Solid Foundation DFW assesses and repairs foundation cracks across the DFW Metroplex. Not every crack requires structural repair — but every crack deserves an expert assessment. In North Texas, where black gumbo clay drives foundation movement year-round, understanding which cracks are cosmetic and which indicate active structural settlement is critical to protecting your home. Call (972) 585-5576 for a free foundation crack assessment.
Types of Foundation Cracks in DFW Homes
Diagonal Cracks at Door and Window Corners
The most common foundation crack in DFW homes. These run at 45 degrees from the corners of door frames or window openings — interior drywall, exterior stucco, or brick mortar. They indicate differential settlement: the foundation has dropped unevenly, and the opening corners are the stress concentration points. Wide diagonal cracks (over 1/4 inch) or cracks with vertical displacement require structural evaluation.
Stair-Step Cracks in Brick Veneer
Stair-step cracks follow the mortar joints in brick veneer in a diagonal pattern. They’re a clear indicator of differential foundation settlement — the brick above the settled area has pulled away from the section that hasn’t moved. These are almost always structural and warrant a foundation inspection rather than cosmetic repair.
Horizontal Cracks in Block or Brick Walls
Horizontal cracks in masonry walls indicate lateral soil pressure — the soil outside the wall is pushing inward. This is one of the more serious crack patterns and can indicate structural wall failure in progress. Horizontal cracks warrant immediate evaluation, not deferred repair.
Vertical Cracks in Slab Edges
Vertical cracks in the exposed slab edge — visible at the foundation perimeter — can indicate either shrinkage (common, often cosmetic) or structural settlement (requires evaluation). Width, displacement, and whether the crack has grown since it first appeared are all factors in assessing severity.
Interior Slab Cracks
Cracks in interior concrete floors — visible in the garage slab, basement floor, or under removed carpet — range from cosmetic hairlines to active structural cracks. A crack that you can feel a lip or step across when running your hand over it indicates differential movement of the two slab sections.
Foundation Crack Repair Methods
Structural Crack Injection
For cracks where the underlying movement has stopped (stable cracks in an otherwise sound foundation), epoxy or polyurethane crack injection fills the crack and restores continuity to the concrete. Epoxy injection is rigid and appropriate for structural restoration; polyurethane is flexible and better for cracks where minor movement may continue.
Pier Installation First, Then Crack Repair
For cracks caused by active differential settlement, crack injection alone is not an appropriate repair — it will re-crack as the foundation continues to move. The correct sequence is: install piers to stop the settlement, lift the foundation back toward original grade, then repair the cosmetic crack damage. Attempting to seal a crack without addressing the underlying movement is a temporary fix at best.
Carbon Fiber Strap Wall Repair
For bowing or cracking foundation walls (more common in basement and block wall construction), carbon fiber straps anchor the wall to the floor system and prevent further lateral movement. This is used in addition to — not instead of — addressing the soil pressure or settlement causing the bowing.
Foundation Crack Repair Cost in DFW
Crack injection alone runs $500–$2,000 depending on crack count and length. If pier installation is required first, that adds $3,000–$10,000 depending on the scope of the structural repair. We always assess whether cracks are active or stable before recommending injection — there’s no point patching a crack that will re-open. Free inspection, written estimate, no obligation.
FAQ — Foundation Crack Repair
Are foundation cracks dangerous?
Most foundation cracks in DFW homes are symptoms of ongoing soil movement rather than immediate structural emergencies. Very few DFW homes are at risk of sudden structural failure from typical foundation cracking. However, active cracks that continue to grow over time indicate ongoing settlement that will get worse — and more expensive — if ignored. Horizontal cracks in basement or block walls warrant faster action than diagonal cracks in brick.
Can I repair foundation cracks myself?
DIY crack fillers and hydraulic cement are available, but they don’t address the underlying movement and typically re-crack within months. For cosmetic hairline cracks that are clearly stable (haven’t grown, no displacement), filling them is reasonable. For any crack with vertical offset, horizontal pattern, or evidence of growth, get a professional assessment before putting money into cosmetic repair.
Free Foundation Crack Assessment — DFW
Call (972) 585-5576 for a free crack assessment anywhere in the Metroplex. We’ll tell you which cracks need immediate attention and which ones are cosmetic — and give you a written repair recommendation with no obligation.