Adding Basement Next To Existing House - The cracks in the basement wall won't generally weaken the arrangement of your base, but they will cause different problems namely, water issues.
If it rains out, particularly in the event that you don't have clean and functional gutters, lots of that water builds up from the exterior of your cellar wall. If you don't get routine basement wall fix to keep these cracks shut, some of that water will get into your basement through these cracks. Even if your basement has a waterproofing membrane on all of the exterior walls, a Substantial enough crack can tear or even shred the membrane and then you are in trouble all over again.
Get Rid of the Crack with Basement Wall Repair - Most homeowners should immediately call an expert when they realize there are traces of water leaking into the cellar. Most such fractures can be repaired from the inside in a cost-effective and timely fashion that does not disturb the soil or that which remains of the watertight membrane on the exterior.
The best method to perform the basement wall repair is by injecting an expanding liquid urethane foam into the crack. When the liquid encounters water, it expands dramatically, forcing the foam up and down, inward and outward across the entire length and depth of the crack. It dries and becomes watertight in minutes, sealing the crack perfectly. Because it begins as a liquid of roughly the same viscosity as water, it will go everywhere that the water goes. Because it ends up a foam, it is relatively easy to cut off and, if needed, sand down any of the foam which develops inward however usually, that is not a big issue.