Know which cracks matter and how they're fixed
Not every crack means your foundation is failing. Concrete shrinks as it cures, and hairline cracks are almost universal. The questions that matter are how wide, which direction, and whether it's growing.
Cracks that are usually cosmetic
- Hairline vertical cracks in a slab or foundation wall
- Thin cracks at drywall corners that don't reopen after patching
- Shrinkage cracks in garage floors
Cracks that deserve an evaluation
- Stair-step cracks in brick veneer or block
- Cracks wider than about 1/4 inch, or wider at one end than the other
- Horizontal cracks in a basement or stem wall
- Cracks that reopen after patching or come with sticking doors and sloping floors
How cracks are repaired
Epoxy injection bonds a crack structurally and suits non-moving cracks. Polyurethane injection stays flexible and is used mainly to stop water seepage. Brick and mortar repair (tuckpointing) restores veneer after the underlying movement has been stabilized. If movement is ongoing, sealing the crack alone just hides the symptom, so the pro should address the cause first, typically with piers or drainage.
Related Foundation Repair Topics
Frequently Asked Questions
How much does crack repair cost?
Injecting a single crack is often a few hundred dollars to around $800. Brick veneer repair varies with the area. Structural fixes for the underlying movement cost more.
Can I seal foundation cracks myself?
You can seal hairline cracks with DIY kits to keep out moisture and insects. Wide, growing, or stair-step cracks need a professional diagnosis first.
Ready for a straight answer? Tell us about your project and we'll connect you with a licensed, insured local pro for a written quote.
☎ (918) 205-6097 Request a Quote