The national average cost of an exterior waterproofing job for a basement is typically between 8, 700 and 14, 500, but may be more or less depending on where you live. The price can be as high as 80, 000, depending on how accessible the targeted areas are, how much digging is required and how much landscaping or other work must be restored. The cost of basement waterproofing can typically range between, 000 but could go as high as above 50, 000 depending on the size of the building. External waterproofing is a big job and should always be handled by professionals. What type of plaster for outside wall? MyBuilder The surest way to waterproof your basement walls is a fullscale exterior waterproofing solution. Its also the most expensive often 15, 000 to 30, 000. Exterior waterproofing involves excavating all around the house to the full depth of the foundation walls, then installing a waterproof coating or membrane topped by drainage panels. How can the answer be improved. Hiring someone to repair and seal your basement interior can run 2501, 000 or more; if the project also includes outside excavation plus installing a waterproof barrier and footer drains, the total cost starts around 5, , 000, but can run 11, , 000 or more. Depending on a number of variables, that cost can range anywhere from 2, 024 and 6, 140. Per square foot, expect to spend between 5 and 10. Your basement could flood for a number of reasons. You might need to repair cracks in your foundation or add gutters and drains to your home. Jun 26, 2014Whether the source of the problem is a wall crack, bad mortar joint or patch of porous concrete, there is an exterior waterproofing solution that is made to order but only an experienced basement waterproofing contractor will be able to recommend and implement it. The cost of basement waterproofing has many variables, most notably the ways in which a basement can get water into it in the first place. Some basements, or entire homes, have problems with condensation, the appearance of water drops and sweat on walls and ceilings. 2019 Average Basement Waterproofing Cost Thumbtack Exterior Painting Costs: What can I Expect to pay? Paintzen Dec 19, 2018The cost for waterproofing a basement can range from 500 to 3, 500 depending on the extent of the waterproofing and amount of work involved. Waterproofing is an important precaution for basements that are prone to moisture buildup or leaks, as water damage can cause mold, as well as expensive damage to the homes foundation. Basement Paint Ideas Painting Colors and Waterproof Sealants Exterior waterproofing relies on a waterproof membrane sprayed or brushed onto the exterior face of a homes foundation walls to create a water barrier. The best time to apply an exterior waterproofing membrane is during construction of the home. When estimating the basement waterproofing costs, it's important to keep a few facts in mind. First, it is necessary to identify the source of the moisture that is making its way into the space.