Please fill in the items bellow and then press submit, also I require a photo of the area in mind, so I can plan accordingly. 
All photos to be sent along with your name and address to lost.heron@yahoo.co.uk thank you.
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It is not possible to spray on all surfaces, don't forget to consider these when applying.Pebble dash or similar is a no go.
Brickwork is usually ok but need verification.
Rendered walls are usually ok, as long as they,re flat.