Sticking doors and windows: settlement signs
When a foundation shifts, door and window frames can twist out of square. If doors that used to close easily now stick, rub, or won't latch, settlement is one possible cause.
What to look for
- Doors that rub at the top corner or won't latch
- Uneven gaps above a closed door
- Windows that suddenly stick or won't lock
- Problems that change with the seasons
Why San Antonio homes show it
Most Bexar County soil is Blackland Prairie clay that expands when wet and shrinks when dry. That shrink-swell is the primary reason for foundation issues in the county (Texas Master Naturalist, Alamo Area Chapter).
Symptoms alone don't diagnose a foundation. It may be cosmetic or a drainage fix. A professional inspection tells you which.
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LevelSATX Foundation Network connects San Antonio homeowners with vetted, independent foundation repair contractors. We don't perform repairs; participating contractors pay us for referrals.