The surest way to waterproof your basement walls is a full scale exterior waterproofing solution.
Waterproof basement walls exterior.
A waterproof membrane is often installed on the outside of the basement wall and the system also requires putting in a buried sump pump where water will collect and then be pumped to the surface.
Tar will become very brittle and will crack eventually.
It s also the most expensive often 15 000 to 30 000.
Do not use tar.
Exterior waterproofing is a highly effective waterproofing method and can be completed on basements with both poured concrete or masonry block walls.
Waterproofing the exterior of your basement will cost between 9 000 to 15 000 for the average home most professionals will tell you that the best way to waterproof your basement is to fully waterproof the exterior but it s also the most expensive option.
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.
Exterior basement waterproofing involves digging out the dirt around basement walls applying a moisture barrier and installing a specially designed dimple board that deflects water away from the.
Don t use limestone to backfill.
Whether 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.