loosening the screw holding the handle in place with a Phillips-head driver, then loosen the screws that connect the handles on the exterior and interior to each other. After removing these screws you can remove t