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Property stabilised after subsidence caused by oak tree

Challenge

Tree root activity from a mature oak caused soil shrinkage and subsidence, resulting in cracking and structural movement to a residential property.

Solution

Geobear used precision geopolymer injection to strengthen desiccated soils and re‑stabilise foundations, arresting movement without excavation or underpinning.

Subsidence halted

Foundation movement stabilised

No excavation required

Non‑intrusive solution

Rapid installation

Minimal disruption to homeowners

Background

A residential property experienced cracking and differential settlement linked to moisture loss in clay soils caused by a nearby mature oak tree.

Seasonal soil shrinkage had reduced bearing capacity beneath the foundations, leading to visible structural movement.

Challenge

Traditional underpinning would have involved significant excavation, extended programme time and disruption to occupants.

A lower‑impact solution was required to strengthen the affected soils and stabilise the structure while maintaining the integrity of the property.

Solution

Geobear delivered a targeted geopolymer injection programme beneath the affected foundations.

Expanding geopolymer resin was injected through small access points into weak and desiccated soils. The material filled voids, compacted loose ground and increased bearing capacity, arresting further settlement.

Injection was carefully monitored to ensure controlled ground improvement and structural stability.

Results

Movement was halted and the property stabilised without the need for traditional underpinning.

The solution provided a fast, cost‑effective and minimally disruptive alternative, restoring confidence in the property’s long‑term performance.

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