i live in an end unit townhouse that has three levels which includes a basement. the upper two levels are above ground. when it rains the basement level in the bedroom gets wet with water but only in the corners of the room. i had the gutters secured and this seemed to reduce the amount of water that enters in the basement level but has not stopped it totally. i have also noticed that on the third level which is where the bedrooms are that in the master bedroom the floor is wet as well. it is only in the corner that is unprotected by another townhouse. it seems to have been doing this for sometime. i have checked the area on the 2nd level to see if there is a wet spot in the closet that is directly below this area and there are no stains, or wet marks. also in the bedroom the walls are not wet of changing colors. does anyone have any idea what can be causing the leaks in my home? will this cost alot of money to fix? please help!!