Home › Crack repair
Foundation crack repair for Troy's poured-concrete basements
Updated October 19, 2026 · referral service, not a contractor
Troy is poured-wall country, so crack injection is the bread-and-butter repair here. A technician seals the crack face, sets ports, and injects polyurethane (flexible, swells on contact with water) or epoxy (rigid, structural). Done from inside in two to four hours, no digging. The judgment call is which cracks are structural.
Shrinkage cracks vs. movement cracks
| Sign | Means | Action |
|---|---|---|
| Thin, vertical, roughly uniform width, often below a window or at mid-wall | Concrete shrank as it cured (normal in 1970s–90s pours) | Inject if it leaks; otherwise monitor |
| Diagonal from a corner of a window or beam pocket | Stress concentration; usually still shrinkage | Inject; check the lintel |
| Wider at top than bottom, or edges offset | Differential settlement | Have the cause checked before injecting |
| Horizontal crack, wall leaning in | Soil/frost pressure; rare in poured walls but serious | Structural repair (carbon fiber or beams), relieve exterior water |
| Floor crack with water or heave | Hydrostatic pressure | Drain tile and sump, not crack filler |
Why Troy's clay matters even for poured walls
Brookston, Colwood and Shebeon soils swell when saturated. A poured wall handles that pressure far better than block, but the pressure still drives water through any crack it finds, and it's why an injected crack that was dry for ten years opens up again after a wet year. Polyurethane's flexibility is the reason contractors prefer it for leaking (as opposed to structural) cracks here.
Tie-rod holes and pipe penetrations
The round weeps in a grid are form tie holes from the original pour, plugged with mortar or tar that fails after 30–40 years. Each is drilled out and sealed with hydraulic cement and a polyurethane plug. Gas, water and electrical penetrations are sealed the same way.
Cost
HomeGuide national average: $250–$800 per injected crack; multi-crack jobs are priced per crack with a trip minimum. Structural stabilization of a bowing wall runs $2,000–$12,000+. Troy quotes come from the contractor.
Free estimate from a Troy pro
One independent contractor who works in Troy gets your request, calls you, and gives a free written estimate. No charge for the introduction, no obligation afterward.
Sources
- USDA NRCS Soil Data Access, map unit components at Long Lake/Coolidge (Northfield Hills), Rochester/Square Lake (Sylvan Glen), Wattles/John R (Emerald Lakes) and Big Beaver/Rochester, queried Oct 19 2026 — https://sdmdataaccess.sc.egov.usda.gov/
- HomeGuide, foundation crack repair cost (national averages) — https://homeguide.com/costs/foundation-crack-repair-cost