Interior Leak Repair Options
I have a small but steady leak coming through a hairline crack in my basement wall every time it rains heavily. It's not flooding, but it's causing some staining and dampness. Can this be fixed without digging up the outside of the house?
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Hairline cracks are very common in Toronto basements because of soil movement and temperature changes, and they can often be repaired effectively from the inside. Professionals use high-pressure injection techniques with polyurethane or epoxy that expands to fill the crack completely and stops water from coming through, even under pressure. It's a quick job, usually done in a day, with minimal mess and no need to excavate your yard. This approach works well for non-structural leaks and can last for years. For more details on the process and what to expect, this Toronto company has a helpful page https://leaquida.ca/interior-waterproofing-toronto/leak-repair/ that explains the different methods they use. They also offer free inspections to assess if injection is enough or if additional drainage is needed. Fixing it early prevents mold, efflorescence, or worsening damage, and it's often much cheaper than waiting until the problem grows. Highly recommend getting it looked at soon basement leaks rarely fix themselves.