How to fill 10cm deep hole?

[SeanJacob]

While removing the skirting board I uncovered a 10cm deep hole, how would you fill?

I was thinking expanding foam, or fill with rubble and easiFiller?

Thanks for any help,

Sean

 

[EddieM]

Personally I'd chop out the remaining crap and mortar a couple of replacement bricks in, doesn't matter what sort of brick as presumably it'll be covered eventually anyway.

 

[Tigercubrider]

is that the area to the side of a door/French window?
Looks like the right hand side is the external wall.
Don't go mad with foam or the cavity will fill up.
I'd use a chunk of brick