Most El Paso homes sit on concrete slab foundations, and the soil under that slab varies a lot across the region. That matters, because the most common cause of foundation movement here is not the concrete. It is what the soil does when its moisture changes.
El Paso Soil Is Not One Soil
In the Lower Valley, Ysleta, Socorro, Clint, and the Upper Valley, expansive clay soils are common. Clay swells when it gets wet and shrinks as it dries, so the slab above it can heave or settle unevenly.
In the foothills and parts of Northeast El Paso, caliche is more common. Caliche is a hard, cemented layer that water does not soak through easily, so moisture collects and concentrates near the slab perimeter instead of draining away.
Either way, the result can be differential movement: one part of the slab moves relative to the rest.
In the foothills and parts of Northeast El Paso, caliche is more common. Caliche is a hard, cemented layer that water does not soak through easily, so moisture collects and concentrates near the slab perimeter instead of draining away.
Either way, the result can be differential movement: one part of the slab moves relative to the rest.
What Makes It Worse
Soil moisture changes are usually driven by things around the house:
• Gutters, scuppers, and canales that dump water right next to the foundation.
• Yard grading that slopes toward the house instead of away from it.
• Irrigation and landscaping planted tight against the slab.
• Plumbing leaks under or next to the slab.
• Monsoon storms after long dry periods.
Many of these are fixable, and fixing drainage is often the first recommendation an engineer makes.
• Gutters, scuppers, and canales that dump water right next to the foundation.
• Yard grading that slopes toward the house instead of away from it.
• Irrigation and landscaping planted tight against the slab.
• Plumbing leaks under or next to the slab.
• Monsoon storms after long dry periods.
Many of these are fixable, and fixing drainage is often the first recommendation an engineer makes.
Signs Our Inspectors Look For
Foundation movement rarely shows up as one dramatic crack. We look at the pattern across the whole home:
• Doors and windows that stick, drag, or will not latch.
• Diagonal drywall cracks at the corners of doors and windows.
• Gaps between trim and ceilings or floors.
• Floors with a noticeable slope.
• Exterior stucco cracking that lines up with interior cracking.
None of these alone proves a foundation problem. Many El Paso homes show evidence of movement that happened years ago and has since stabilized.
• Doors and windows that stick, drag, or will not latch.
• Diagonal drywall cracks at the corners of doors and windows.
• Gaps between trim and ceilings or floors.
• Floors with a noticeable slope.
• Exterior stucco cracking that lines up with interior cracking.
None of these alone proves a foundation problem. Many El Paso homes show evidence of movement that happened years ago and has since stabilized.
When You Need an Engineer
A home inspector can document the signs, but determining whether movement is active, what is causing it, and whether repair is needed is a job for a licensed structural engineer. We recommend an engineer rather than a foundation repair company for that first opinion, because an engineer has no stake in selling a repair.
Inspector Pros offers a foundation evaluation with Noble Engineering. Our inspectors collect on-site data at the property, and Noble Engineering's engineers analyze it and provide a professional opinion on the foundation, including a repair plan if one is needed.
Inspector Pros offers a foundation evaluation with Noble Engineering. Our inspectors collect on-site data at the property, and Noble Engineering's engineers analyze it and provide a professional opinion on the foundation, including a repair plan if one is needed.
Buying a home in El Paso? Foundation observations are part of every buyer's inspection, and if we flag concerns, the engineer evaluation can be arranged during your option period. Call or text (915) 209-2332, or schedule online.