Foundation Crack Repair & Basement Water Seepage Fix — Gainesville, GA
JDG Home Services sealed a 4.5-foot basement wall crack in Gainesville, GA using polyurethane crack injection, stopping active water seepage following a severe multi-day rain event. A 30-year-old home in Gainesville, GA experienced significant basement water seepage after the region saw nearly three days of severe, sustained rainfall. The homeowner contacted JDG Home Services after noticing active water intrusion through a crack in the basement wall.
The Challenge
Prolonged water exposure over the home's lifespan had gradually compromised a section of the basement wall, resulting in an approximately 4.5-foot crack. Following the extended rain event, water began actively seeping through the crack into the basement. The priority was rapid response: sealing the crack quickly to stop ongoing water intrusion and prevent further interior water damage.
Our Approach
Our team responded the same day the issue was reported. The crack was carefully widened slightly with an angle grinder to prepare it for proper sealing, then thoroughly cleaned using an air compressor and air hose, followed by vacuuming to remove all debris and dust before sealant application.
A polyurethane-based crack injection system was selected for this repair. Polyurethane is specifically designed to waterproof and seal non-structural concrete cracks that are actively leaking or exposed to moisture — it reacts with water on contact, expanding to fill the entire width of the crack and block seepage in real time, without requiring exterior excavation. It also cures into a flexible, rubber-like seal that can accommodate minor settling and normal concrete expansion or contraction over time, making it well suited to a crack of this type and size.
A Sikadur crack repair kit was used to fill and seal the crack completely. As a finishing step, polyurethane sealant was feathered approximately 2 inches on each side of the crack for added seal coverage.
At the homeowner's request, the drywall sections removed for access were left open rather than immediately closed, to allow continued monitoring of the area.
Materials & Equipment
The Results
The crack was fully sealed, stopping active water seepage and preventing further water intrusion into the basement. Because the issue was addressed quickly after it was identified, the homeowner avoided the more extensive water damage that typically results from delayed response. Gainesville, GA homeowners with older homes are especially susceptible to foundation wall cracking after extended periods of heavy rain — fast action when water intrusion is first noticed is critical to limiting damage.
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