Foundation Crack Repair in Lansing, MI
Most cracks in a basement wall in Lansing, MI, Michigan's capital city and mostly in Ingham County, are thin and long since settled, and they matter chiefly as a way in for water. This page covers poured and block walls, injection and repointing, and permit questions, and a short form passes your description to a single independent contractor.
Not sure if we cover your area? Check now ↓
Basement Estimate Request
Takes about 30 seconds. One local contractor gets it and contacts you.
Your details go to one independent contractor who works around Lansing, MI, and that contractor gets in touch with you directly. See our Referral Marketing Disclosure.
Foundation Cracks, Explained
Poured concrete shrinks while it cures, so hairline cracks running straight up or at a slight slant are normal, even in a house built last decade. Plenty never let in a drop. When one does, the usual repair is injection: small ports are fixed along the line, and epoxy or polyurethane is pumped in until the crack is packed through the wall's full thickness.
Block walls behave differently. They usually crack along mortar joints in a stair-step pattern, and since the blocks are hollow, injected material can vanish into the cores. Repointing, which means raking out loose mortar and packing in fresh, is the more common answer, sometimes paired with an interior drain to relieve water building up behind the wall.
Census survey data puts about a quarter of Lansing's homes (24.5%) at 1939 or earlier. Brick and block walls of that age can shed mortar gradually over the decades instead of splitting, so the fix is often mortar work with a mix that suits old masonry.
Seasons add strain. Water trapped in a crack can freeze and pry it open a little more each winter. From fall into spring, the wet glacial ground around many mid-Michigan basements can hold water against the walls, pressing on them and feeding any gap it finds.
Have someone look soon at any crack that runs a long way sideways, that keeps getting wider or whose faces have shifted out of line, and at any wall bulging into the room. Marking each end in pencil with the date lets you see later whether anything has moved.
Common Situations
- Hairline poured-wall cracks. Injected from the basement side, with no digging outside.
- Stair-step block joints. Open joints are repointed, and a drain may ease the pressure from outside.
- Crumbling older mortar. Loose mortar is raked out and replaced with a compatible mix.
- Cracks that seep in spring. The crack is sealed, and downspout water and grading on that side are steered away.
- Horizontal crack or inward bow. Worth having a contractor look at soon.
What It Usually Costs
| Cost row | Figure | Source (year) |
|---|---|---|
| Typical basement waterproofing project | about $3,000 to $10,000 (average about $5,000) | Fixr national (2026) |
| Interior perimeter drain, per linear foot | $40 to $120 | Fixr national (2026) |
| Sump pump installation | $600 to $2,500 | Fixr national (2026) |
| Epoxy crack injection, per crack | $250 to $1,000 | Fixr national (2026) |
| Waterproof paint or sealant, per sq ft | $1 to $8 | Fixr national (2026) |
A single leaking crack usually falls on the injection row. Repointing, wall bracing and other structural repair have no sourced figure here, so ask for each as a separate line. The rows are Fixr's 2026 national ranges, with no Lansing or Michigan source behind them, and none is a price from this site. For a ballpark that includes cracks, try the cost calculator.
What Happens on Job Day
- Notes and photos. Length, width, which wall, and when it seeps; a ruler in each photo helps.
- The method on paper. A written agreement both sides sign, naming the method, the material (epoxy, polyurethane or mortar), the amount of work and the cost, plus warranty terms and whether they pass to a buyer.
- Permits before tools. Structural or excavation work may need a permit: at a Lansing address from the Building Safety Office (517-483-4355), elsewhere from the city or township. In Holt, MI, Delhi Township's Community Development Department (517-694-8281) wants a permit before any excavation. Ask who pulls each one.
- The repair itself. Ports are set and the resin cured, or joints are raked and refilled; injection seldom needs digging.
- Paying in steps. Never the whole amount before work starts, and written lien waivers before the last payment.
Why Start With One Request
A single description of the crack reaches one independent contractor, who can explain what it sees and put a price in writing. As a referral and advertising service only, this site never visits, measures or judges a wall, and it carries no Michigan license as a builder, maintenance and alteration contractor or plumber. Contractors may buy advertising here for a flat fee; homeowners pay nothing and get nothing in return.
Basement waterproofing is a licensed trade in Michigan, handled through LARA. The Attorney General suggests asking for the contractor's 10-digit license number; check it on LARA's online license lookup, and ask for insurance certificates and recent customers nearby.
Quick Answers
Can I patch a crack myself?
Hardware-store caulk or patching compound can hide a hairline crack, but it sits on the surface and rarely holds once wet soil pushes water from outside. Injection fills the crack through the wall, which is why it is the usual repair for one that leaks.
Epoxy or polyurethane: what's the difference?
Epoxy cures hard and bonds both faces of the crack, a fit where holding the concrete together matters. Polyurethane foams as it expands and stays a bit flexible, often chosen when the goal is simply to block water. Whichever is used, the signed agreement should name it.
Related Basement Work
When a crack is only one part of a damp basement, the pages on basement leak repair, basement drainage and full basement waterproofing cover the wider picture.
Ask About a Foundation Crack
Use the form to give the crack's length, the wall material and whether any water gets in. That goes to one independent contractor in the area as your request to be contacted, and the contractor may reach out to view the wall and price the repair itself. Going ahead is always your decision. Sending the short form is how to start.