Identifying your UPVC or composite door lock can be a difficult task. There are many different brands on the market and identifying your replacement multipoint lock can feel like looking for a needle in a haystack. Please see our simple steps guide below in order to help you find the perfect replacement door lock. You can view our complete range of multipoint locks by clicking on the following link - Multipoint Locks
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Step 1
Identifying your multipoint lock?
The best way to identify your multipoint lock is to find out what brand it is. There are two ways to do this. Firstly open your door and look down the lock (The metal strip that runs down the door). Secondly look down the keep (The metal strip that runs down the frame of the door). Here you should find the manufacturers logo. The most common brands are ERA, Avocet, Fuhr, Fullex, Mila, Lockmaster, Winkhaus. You can see the complete list of our manufacturers here.
Step 2
How many locking points does your multipoint lock have? What are they?
You now need to count how many locking points your multipoint lock has. By locking points, we mean all the mechanism’s down the lock strip. These will include hooks, deadbolts, roller cams, mushroom cam, centre latch, anti-lift pins.
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Step 3
Measuring your multipoint lock?
The two measurements when measuring your multipoint lock are, the “Cenres/PZ” and the “Backset”
Measurement B is taken from the centre of the key hole to the edge of the lock strip. E.G. 35mm (known as the Backset)
Measurement A is taken from the centre of the spindle/ handle to the centre of the key hole. E.G. 92mm (known as the PZ)
You will then have to measure the outer locking points. E,g if you have a hook top and a hook bottom, you will have to measure the distance between them in mm.
Need more help? use our new tool Multipoint Lock ID form
Step 4
What kind of operation is your multipoint lock?
Check the operation of your old lock. By operation we mean how the door locks. E.g if when you close the door behind you from the outside, weather of not you need to use the key to re-enter the house. There are 3 main types of locking operation:
• Lever lever is when the door handle has to be lifted to engage the locks then turn the key once to lock. The door can be opened by pushing down the handle set from either side when unlocked.
• Lever Pad is the same as lever lever but a key must be used to gain access from outside even when the door is unlocked.
• Wind up is when the door key has to be turned several times to engage all the locks, the handle is not used to lock the door.
• Automatic Locking is when the locking points automatically engage when the door is closed, therefore offering instant security on your front door
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Step 5
What type of door is your lock fitted to?
There are two main types of door that your lock will be fitted to. A standard upvc door and a composite/timber door. The best way to distinguish which door your lock is fitted on would be to open your door and lock down the edge of your door. A composite door may have a timber core and is likely to be 44mm thick. Most upvc doors are white with a plastic look, a composite door on the other hand, comes in a variety of colours and will have a wood grain effect (please be aware that upvc doors also come in many different colours and effects). In most cases a multipoint lock that is fitted to a upvc door will have a 35mm backset and a multipoint lock fitted to a composite/timber door will have a 45mm backset.
Top Tip
In some cases, when a multipoint lock fails it is just the centre case that is faulty. The centre case is the middle part (gearbox) of your lock. So instead of replacing the complete full length multipoint lock, you would only need to replace the gearbox. Please find our complete range of centre cases/gearboxes here.
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