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 · KT1, KT2
Basement waterproofing in Kingston upon Thames.
Kingston is built on the Thames floodplain, and large parts of it sit in Flood Zone 3. Groundwater is close to the surface year-round and rises with the river. Below-ground work here is demanding: the design must handle a permanently high table, and pump capacity and backup power are not optional extras.
Ground conditions
What sits beneath Kingston upon Thames.
| Postcodes | KT1, KT2 |
|---|---|
| Geology | Shepperton Gravel on the Thames floodplain |
| Groundwater | Very high — much of the area lies in Environment Agency Flood Zone 3 |
| Housing stock | Georgian and Victorian town houses, riverside apartments, 1930s suburbs |
For floodplain properties we specify pumped systems with high-water alarms and battery backup, and we will tell you honestly if a full conversion is not the right call for a given property.
Kingston upon Thames is one of the areas we cover across South London.
Specification
Choosing the right system for Kingston upon Thames.
BS 8102 sets out three forms of protection. Which one suits a property in Kingston upon Thames 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.
Request a quote
Book a survey in Kingston upon Thames.
Tell us what you're seeing and we'll tell you honestly whether it needs a full waterproofing system or something much simpler.