Water intrusion below grade is one of the most common and costly issues affecting commercial buildings, parking structures, hospitals, civic facilities, and multifamily developments. Because much of the waterproofing system is concealed, identifying the true source of leakage requires a systematic investigation.
Common Causes
Deficient Waterproofing Membranes
Improper installation, damaged membranes, or aging waterproofing materials can allow groundwater to enter the structure.
Hydrostatic Pressure
Groundwater creates continuous pressure against below-grade walls and slabs. Even small deficiencies can allow water to migrate into occupied spaces.
Utility Penetrations
Pipes, conduits, electrical systems, and mechanical penetrations are common leak locations if not properly detailed or maintained.
Construction Joints
Cold joints and expansion joints must be properly sealed to prevent water migration. Over time, movement and deterioration can compromise these critical connections.
Drainage Deficiencies
Blocked or undersized drainage systems increase hydrostatic pressure and reduce the effectiveness of the waterproofing system.
Why Professional Investigation Matters
Visible leaks rarely identify the true source of the problem. Water can travel significant distances through concrete, structural joints, utility corridors, and concealed building components before becoming visible.
ABB utilizes forensic investigations, leak mapping, controlled water testing, video scoping, moisture analysis, and destructive testing to identify root causes and develop long-term repair strategies that minimize risk and maximize durability.