Groundworks in Leatherhead
We are your neighbors in Fetcham. We deliver heavy civil engineering, piling, and basement construction to KT22 with zero travel costs and maximum efficiency.
Engineered for Leatherhead
From the clay soil of North Leatherhead to the chalk of the Downs. We own the machinery and the expertise to handle complex local builds.
The Clay/Chalk Boundary
Leatherhead sits on a complex geological boundary. North of the town center (towards Oxshott), the heavy London Clay expands and contracts with the seasons, causing subsidence in standard strip foundations.
To the south (Givons Grove), the substrate shifts to Chalk, which offers great load-bearing but comes with the risk of dissolution features (swallow holes). We adapt our engineering to the exact soil make-up of your postcode.
We utilize heave-protected piling and reinforced ring beams to isolate the structure from soil movement, ensuring longevity in clay-rich zones.
We implement deep-bore soakaways for efficient drainage compliant with Mole Valley SUDS, preventing ground instability.
River Mole Flood Defense
The River Mole is known for being "flashy"—levels rise rapidly after heavy rainfall. Properties in Fetcham Grove, Thorncroft Drive, and near the river bridge are particularly susceptible. We specialize in Property Level Flood Resilience (PLFR) for new builds and extensions.
Attenuation
Large capacity storm water tanks installed onsite to hold excess water and release it slowly into the mains, preventing system overwhelm.
Non-Return Valves
Essential automated valves that prevent sewer back-surge entering your property during high-pressure flood events.
Type B Waterproofing
High-grade waterproof concrete construction for basements and foundations located in high water table zones.
Planning Resources
Mole Valley Planning
Check local constraints, conservation areas, and submit applications for KT22.
Visit Portal →Thames Water
Developer services for build-over agreements and sewer connections.
Developer Services →