Why Kensington properties get drainage faults
Kensington is dominated by tall stucco-fronted terraces and garden-square townhouses, many of them converted into flats or maisonettes. Deep basement extensions are widespread, which puts kitchens, utility rooms and wet rooms below the level of the main drain.
Repeat blockages almost always have a physical cause. A survey identifies whether that is root ingress, a displaced joint, a partial collapse, a badly made connection or simply a run with too little fall.
Below-ground pipework here is often original clay laid in the nineteenth century, with shared laterals running under front gardens and lightwells. Where a basement has been dug out, waste usually relies on a pumped system, so a blockage downstream shows itself first as an alarm or a backing-up shower tray.
Our approach in Kensington
We survey with the end use in mind, whether that is a repair quote, a purchase decision or an insurance claim.
- Clear enough of the line to give the camera a usable view
- Run the camera through the full length of the affected drain
- Record the position and depth of any defect with a locator above ground
- Grade what we find, from minor wear to a defect needing repair
- Provide the footage and a written summary you can pass to an insurer, surveyor or builder
Front lightwells and vaults make inspection chambers harder to reach than in a standard terrace. We come prepared for restricted access and we take the same care with tiled steps and stone thresholds as we would with any listed frontage.
Signs it needs attention now
- A drain that blocks again within weeks of being cleared
- Unexplained damp, subsidence concerns or a sinkhole in the garden
- Buying a property with mature trees close to the drain run
- An insurer or managing agent asking for evidence of the pipe condition
- Planning an extension that will be built over an existing drain
What we see most often in Kensington
- Root ingress into original clay laterals under front gardens and garden squares
- Basement pump chambers filling because the discharge run is partly blocked
- Lightwell gullies overwhelmed by surface water during heavy rain
Most of our Kensington work is for owners of period houses and for the agents who manage converted flats within them. We also attend a steady number of newly excavated basements, where the drainage was installed recently but the run it discharges into was not.
Equipment and what happens afterwards
We survey with a self-levelling colour camera and an above-ground locator, which together tell us not just what a defect looks like but exactly where it is and how deep. That matters, because a repair quote based on a rough guess at position is a repair quote that changes once the ground is open.
You receive the footage along with a written summary describing each defect, its position and how serious it is. We write it so that a surveyor, an insurer or a builder can use it directly. Where a repair is needed we set out the realistic options, including the ones that do not involve excavation.
What cctv drain surveys cost in Kensington
A CCTV drain survey is a fixed £300 plus VAT, including the footage and a written summary of what we found. We confirm the figure before any work starts, so nothing changes once the engineer is on site in Kensington.
Areas we cover around Kensington
Kensington sits within our core coverage, taking in W8, SW7, W11 and W14 across Kensington and Chelsea. Average response is 75 minutes, and we operate in Chelsea, Hammersmith, Fulham and Westminster too, which helps when a drain run is shared between properties in different streets.