Epoxy Foundation Crack Repair in Montgomery, AL

Epoxy crack repair is a specialized technique for restoring the strength of cracked concrete

foundations. In Montgomery, Alabama, epoxy is often used for structural cracks that need to

be bonded back together. Understanding epoxy foundation crack repair helps you choose the

right material for your situation.

When to Use Epoxy vs. Polyurethane

Epoxy is a rigid, high‑strength adhesive. It is used when you need to restore the original

structural integrity of a concrete member—for example, a foundation wall that carries a heavy

load. Epoxy is not flexible, so it is best for cracks that are stable and not expected to move.

Polyurethane, by contrast, is flexible and waterproof but has low structural strength.

Montgomery Foundation Repair Co uses epoxy when a structural engineer specifies it or when

a crack is in a load‑bearing wall that has stopped moving.

The Epoxy Injection Process

The process is similar to polyurethane injection but with some differences. We clean and dry

the crack thoroughly (moisture interferes with epoxy bonding). We install injection ports and

seal the surface with epoxy paste. Then we inject a two‑part epoxy under pressure, starting at

the bottom port. The epoxy fills the crack and bonds to the concrete on both sides. After

curing (typically 24 hours), the repaired crack has a compressive strength greater than the

original concrete. Montgomery Foundation Repair Co uses commercial‑grade epoxies that

meet ASTM standards.

Benefits of Epoxy Injection

Epoxy injection offers several advantages. It restores the full tensile strength of the concrete,

preventing the crack from reopening under load. It is invisible when finished (can be painted or

ground flush). It does not shrink or crack over time. It can be used in below‑grade applications

(though it is not waterproof by itself; a waterproof coating may be needed). For cracks that are

purely structural and not leaking water, epoxy is often the best choice. Montgomery

Foundation Repair Co recommends epoxy for foundation beams, load‑bearing columns, and

other critical structural elements.

Limitations of Epoxy

Epoxy has limitations. It requires a dry crack; it cannot be used in actively wet conditions. It is

rigid, so if the foundation moves seasonally, the epoxy may crack again. It does not expand to

fill voids like polyurethane. And it is generally more expensive than polyurethane injection. For

most Montgomery foundation cracks, where seasonal movement is expected, polyurethane is

preferred. Montgomery Foundation Repair Co will explain the pros and cons for your specific

crack.

Frequently Asked Questions