Foundation Crack Repair in Pittsburgh, PA
Foundation crack repair is critical for any Pittsburgh homeowner who has noticed cracking in their basement walls or floor. Cracks are not just cosmetic — they are active water entry points and, in some cases, early signs of structural movement. At Pittsburgh Basement Pros, we assess every crack properly before recommending a fix, using epoxy and polyurethane injection methods that deliver lasting results on both poured concrete and block foundations.
Why Pittsburgh Foundations Crack
The Pittsburgh region’s geology and climate create conditions that are particularly hard on foundations. Heavy clay soils expand when wet and contract when dry, exerting lateral pressure against basement walls year-round. Freeze-thaw cycles during winter months cause the ground to heave and settle repeatedly. Combined with the natural settling that occurs in older homes, these forces produce cracks in even well-built foundations over time. The key is identifying which cracks are structural concerns and which are manageable water entry points — and treating each accordingly.
Types of Foundation Cracks We Repair
Vertical cracks — The most common type in poured concrete foundations. Usually caused by shrinkage during curing or minor settling. Typically not a structural concern but an active water entry point that requires sealing.
Diagonal cracks — Often found in corners or running at 45-degree angles. Can indicate differential settling and warrant closer inspection before treatment.
Horizontal cracks — The most serious type, typically found in block foundations. Caused by lateral soil pressure and can indicate structural compromise. These require prompt attention and may need more than crack injection alone.
Floor cracks — Cracks in the basement floor slab allow groundwater to seep up from below. Sealed as part of a comprehensive waterproofing system or as a standalone repair.
Our Repair Methods
Epoxy injection — Used for structural cracks where restoring tensile strength is important. Epoxy bonds tightly to concrete and, once cured, is stronger than the surrounding material. Best suited to dry or dormant cracks.
Polyurethane foam injection — Used for actively leaking cracks. The foam expands on contact with moisture, filling the crack completely and creating a flexible, waterproof seal. Ideal for cracks that experience movement or ongoing water infiltration.
Foundation Crack Repair Cost in Pittsburgh
Most crack injection repairs run between $500 and $1,500 per crack, depending on the length, width, and method required. Horizontal cracks requiring additional structural reinforcement are quoted separately after inspection. All pricing is confirmed in writing before work begins.
Frequently Asked Questions
Can I seal a foundation crack myself?
DIY crack sealants are available but typically only address the surface. Water will find another path in, and the underlying cause remains untreated. Professional injection fills the full depth of the crack and bonds to the concrete permanently.
How do I know if a crack is structural?
Horizontal cracks, cracks wider than a quarter inch, stair-step cracks in block walls, and cracks with displacement on either side all warrant professional assessment. If in doubt, call us — a free inspection costs nothing and gives you a clear picture.
Will the crack come back?
Epoxy and polyurethane injections on stable foundations are typically permanent. If the underlying soil movement or water pressure is not addressed, new cracks may form nearby. We assess the full picture during inspection and flag any contributing factors.
Related Services
Areas We Serve
We carry out foundation crack repair throughout Pittsburgh and surrounding communities, including North Hills, Mt. Lebanon, Bethel Park, Monroeville, and Cranberry Township.
For further reading on basement water issues in Pennsylvania, see Penn State Extension’s Stormwater Flood Control resource.