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Case Study: Reactive Clay

How we stopped severe structural cracking caused by reactive clay — avoiding costly underpinning repairs.

Reactive clay soil visible during excavation
Location Springfield Lakes
Problem Reactive Clay / Foundation Cracking
Result No further movement in 6 months

The Problem

The homeowner's property was experiencing significant cracking caused by reactive clay in the foundations absorbing moisture. A structural engineer was engaged to assess the property and took building levels that showed significant movement had occurred.

The Assessment

An engineering consultancy engaged to monitor the structural damage recommended moisture removal systems as the solution. The Hygro team identified a moisture seam at the rear of the property and proposed installing the seepage control system at the optimal location to intercept the water feeding the reactive clay.

The Installation

The installation was carried out quickly and efficiently. Brendan, the homeowner, noted how easy the process was to deal with, praising the team for getting the job done with minimal disruption to his property and daily life.

The Result

Following installation, the cracking stopped immediately as the system began drying out existing ground moisture. Within six months, subsequent level checks by the structural engineer showed no further structural movement whatsoever.

The homeowner credited the solution with avoiding expensive underpinning repairs while keeping costs within budget and stabilising the house structure for the long term.

"A structural engineer recommended water removal. Six months after pump installation, no further house movement was detected."

— Brendon S, Springfield Lakes