Basement Crack Repair Grand Rapids MI | GR Dry Basement

Basement Crack Repair in Grand Rapids, MI

Cracks in poured concrete basement walls are the most common entry point for water. GR Dry Basement repairs leaking foundation cracks using epoxy or polyurethane injection — filling the crack from the inside to restore structural integrity and stop water infiltration permanently.

Epoxy vs. Polyurethane Injection

Epoxy injection is used for structural cracks — it bonds with the concrete and restores tensile strength. Polyurethane foam is used for actively leaking cracks — it expands to fill the crack even in wet conditions. We assess each crack and recommend the right method. Call (616) 512-2021 for a free inspection.

We provide this service across the metro — see our Rockford and Ada pages, or all services.

Structural Versus Non-Structural Cracks

Not every crack needs the same repair, and the difference matters because the prices are not close. A vertical or diagonal hairline in a poured wall is usually a shrinkage crack from the original cure — a water path, not a structural problem, and polyurethane injection seals it permanently in a few hours. A horizontal crack, particularly partway up a block wall, is a different animal: it means lateral soil pressure is bending the wall inward, and injecting it accomplishes nothing because the wall is still moving. That needs carbon fiber reinforcement or wall anchors first. We measure whether a crack has moved rather than judging by width alone, and we will tell you plainly which of the two you have.

Common Questions

Is a crack in my basement wall serious?

Direction is the first clue. Vertical and diagonal hairlines are common and usually not structural. Horizontal cracks indicate pressure and warrant attention. Anything wider than roughly a quarter inch, or that has visibly changed, is worth an inspection regardless of direction.

Epoxy or polyurethane?

Epoxy is rigid and bonds structurally, suited to a dry, stable crack. Polyurethane expands on contact with moisture and stays flexible, which suits an actively leaking crack and tolerates minor seasonal movement. Most wet basement cracks in this area get polyurethane.

Will the crack come back?

Not if the cause was addressed. A correctly injected non-structural crack stays sealed. A crack that reopens is telling you the wall is still moving, which means the original diagnosis was wrong.