Foundation Crack Repair in Grand Rapids, MI
A leaking foundation crack is one of the most common reasons Grand Rapids homeowners end up with water in the basement. The fix is straightforward when caught early: a urethane or epoxy injection that fills the crack completely from the inside face of the wall to the outside face, permanently sealing it against water. We repair cracks in poured concrete and block walls across Grand Rapids and West Michigan, usually in a single visit.
How Crack Injection Works
The repair starts with cleaning the crack and the surrounding wall surface. Crews then drill small injection ports along the length of the crack, set them in place with a fast-setting surface paste that also seals the visible face of the crack, and let the paste cure. Once the surface is sealed, the repair material is injected through the ports under pressure starting at the lowest port and working upward. The material flows into the crack and fills it from the inside face of the wall to the outside face. Once the material has cured, the surface paste and ports come off, leaving a small visible stripe along the wall where the repair was done.
Urethane Versus Epoxy
The choice between urethane and epoxy depends on what is happening with the crack. Urethane is a flexible material that expands as it reacts with moisture. It works well on active cracks that may still flex slightly with seasonal soil changes, and it is the standard choice for most leaking shrinkage cracks. Epoxy is a rigid, structural material that bonds the two faces of the crack together so the wall acts as one piece. Epoxy is the right choice when the crack is non-moving and the wall needs to be made structurally continuous again, such as a crack that runs through a load-bearing section of the wall.
Common Crack Types in Grand Rapids Homes
Vertical shrinkage cracks are the most common pattern in poured concrete walls. They form as the concrete cures and are usually narrow at the bottom and slightly wider at the top. Diagonal cracks coming out of corners are often related to settlement or soil movement. Horizontal cracks, especially mid-wall horizontal cracks, are usually serious and may indicate active wall movement from soil pressure. Stair-step cracks in block walls follow the mortar joints and almost always need attention. We diagnose what type of crack you have before recommending a fix.
When Crack Injection Is Not Enough
Injection seals water. It does not address wall movement. If a horizontal crack is widening, if a wall is bowing inward, or if cracks are appearing in new locations every season, the foundation needs structural reinforcement. Carbon fiber, wall anchors, and helical tiebacks all address active wall movement. We will tell you straight if your crack is structural and recommend the right repair instead of just selling you an injection.
Cost and Time
A single crack injection is typically a half-day job and is by far the least expensive basement waterproofing service we offer. Cost depends on crack length, accessibility, and whether multiple cracks need attention. For homes with many cracks across multiple walls, an interior drainage system may make more sense than injecting them one by one.
Related Services
- Full basement waterproofing for multi-point leaks
- Basement wall repair for bowing or moving walls
- Interior drainage systems
Service Areas
We repair foundation cracks in Grandville, Wyoming, Rockford, and across the Grand Rapids metro.