who to contact for basement leak repair
We're in a 1918 bungalow which sits on a 37'x125' lot. Our neighbors on both sides are about 12' away and we all have small yards. The ground in our entire neighborhood is clay. The grading at our house is generally ok on 2 sides but probably could be improved on 2 sides of the house. Our basement is 1/2 finished and 1/2 not. The finished portion has tile squares for flooring. The unfinished portion floor has some cracks in it. During the last 2 heavy rains, we have had water come up through the cracks - not alot but enough to require a quick sweep to aim it toward the drain. No water comes through the walls. It just seems like the rain falls, the water moves under the basement and then comes up.
We'd like to tackle stopping the water coming in. Who do we call for this?
1. If we just seal the cracks, what happens to future rains that fall on clay soil with homes so close together?
2. Do we attack the outside and put in a drainage system only (fixing the grade on 2 sides as well)?
3. Do we add exterior drainage and improve grade AND seal from the inside?
4. Do we need to pour new concrete in the basement? Can we get by with just patching the cracks? If new concrete is needed, how do we deal with the transition from unfinished to finished floor? Yes, new drywall walls are in place.
5. What kinds of companies deal with this? Now that it's Dec. 1 and we're in the Chicago area, do we deal with this now weather-wise or do we wait til spring?
We're pretty good DIYers so could do some of the work but we're still in the early info gathering stages so don't know alot yet about what would be involved. This is a new one for us.
Thanks for any ideas you have.