We have a house built in 1926 and the foundation was poured at a time when lime was in a shortage. Over the past 73 years the walls have been affected by water seepage and are showing signs of crumbling in places. There are no apparent serious structural issues now but water continues to seep and we would like to prevent further deterioration of the foundation.
We have spoken with waterproofing contractors who suggested a sodium bentonite injection treatment all around to prevent further moisture damage. The only drawback is the cost of $7000. Though there would be no need for excavation.
1) any experience with this procedure and its effectiveness?
2) any experience with alternative methods of waterproofing?
3) and experience with repair/refurbishing old concrete in basements?
All suggestions and input are welcomed and appreciated!!