Vertical foundation crack new construction (2 leaks)
Hi everyone! Sorry for the long post. It's been very stressful owning a house and having problems. Looking for input.
New construction early 2026, in IL. Half finished basement. We had couple nasty storms and started having problems in our house. This is our first house and it's been stressful dealing with these problems already. Fully soded with irrigation system and graded appropriately.
#Crack 1 with leak- First was during a heavy flooding rain we noticed water seepage in our sump pump room. This crack is facing the front of the house and above it is our landscaping mulck area. Foundation guy fixed the vertical crack it with polyurethane, no more leak after that even with a heavy rain.
Crack after removing the insulation
# Crack 2 with leak - noticed this in HVAC room recently after sprinklers were running. Foundation guy checked and said he would do the same polyurethane fix.
Small leak with sprinklers running
Exterior side of the leak I saw this crack.
# Other not leaking cracks yet!
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Our house is on an elevation and I thought I'm protected from water issues because the grading is away from the house. I don't know what to do. The builder and foundation company guy said these are expected given the weather in IL and the nature of concrete. They said they will take care of the cracks whenever there's a leak. I have a builder warranty until June 2027. This is not a fun experience.
How screwed am I?
How should I approach this?
Appreciate any helpful input.
Posted Sep 11, 2026, 3:22 PM UTC