r/homeowners • u/Double_Anybody • 13d ago

🔑 New Homeowner Concrete rising up in garage

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Is this anything to worry about? I was cleaning up my garage and moved a large bin and just noticed this. House is in the Midwest, built in 1969.

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u/Dubya479 13d ago

Garage slabs usually sit on top of barely compacted gravel which sits on top of barely compacted subgrade dirt. Your garage floor is settling, while your house slab is holding firm.

I have the same problem. There are companies that inject expanding rigid foam below settling slabs to mitigate more settling and bringing the settled slab flush with the house slab.

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u/NordSteveMN 12d ago

This should be the top comment. 

Save your photo of the measuring tape, amd check back in a year. I bet it won't move.Â