Basement Crack Leaking Again After a Previous Repair?
You had the crack fixed — or the previous owner did, or you tried a DIY kit — and now it's leaking again. This is one of the most common calls we get in Metro Detroit, and the good news is that most failed crack repairs in poured concrete walls can be permanently fixed.
The Crack Team specializes in one thing: full-depth, pressurized injection repair of poured concrete foundation wall cracks — no digging, no excavation. Send us a photo of the crack and the old repair, and we'll tell you what went wrong and what it takes to fix it.
Get a Free Estimate Text a Photo: (313) 535-7998 Call Now: (313) 535-7998Why Basement Crack Repairs Fail
A crack in a poured concrete wall runs through the full thickness of the wall — typically 6 inches of concrete, sometimes more — from the inside face all the way to the soil outside. Water enters from the outside. A repair only works if it seals that entire path. Most failed repairs we see come down to one of these:
Surface-only patches
Hydraulic cement, caulk, and waterproofing paint only cover the inside face of the crack. Water still travels through the wall, pushes against the patch, and eventually finds a way around or behind it. Rigid patches like hydraulic cement also can't move with the wall as it expands and contracts through Michigan's seasons, so they tend to pop loose.
DIY injection kits
DIY kits can look like a professional repair from the inside, with the same kind of ports along the crack. The problem is usually what's missing: proper crack preparation, the right material for the crack, and the experience to know when the crack is truly filled. If the material doesn't penetrate the full depth of the wall, water keeps running through the unfilled portion and comes back out around the repair.
Injection that didn't fill the full depth
Even a professional injection can fail if the crack wasn't properly cleaned, the ports were spaced too far apart, or the injection was stopped before the material filled the crack through the full wall thickness.
The leak wasn't actually the crack
Sometimes the crack was repaired correctly, but the water is coming from somewhere nearby — a form tie ("rod") hole, a window well, a pipe penetration, or water running down the wall from higher up and pooling at the floor. Pinpointing the real entry point is part of every estimate we do.
What Kind of Repair Do You Have?
If you bought the house with a repair already in place, here's how to tell what was done:
- Gray cement smeared over the crack — likely hydraulic cement or patching compound
- Clear or colored rubbery bead — caulk or sealant
- Paint or coating over the whole wall — waterproofing paint
- A raised paste line with small plastic ports every several inches — an injection repair (professional or DIY kit)
Take a clear photo of it — it helps us tell you exactly what we're dealing with before we ever come out.
Can a Failed Crack Repair Be Fixed?
In most poured concrete walls, yes. We remove the failed surface material where needed, clean the crack so the resin can bond, install new injection ports, and inject a low-viscosity resin until it fills the crack through the entire wall thickness. When it's done right, the crack itself is sealed — not just covered.
No digging, no excavation, and no interior drain system required. Learn more about how our basement crack repair process works, or read our specialist's explanation of why basement cracks leak.
Please note: we repair poured concrete foundation walls only. If your basement walls are cinder block, brick, or stone, we're not the right fit — and we'll tell you that up front.
Check the Old Warranty First
Before you pay anyone to redo a repair, find out whether the original repair came with a warranty — and whether it transfers to you if you bought the house. If it's still valid, call that company first. It may be covered.
If the warranty expired, didn't transfer, or the company is no longer in business, we can help. Every poured concrete crack repair we complete is backed by our lifetime-of-the-structure Happy Crack Warranty — and it transfers to the next owner at no charge if you sell.
Get a Fast Estimate — No Visit Needed
Text or upload photos and we'll get back to you with pricing. Helpful to include:
- The full crack — top to bottom, from a few feet back
- A close-up of the old repair — so we can see what was used
- Where the water shows up — on the wall, at the floor, or both
- When it leaks — every rain, only heavy storms, or spring snowmelt
Request your free estimate or text photos to (313) 535-7998.
Frequently Asked Questions
Why is my crack leaking again after it was repaired?
Most often the original repair only sealed the inside surface of the crack, or the injection didn't fill the crack through the full thickness of the wall. Water still enters from the outside and works its way back through.
Can you inject a crack that was already injected?
Usually, yes. The failed surface material is removed where needed, the crack is cleaned, and new ports are installed so the crack can be injected through the full wall thickness.
My DIY crack repair kit didn't work. Did I make it worse?
Generally not. A failed DIY repair can typically be redone properly. Send us a photo and we'll let you know what we see.
Is hydraulic cement a permanent fix for a leaking basement crack?
Not usually. Hydraulic cement covers the inside of the crack but doesn't fill it through the wall, and it's rigid, so it can crack loose as the wall moves with the seasons.
Do I need excavation or a drain system to fix a failed crack repair?
For a leaking crack in a poured concrete wall, typically no. Full-depth injection seals the crack from inside the basement without digging.
Fixing Failed Crack Repairs Across Metro Detroit
Based in Livonia, we fix failed basement crack repairs in poured concrete foundations throughout Metro Detroit. View our full service area to see all the communities we serve.
Stop the Leak for Good
Get a Free Estimate Text a Photo: (313) 535-7998 Call Now: (313) 535-7998No pressure. No gimmicks. Just honest crack repair.