One area that homeowners are aware of but often forget to tell the paving salesman about is the drainage problems that happen every time it rains. We had a situation that was evident and this time the client was not aware of the water problem. The ground felt very spongy when I walked on it and asked if they had recently done anything in the area which was to be paved. The owner of the house said that they put their sprinklers on 3 times a week but the ground was always quite spongy.
On careful examination I saw that there was nowhere for the water to run off so it just saturated the ground. All the water ran to one corner and pooled there while slowly sinking into the ground and the ground was getting water logged. I told the owners of the house that the problem would multiply once the paving was laid as there would be no place for the rain water to drain and consequently it would simply pond and eventually begin to create a foul smell. Luckily the answer to this problem was simply to make a neat 10cm hole in the wall to allow the excess water to run out of this enclosed area.
Not every water problem has a simple answer but there is always a solution if looked at constructively. Sometimes a simple raised header course is all that is needed, other times it may be that a drain needs to be built and in most cases it simply needs the paving to be laid correctly to allow the rain water to run away from the house and walls.
Don’t ignore your water problem, discuss it with your paving company and let them propose a solution. You don’t have to accept their proposal but it could have a solution to the damp starting on your house walls. Try resolve the problem before it happens.