Basement water problem
I'm hoping someone can give me advise. I am getting my parents' house ready to sell. I live out of state. It's a small house, only valued around $99,000- Rochester, NY area. The house was built in the 50's and has what is called a floating basement. There is a high water table and springs under the ground. When we were kids, the basement was damp but never wet but due to development in the area, the water table has shifted and now the basement has wet spots. My sister checked the house the other day and there is a 1-2 foot puddle about 2 inches deep by the sump pump and moisture along the floor cracks. The walls were dry. The real estate agent says this all needs to be fixed before we put it on the market. I just want to sell and be done with it. Who fixes such things? Are those companies legit that say they waterproof basements? AAAGh! Why didn't my parents fix this years ago!!
Thanks in advance. And yes, there is a dehumidifer but maybe we need a dozen more!