Foundation Crack Injection
Foundation Crack Injection & Repair
A crack in your foundation wall is never just a cosmetic issue. Every crack — no matter how small it appears — is an open invitation for water to enter your basement, weaken your foundation, and cause progressive structural damage that worsens with every rainfall. In Atlanta, where clay-heavy soil expands and contracts dramatically with changing moisture levels, foundation cracks are extremely common and grow larger over time if left untreated. Professional foundation crack injection is the only permanent solution that seals cracks completely from the inside out — stopping water intrusion at the exact point of entry and restoring the structural integrity of your foundation wall.
How Does Foundation Crack Injection Work?
Our certified technicians begin by thoroughly cleaning and preparing the crack to ensure proper adhesion of the injection material. We then install a series of injection ports along the length of the crack at precisely measured intervals. Using professional-grade polyurethane or epoxy injection material — depending on the type and severity of the crack — we inject the sealant under controlled pressure directly into the crack. The material flows through the entire depth of the crack from the interior surface all the way to the exterior of the wall, expanding to fill every void and gap before curing into a permanently waterproof seal. The result is a crack that is stronger than the surrounding concrete and completely impenetrable to water.
- Permanently seals cracks from the interior surface to the exterior of the wall
- Stops water intrusion at the exact point of entry — no more seepage
- Restores structural integrity to compromised foundation walls
- Fast & minimally invasive — no excavation or exterior digging required
One of the greatest advantages of professional crack injection is that it can be completed entirely from inside your basement — with no exterior excavation required. This means no digging up your yard, no landscape damage, and no days-long construction disruption. Most foundation crack injection projects are completed in just a few hours, and the injected material cures quickly to deliver immediate waterproofing protection. Every crack repair we complete is backed by our satisfaction guarantee — because we stand behind the quality and permanence of every repair we make.
Frequently Asked Questions
What is the difference between polyurethane and epoxy crack injection?
Polyurethane injection is used for active cracks where water is currently seeping through or where the foundation wall experiences slight movement. Polyurethane expands as it cures, filling every void completely and creating a flexible waterproof seal that accommodates minor wall movement without cracking again. Epoxy injection is used for structural cracks where restoring the load-bearing strength of the wall is the primary concern. Epoxy cures into an extremely hard, rigid bond that is actually stronger than the surrounding concrete. Our technicians assess each crack individually during your free inspection and determine which material is the right solution for your specific situation.
Can I seal a foundation crack myself with store-bought products?
Store-bought hydraulic cement and crack sealants are surface-level fixes that only address the visible face of the crack — they do not penetrate through the full depth of the foundation wall. As soil pressure, temperature changes, and moisture levels continue to shift, these surface patches fail quickly and the crack reopens — often wider than before. Professional crack injection fills the crack through its entire depth under controlled pressure, creating a permanent bond that surface patches simply cannot achieve. It is a more reliable, longer-lasting, and ultimately more cost-effective solution than repeated DIY repairs.
Will the crack come back after injection?
A professionally injected crack is permanently sealed and will not reopen at the same location. However, if the underlying cause of the cracking — such as hydrostatic pressure from poor drainage or soil movement — is not also addressed, new cracks may develop in other areas of your foundation over time. That is why we always assess your complete waterproofing situation during your free inspection and recommend a comprehensive protection plan that addresses both the immediate crack and the conditions that caused it — giving you lasting protection for your entire foundation.
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Don't wait until water damage gets worse. Reach out to Atlanta Waterproofing today and let our experts assess your property, recommend the right solution, and get your home protected — fast.
