Crack in wall

[MrMannering]

Due to subsidence, I have a long thin crack in an external pebble-dashed wall.

Subsidence underpinned, what is best way to fill the crack?

The wall is covered in white dash stones of which I have a small supply. The crack is very thin so I don't think cement can be pushed in, is there something on the market that I could squeeze in from a tube?

 

[gday2uk]

Any external filler. Tetrion, Polyfilla etc etc etc...

 

[Shytalkz]

Major subsidence then....

 

[^woody^]

Silicone or polysulphide mastic.

Gouge the crack a little wider and deeper first. You may be able to get a colour to match the render or use clear

Or gouge it, brush in a cement slurry and repaint