Several masonry patching products, such as hydraulic cement, do an adequate job of filling cracks in concrete walls. However, these products can fail after a few years if your foundation or retaining wall continues to move slightly, leaving you with little choice but to chip them out and start all over again.
If you notice large, recurring cracks or bulging walls at your house, don't try to fix these conditions yourself. The cracks might indicate a more serious structural problem; call in a professional water proofing consultant.
The Right products in any fix you need done is important to know that the issue won't appear anytime soon and there a few types of Products:
• Polyurethanes or PU grouts have two categories – Hydrophobic and Hydrophilic
• Chemical grouts and epoxies can be injected in various ways but a serious installer has various options
Initial cost is not always an accurate indicator of successful application and it's important you get proper application
• Final application includes packing the grout