Types of Foundation Cracks in Montgomery Homes
Hairline shrinkage cracks in poured concrete walls are common and typically non-structural, though they can allow water seepage. Diagonal cracks running at 45-degree angles from corners of openings indicate differential settlement - the foundation is moving unevenly. Horizontal cracks in block or poured walls are the most serious - they indicate lateral soil pressure is overwhelming the wall's structural capacity. Vertical cracks wider than 1/4 inch usually require repair. We measure, photograph, and classify every crack as part of the inspection.
Crack Repair Methods We Use
Epoxy injection is used for structural cracks where the two faces of the crack must be bonded together. A two-part epoxy is injected under low pressure, filling the crack from the bottom up and restoring structural continuity. Polyurethane foam injection is used for cracks that are actively leaking - the foam expands to fill the crack and creates a waterproof seal, but does not bond the wall structurally. Carbon fiber straps or wall anchors are added when a crack indicates ongoing wall movement that must be stopped.
When Is a Crack an Emergency?
Horizontal cracks, or any crack accompanied by inward deflection of the wall, are structural emergencies requiring prompt professional evaluation. Stair-step cracks in block walls that are widening or showing displacement are also serious. Cracks that are growing - where new crack extensions appear over time - indicate active movement. If you are unsure, call us for an inspection; we will tell you honestly whether the crack requires immediate action or monitoring.
Frequently Asked Questions
Do you offer free estimates in Montgomery, AL?
Yes. Montgomery Foundation Repair Co provides free on-site inspections and written estimates throughout Montgomery County - no obligation. Call (334) 835-5928 to schedule.
Which wall cracks are structural emergencies?
Horizontal cracks in block or concrete walls are the most serious - they indicate soil pressure is overwhelming the wall. Stair-step cracks in brick veneer signal differential settlement. Cracks wider than 1/4 inch or cracks that are actively growing require immediate attention. Call (334) 835-5928 if you see these patterns.
What is the difference between epoxy and polyurethane crack injection?
Epoxy injection restores the structural strength of concrete - best for load-bearing cracks. Polyurethane foam expands to fill voids and create a waterproof seal - best for wet cracks and basement wall leaks. Montgomery Foundation Repair Co selects the appropriate material based on crack type, location, and moisture conditions.
Will repaired cracks reopen?
If the underlying cause (soil movement, drainage, settlement) is not addressed, cracks can reopen. Montgomery Foundation Repair Co always checks for ongoing movement before recommending crack injection. When piers or drainage corrections are needed first, we complete those repairs before sealing cracks to ensure lasting results.