Epoxy vs. our Patch
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Epoxy Injection - Not for Residential Use


Epoxy injecting foundation cracks on residential foundations fails because epoxies harden, become brittle and eventually fail. Residential foundations expand and contract when temperatures change causing the bond between the hardened epoxy and the crack to fail.

Residential Foundation Repairs


Epoxy injection solutions have found some success on bridge and tunnel leaks because within these structures there is steel reinforcement within the concrete. This reinforcement, often placed as close as four inches apart, provides additional structural stability and minimizes the expansion and contraction allowing the hardened epoxy to adhere. Reinforcing steel is rarely present in a residential foundation. The foundation walls of a residential home are more susceptible to expansion and contraction which increases the chance that an epoxy injection will fail. Any hard brittle material used to seal a crack or void in a residential home will eventually re-crack.

Epoxy Injection Process


Many companies utilizing epoxy injection will drill numerous holes along the foundation wall near the crack to inject epoxy. The drilling introduces dirt, tar, dust, moisture and other contaminants into the cracks they are attempting to repair. The contaminants mix with the epoxy and prevent the epoxy from making a proper bond with the surface of the concrete. If the epoxy does not bond properly, the repair will fail and the additional holes drilled to inject the epoxy become additional areas that can leak or crack further.

Interior Flexible Patch System


Our Flexible Patch is a proven method in use for more than 40 years with great success. We open the crack from the top of the foundation wall to the footing beneath the cellar floor. We bond professional grade hydrolic water stopping cement to the cracked area, sealing all pores of the concrete as well as the sides of the crack. A plastic hardening epoxy is applied over the hydrolic cement. The application of hydrolic cement and epoxy is then sealed by a rubber membrane. These materials are only applied on interior foundation crack repairs. They allow the foundation to expand and contract in the area of the crack and are guaranteed to keep water out. Water leaks can be stopped while they are actively leaking.

Example Patch Installation


This interior foundation repair has been completed by exposing the cracked area with minimal sheetrock damage. Note: Sheetrock replacement is also available.