My patio (previous owners put it in) has a major drainage problem. There is a permanent pool of water collecting in it, and only a week of dry days will clear it. I want to do something about it, but I don't know what kind of service I should be looking for.
A gardener? A builder? Plumber? Would it be a big job that requires ripping out what's there, or could there be a simpler solution? Basically any advice as to which category in the yellow pages I should be looking at!