What is this at the bottom of a window?

[Tedds23]

Hello, does any one know what that square grey thing at the bottom of this (badly) fitted window is? Thanks

 

[Harry Bloomfield]

A window sill?

 

[Tedds23]

Lol, no below the UPVC window sill, grey block in the centre of the red circle

 

[Harry Bloomfield]

Lol, no below the UPVC window sill, grey block in the centre of the red circle

Pass..

 

[foxhole]

Would need a clear photo, could be anything including a scrap of cardboard .

 

[HERTS P&D]

Good luck cleaning the foam filler off the bricks.

Andy

 

[EddieM]

Looks like a ladder to me

 

[big-all]

almost looks like a vent with small square mesh
but as said could be cardboard or anything