foundation crack sealant

The Temptation of the Quick Fix A crack appears in your garage slab. Online, you see DIY injection kits promising professional results. The price is right, and the videos make it look simple. But here’s the painful truth many learn too late: a failed DIY grout job doesn’t just waste money—it can make the professional repair later more difficult and expensive by forcing them to drill out your hardened, misplaced material. The Reality Check: Can You Really Do This? Ask yourself these questions before buying that kit: Is the crack active or dormant? (Is water actively seeping, or is it dry?) What's the width and depth? Hairline surface cracks are DIY-friendly. Gaps wider than 1/4 inch or cracks that seem deep are not. Is there structural movement? Do the crack edges line up, or is one side higher? This indicates settling and requires a flexible professional-grade material. The Clear Divide: DIY vs. Pro Territory     Scenario DIY-Friendly Solution Professional Required Dry, hairline cracks (<1/16") Acrylic or low-viscosity epoxy in a caulk tube. — Damp, weeping cracks Risky. Moisture can prevent proper curing of many DIY materials. ✅ Pro with moisture-tolerant resins. Active, flowing leaks Forget it. You lack the pressure equipment and fast-set materials. ✅ Pro with hydro-active grouts and pumps. Multiple or networked cracks No. This indicates a larger issue. ✅ Pro for diagnosis and curtain grouting. The Smart Homeowner's Hybrid Approach You can still be involved and save money! Consider this: You Handle the Prep: Clean the crack thoroughly (a vital, time-consuming step). You Hire the Injection: Bring in a pro with the right equipment and material for the core sealing work. This cuts their labor time and your bill. You Handle the Finish: Apply the final cosmetic seal or coating yourself.