Sloping & Uneven Floors: Is It Your Slab?
A floor that pitches to one side or feels “off” underfoot is one of the most direct signs that part of your slab has dropped. Here’s how to confirm it and what the fix looks like.
The marble test
Set a marble on the floor; if it consistently rolls one direction across multiple rooms, you likely have differential settlement, not just a worn subfloor. A free elevation survey measures the exact drop.
How much slope matters
Many engineers flag movement beyond roughly 1 inch over 20 feet. We measure to ±⅛ inch and show you where the low points are before recommending foundation leveling.
The repair
Steel piers driven beneath the settled area let us lift the slab back toward level and lock it there. Homeowners in Round Rock and Georgetown see doors and floors recover together.
- A marble rolling the same way across rooms suggests settlement.
- Engineers often flag ~1 in / 20 ft of slope.
- Steel piers lift and lock the low area.
Not sure how serious it is?
Get a free, ±⅛-inch elevation survey and a written, engineer-backed plan — no pressure.
Book my inspectionFrequently asked
Could it just be an old wood subfloor?
Will leveling crack my tile?
Related guides
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foundation inspection.
Tell us where you are and what you’re seeing. A GroundLock structural advisor confirms within one business hour.
Get your free foundation inspection.
A licensed inspector measures your slab elevation to ±⅛ in and gives you a written, engineer-backed plan — with zero pressure.