Basement Wall Crack Repair in Southeastern Michigan

Crack injection and sealing is designed for poured concrete foundation walls only. Block, brick, and stone foundations require different repair methods, which our team can review during a free assessment.

In many cases, yes. Crack injection is a focused repair designed to seal individual foundation wall cracks that allow water intrusion. When leaks are isolated, this approach can be an effective solution without installing a full foundation system.

In most cases, crack repair is completed in a single day. Once on site, we install injection ports, inject the crack under high pressure, perform a water test to confirm the seal, remove the ports, and apply our signature patch — all in one visit.

Not always — the condition of the crack decides. Polyurethane is used on actively leaking or moisture-affected cracks; it reacts with water and expands to fill the void through the depth of the wall. Epoxy is used where the crack is dry and stable and structural bonding is what is needed. Most of the repairs we do are polyurethane, because most of the cracks we are called out to are wet.

In most cases the crack itself can be sealed by injection. What changes is whether injection is the whole repair. Where a wall has moved — a bowing wall, or a crack caused by significant structural movement — the crack can still be injected, but wall bracing is needed alongside it as part of a multi-part repair. Block foundation failure is addressed differently. We evaluate the wall and explain what the full repair involves.

When properly installed in suitable conditions, crack repair is designed to provide long-term protection against water intrusion. Performance depends on crack type, wall condition, and overall site conditions.

Not always. When water intrusion is coming from an isolated foundation wall crack, crack injection may be the appropriate repair. If conditions indicate a larger system is necessary, we will walk you through the reasons and available options.

Surface patches — hydraulic cement, mortar, or caulk — sit on the face of the wall. The crack runs through the full thickness of the concrete, so water still travels through it and works the patch loose from behind. A repair holds when the crack is filled through its full depth. High-pressure urethane injection does that on wet and wider cracks; epoxy injection does it on thinner, dry cracks. We repair previously patched cracks regularly.

A horizontal crack is different from a vertical or diagonal one. It usually indicates lateral soil pressure pushing against the wall rather than normal concrete movement, so the first question is not how to seal it — it is whether the wall has moved. We evaluate for wall movement before recommending injection. If the wall is moving, sealing the crack alone does not address the cause.