There are many different things we do to waterproof a foundation. The problem and type of foundation that needs to be waterproofed will determine the length of time. A sump pump or crack in poured concrete foundation typically takes a 1-2 hours. An interior drain tile system can take 3-5 days and a exterior drain tile system can take 2-3 weeks. For a free basement evaluation contact one of our Eco Dry professionals today.