replace uPVC Windows lock mechanism

[bickyz]

Hi,
Lock mechanism on one of my uPVC windows has stopped working.
The one I have now has 22mm backset, can I replace it with the different type of the lock mechanism that has 22mm backset size & new lock keeps.

this is what I have:

I would like to replace it with something like this

https://www.handlesandhinges.co.uk/coldseal-tallon-replacement-window-lock-kit-600mm/


Any help would be much appreciated, thank you.

 

[crank39]

Yes, the gold keeps though are usually specific to the profile of the pvc and rather than being flat bottomed they have cut outs to bridge the shape of the profile, the keeps in your picture however are universal (don't ask how I know), they will fit by just sitting on top of the ridges and not around them, I find even screwed down tightly they have a tendancy to twist when the mushroom engages into the slot

 

[Notch7]

It might work, it might not!

The problem is the upvc profile determines where the lock and keeps are positioned, a new lock might not be the same. Although the centre of the mushroom on the lock should line up with the inner keep slots on any profile, not all profiles will leave enough space for a keep to fit.

A standard mushroom espag and keep may well work.

There is more than 1 height of mushroom available.

Flat bottomed keeps, are often used for timber which has a flat rebate. Upvc manufscturers will select a keep that slides on their profile as it makes alignment automatic. As Crank says, the universal keep may work, but mighg not sit flat