Type A
Barrier protection
Cementitious slurries and spray applied membranes, forming a continuous barrier against the structure. Suitable where the structure is sound and the head of water is modest and well understood.
Hand & spray applied
Areas we cover · W6, W12, W14
Basement waterproofing in Hammersmith.
Hammersmith runs from stiff London Clay in the north down to river terrace gravels at the Thames, and the difference matters enormously. Clay-bound properties can often take a well-detailed cementitious system; the gravel-bound streets near the river cannot, and need fully drained protection with pumped discharge.
Ground conditions
What sits beneath Hammersmith.
| Postcodes | W6, W12, W14 |
|---|---|
| Geology | London Clay with Kempton Park Gravel nearer the river |
| Groundwater | Rises sharply towards the Thames; gravels are tidally connected |
| Housing stock | Victorian terraces, mansion blocks, Edwardian family houses |
The Victorian terraces off the Fulham Palace Road and around Brackenbury Village are the classic conversion candidate here — narrow footprints that reward careful design of the drainage channel layout.
Hammersmith is one of the areas we cover across West London.
Specification
Choosing the right system for Hammersmith.
BS 8102 sets out three forms of protection. Which one suits a property in Hammersmith depends on the water head, the condition of the structure and what you intend to use the space for.
Type B
Structurally integral
Water-resistant concrete construction, with joints and service penetrations designed as part of the structure. Usually the route for new basements and underpinned extensions.
New build & underpinned structures
Type C
Drained protection
Cavity drain membrane, perimeter channel and a pumped discharge. It manages water instead of resisting it, and it remains maintainable — which is why it suits most conversions of existing cellars.
Maintainable · Grade 3 habitable
Nearby
We also work in these areas.
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Tell us what you're seeing and we'll tell you honestly whether it needs a full waterproofing system or something much simpler.