Coverage · Hammersmith, Fulham, Notting Hill, Holland Park, Kensington, Chelsea and Richmond
Basement waterproofing in West London.
West London is the classic basement conversion belt: street after street of Victorian terraces with an existing cellar that is half the footprint of the house and doing nothing. The opportunity is real. So is the water — this is the stretch of London where the gravels carry it, and where getting the drainage strategy wrong shows up quickly.
The ground across west London
What you are building into.
| Geology | River terrace gravels over London Clay, increasingly granular towards the Thames |
|---|---|
| Groundwater | This is the part of London where groundwater genuinely moves. The terrace gravels are permeable and hydraulically connected to the Thames, so levels respond to the river and to tides rather than sitting still. A tanked barrier that would be adequate on clay can be the wrong call a few streets closer to the water. |
| Housing stock | Victorian terraces with original cellars, Edwardian mansion blocks, larger villas towards Richmond |
| Planning | Hammersmith & Fulham and Richmond both scrutinise basement proposals, and Counter's Creek — the culverted watercourse running through the borough — has a documented history of surface and sewer flooding that a competent design has to account for. |
On permeable ground with a live connection to the river, we design for water we can manage rather than water we hope to exclude. That means Type C drained protection with the sump and pump sized to a calculated inflow, twin pumps, and battery backup — because on gravels a pump failure is not a slow leak, it is a flooded room. Where a property has a history of sewer flooding, the discharge arrangement matters as much as the membrane.
7 areas
Find your area.
Each area below has its own notes on the geology, the groundwater and the housing stock, because the right specification genuinely changes from one postcode to the next.
What we do
The systems we install.
Request a quote
Book a survey across west London.
Tell us what you're seeing and we'll tell you honestly whether it needs a full waterproofing system or something much simpler.