Epoxy Crack Injection
STRUCTURAL EPOXY CRACK INJECTION
Epoxy crack injection bonds cracked concrete back together with a material stronger than the concrete itself. We inject two-part structural epoxy under low pressure into cracks in foundation walls, structural slabs, beams, columns, and retaining walls. The epoxy fills the full depth and width of the crack, restoring structural integrity and preventing water infiltration. Best for stable, non-moving structural cracks.
Starting at $300 per crack
Key Highlights
Structural bonding
epoxy bonds crack faces stronger than the original concrete.
Full-depth repair
pressure injection fills the complete crack from surface to far face.
Non-moving cracks
ideal for stable structural cracks that need strength restoration.
Why Choose Our Epoxy Crack Injection
Epoxy crack injection is the gold standard for structural crack repair in poured concrete. The two-part epoxy fills the full depth of the crack and cures to a material stronger than the concrete itself — effectively welding the crack back together. We assess each crack to confirm epoxy is appropriate (vs polyurethane for moving cracks) and inject to full depth for permanent repair.
Signs You Need Epoxy Crack Injection
1. Structural crack in foundation wall
A stable, non-leaking crack in a poured concrete wall that needs structural strength restored.
Our Process
Step 1 — Assessment
Evaluate crack width, depth, cause, and movement to confirm epoxy is the correct material.
Step 2 — Port installation
Install injection ports along the crack and seal the surface between ports.
Step 3 — Pressure injection
Inject two-part epoxy through ports from bottom to top until full depth is filled.
Brands & Materials
- Simpson Strong-Tie epoxy
- Emecole 121 structural epoxy
FAQs About Epoxy Crack Injection
How strong is epoxy crack injection?
Structural epoxy typically has compressive strength of 10,000-12,000 PSI — far exceeding the 3,000-4,000 PSI of the surrounding concrete. The repaired crack is literally stronger than the original concrete. The weak point becomes the concrete itself, not the epoxy repair.
Pricing
$300 - $800
per crack
*Varies by project scope and site conditions.
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When you choose Legacy General Services for your concrete project in the NW Metro, you're choosing a partner committed to quality that lasts.
Reputation
MN-registered contractor since 2023. Insured and trusted by homeowners across the NW Metro.
Transparency
No hidden fees or surprise charges. Upfront pricing on every concrete project—big or small, start to finish.
Efficiency
On-time scheduling and reliable project timelines. We show up when we say we will and finish on schedule.
Quality
Air-entrained, freeze-thaw resistant concrete built for Minnesota winters. Every pour meets or exceeds code.