Home / Warning signs
Signs of foundation problems
These signs are reasons to look closer, not a diagnosis. Many have other causes, including ordinary humidity, framing, or cosmetic settlement.
Drew Dudley, P.E., writing for the Greater Houston Builders Association about residential foundations in Montgomery County, lists drywall and brick cracks, sticking doors, and separation of walls from the ceiling among the distress signs that can appear when movement becomes excessive. Homeowners also often notice sloping floors, gaps around window or door frames, and cracked mortar in a stair-step pattern.
None of those signs, by itself, proves that a house needs piers. Interior sheetrock cracks can follow seasonal humidity. A sticking door can be a hinge or a swollen jamb. A hairline control joint in a slab is not the same thing as a structural failure. The useful next step is a documented inspection, not a guess from a photo alone.
Photograph one or two clear local examples you have permission to use: stair-step brick cracking, a tapered gap above a door, or a crack where a wall meets the ceiling.
Exterior signs people often notice
- Stair-step cracks in brick or masonry, especially near corners or garage openings
- Gaps where brick pulls away from a window or door frame
- A chimney, porch, or garage that appears to have dropped relative to the main house
- Soil that has pulled away from the slab, or soil and mulch piled against the foundation
- Water that stands along one side of the house after rain
Interior signs people often notice
- Doors or windows that stick, swing open, or show uneven gaps
- Cracks at corners of doorways or where walls meet ceilings
- Floors that feel sloped, or furniture that does not sit evenly
- Nail pops or ridging that appear along with other movement signs
Local conditions that can make signs more likely
On our soil and drainage page we summarize why Montgomery County homes see movement even when heavy clay is not everywhere: trees drying soil in summer, drainage on wooded or sloped lots, fill settlement under newer slabs, and Woodville clay pockets. The GHBA article also warns that trees and large bushes close to a foundation can pull moisture from the soil, and it suggests planting a tree about half its canopy diameter away from the foundation or considering a root barrier.
If your house is near large pines or oaks, on a cut-and-fill lot, or on a yard that drains toward the slab, mention that when you request an inspection. It does not replace measurements, but it helps the inspector know what to check.
This page is not an emergency service. If you smell gas, see active flooding inside the house, or believe a structure is unsafe, contact the appropriate emergency service or a licensed professional who can respond in person. MoCo Foundation Repair is not a contractor and does not provide emergency dispatch.