I have a single brick garage which is extremely damp inside. Anything I keep in there get covered in mould. There appears to be a damp proof course at the bottom of the garage but one wall in particular is very wet.

Can anyone suggest what I should do to dry it out and what I should treat the walls with etc.

Any help would be appreciated.

check for roof leaks ,also take a look at the brick pointing....keeping the door open as much as possible will help to dry it out

good luck