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Subsidence repairs to West London council house

Challenge

Subsidence caused cracking and foundation movement at a council-owned house in West London, requiring rapid stabilisation without major excavation or disruption to tenants.

Solution

Geobear used precision geopolymer injection to strengthen underlying soils and stabilise foundations, delivering a fast, low‑disruption alternative to traditional underpinning.

Council house stabilised

Further settlement arrested

Weak soils strengthened

Improved bearing capacity

Tenants remained in residence

Minimal disruption throughout works

Background

Subsidence affecting residential properties can result from clay shrinkage, washout or long-term ground movement.

For local authorities, repair solutions must balance structural performance, cost control and tenant wellbeing.

Traditional underpinning can be invasive, requiring excavation and temporary relocation.

Challenge

Cracks and signs of differential settlement indicated instability beneath the property’s foundations.

The council required a solution that would stabilise the structure efficiently while keeping disruption, cost and programme duration to a minimum.

Solution

Geobear carried out a targeted geopolymer injection programme beneath the affected areas.

The expanding resin filled voids and increased soil stiffness, redistributing loads and halting further movement.

All works were carefully monitored in real time to ensure controlled stabilisation.

Results

The property was successfully stabilised without excavation or significant disturbance.

The council achieved a cost‑effective, long‑term solution while tenants remained safely in occupation.

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