Your Local Basement Waterproofing Experts in DeKalb

For trusted Basement Waterproofing in DeKalb, DeKalb residents call Three Brothers Waterproofing first. DeKalb is a mid-sized city in DeKalb County, and its humid continental climate shapes the work we do here.

From Cortland to Sycamore, our teams serve DeKalb and the wider northeast Illinois, handling the basement waterproofing problems that come with DeKalb County's warm, humid summers and year-round precipitation. We understand the local homes and route efficiently across all 1 ZIP codes.

Every DeKalb job is backed by a solid workmanship guarantee and a flat-rate quote you sign off on before we start - no surprises. That's how DeKalb homeowners recommend Three Brothers Waterproofing.