Question: how much it cost to waterproof your basement?
Answer: The average cost to waterproof a 1200 sq. ft. basement is $3,000 - $5,000. This includes labor costs and all materials, including: evaluation, repairing defects, waterproofing walls, cleanings gutters and window wells 1, installing a sump pump 2 or french drain 3, and epoxy 4 injection.