Damp problem resolved-now walls need treating+painting

We've currently had a damp problem within our property which we have now had fixed. There are several walls that need treating to prevent damp happening again and then they need repainting and blending into the rest of the unaffected walls. Does anyone know how we could create the stippled effect, that is the current style of painting through our house.

You can hire a gotalay sprayer from San Luis hire shop if there is a lot to do. If small amount, you can buy a spray can in Leroy Merlin

those wall still seem damp to me waste of time and money painting them looks like they need stripping back to the blocks

Have you got aircon in that room if so put it on the dehumidifier mode, you can but a stipple roller small one get some good paint like Titan Exterior thickish coat then roller it with the staple roller no good with wushu washy paint

We have damp in our utility room, looks just like this. What did you have to do to resolve this?

Looks like condensation, plenty of air and a dehumidifier untill dry then paint.