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 · BR1, BR2
Basement waterproofing in Bromley.
The Blackheath Beds beneath much of Bromley are coarse pebble deposits that carry water readily, sitting over less permeable clays that hold it. The result is perched water arriving laterally at basement wall level rather than rising from below — which changes where the pressure is and how the system has to be drained.
Ground conditions
What sits beneath Bromley.
| Postcodes | BR1, BR2 |
|---|---|
| Geology | Blackheath Beds and Woolwich & Reading Beds over Chalk |
| Groundwater | Perched water within the pebble beds, over less permeable clay |
| Housing stock | Victorian and Edwardian villas, substantial 1930s detached housing |
Lateral ingress in Bromley is often mistaken for rising damp and treated with a chemical DPC, which does nothing. A proper survey identifies the actual water path first.
Bromley is one of the areas we cover across South London.
Specification
Choosing the right system for Bromley.
BS 8102 sets out three forms of protection. Which one suits a property in Bromley 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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Book a survey in Bromley.
Tell us what you're seeing and we'll tell you honestly whether it needs a full waterproofing system or something much simpler.