Foundation crack repair is one of the smaller jobs we do, and the price reflects that, as long as the crack is just a leak. Once the wall is moving, it’s a different repair. These are the approximate ranges we work from. Your exact price comes after we see the wall, and the estimate is free.
Watch: How Epoxy Crack Injection Works
Read the video transcript
Got a leaking crack in your poured concrete basement wall? Here’s how crack injection seals it, all the way through. Poured walls crack as the concrete cures and the house settles. When the soil outside gets wet, water finds that crack and runs right through the wall into your basement. First, we clean the crack and set injection ports along it. Then we seal the surface with an epoxy paste, so the injection can’t leak back out. Next, we inject epoxy from the bottom port up. It fills the crack through the full thickness of the wall, until it shows at the next port. We use epoxy because it does more than plug the leak. It bonds the concrete back together, and cures harder than the concrete around it. Once it cures, the ports come off, and the crack is sealed from the inside, without digging up your yard.
Approximate prices
| Repair | Approximate price |
|---|---|
| Small or partial cracks, tie-rod holes | Approximately $500–$600 per small crack; $150 per tie-rod hole |
| Full-height vertical crack, injected | Approximately $1,500 ($2,000 if it was previously filled or repaired) per crack |
| Carbon fiber reinforcement | Approximately $1,500 – $2,500 |
| Steel I-beam wall braces | Approximately $1,500 per brace |
| Long horizontal cracks | Quoted after we see the wall |
What moves the price
- Length. A short crack by a window costs less than one that runs floor to ceiling.
- How many. Several cracks and tie-rod holes on one visit cost less each than separate trips.
- Access. A finished wall may need drywall opened first.
- Whether the wall is moving. A horizontal crack or a bowing wall needs reinforcement, not just injection.
Why horizontal cracks are quoted separately
A long horizontal crack in a block wall, sometimes 20 feet or more, usually needs the whole crack filled plus steel I-beam wall braces to keep the wall from bowing further. How many braces and how much filling depends on the length of the wall and how far it has moved, so we price it after we see it.
What a cheap patch costs you
A tube of hydraulic cement is cheap. It also seals only the surface, and it often leaks again the next time the clay outside gets saturated. Injection fills the crack through the full thickness of the wall.
When crack repair isn’t the whole answer
If water also comes in along the bottom of the wall, the crack isn’t the only path. That calls for an interior drain, approximately $6,000 to $8,000 for a 40-foot wall, depending on how much wall needs it. We’ll tell you if the crack is the only problem.
Permits and payment
Most crack injection doesn’t involve digging or plumbing, but rules vary by city. We give you one written price before we start, and financing is available through Enhancify. More on crack injection and our full cost guide.
We’re Mansour’s Innovations, a waterproofing, excavation and plumbing contractor in Shelby Township, in business since 2014 and working across Macomb, Oakland and Wayne counties. Call (586) 345-7292 for a free estimate. We book from 8 a.m. to 8 p.m. every day and answer emergency calls 24/7.
