Preparing a window recess for tiling

[robbieee]

So my window currently has a frame around it. It is just a matter of ripping this wood out and plasterboarding? I want to tile all the way in.

There is a space inbetween the inside frame and the wall. Is this cold bridging? Do i need to keep this when installing the plasterboard?

 

[thompsonbrown]

quite hard to answer without knowing type of house, lintels used and window type.
If you suffer from what looks like condensation it could be down to cold bridging.
Had a victorian house that suffered from cold bridging.
If you don't have any damp around your window then the likley hood is that you dont suffer from it.
so i would fill with expanding foam cut back then tile.
Like i say hard to know exactly what you mean, but cold bridging is the problem created by warm houses, cold external temperatures and inadequate ventalation.
In older properties a gap between the lintel and the internal wall was used to prevent this from happening.
Hope this helps.