TL;DR
Crack injection is the repair of a foundation wall crack by pumping resin into it under pressure through surface ports until the material fills the full depth of the wall. Two chemistries dominate: rigid epoxy that structurally welds the concrete back together, and expanding polyurethane that stays flexible and stops water in cracks that still move slightly.
What it means
Crack injection is the repair of a foundation wall crack by pumping resin into it under pressure through surface ports until the material fills the full depth of the wall. Two chemistries dominate: rigid epoxy that structurally welds the concrete back together, and expanding polyurethane that stays flexible and stops water in cracks that still move slightly. Done from inside the basement with no excavation, it suits poured-concrete walls; block walls, with their hollow cores, generally need different waterproofing approaches.
Where it sits in the glossary
Crack injection is part of the Certifications group inside the ProFix Directory glossary. Browse every term in this category from the glossary index.
Why Ohio homeowners should know it
This is a term Ohio homeowners encounter when reading contractor quotes, hiring paperwork, or inspection reports. Understanding it well enough to ask one good follow-up question is usually all the protection a homeowner needs.
ProFix Directory keeps definitions short on the index page and saves the longer context — Ohio-specific rules, where the term comes from, and which ProFix tools touch it — for these per-term pages so the term is easy to cite and easy to share.
ProFix tools that touch this term
See also
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