Why Wandsworth properties get drainage faults
Wandsworth is classic late-Victorian terraced London, with long rows of family houses between the commons and a growing number of side-return and loft extensions. Those extensions frequently build over the original drain run, which changes how a blockage has to be reached.
You cannot repair what you cannot see. A camera survey turns a guess about the state of a drain into a record of exactly what is there, where it is and how bad it is.
The River Wandle and the Thames both influence surface water here, and gardens are often paved or decked over former soakaways. The typical fault is a partly collapsed or root-affected clay lateral at the rear, showing up as a slow gully and a smell after rain.
Our approach in Wandsworth
A survey is only useful if it is done systematically, so we cover the whole run rather than the first few metres.
- 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
Rear gardens are usually reached through the house, so we protect floors on the way through. Where an extension covers the drain run, a camera survey is the quickest way to find the fault without lifting slabs.
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 Wandsworth
- Root ingress at clay joints in rear gardens with mature planting
- Drain runs built over by side-return extensions, with no remaining access
- Rear gullies flooding where the garden has been paved or decked
Wandsworth is mostly family houses, and a large share of our work here follows an extension or a loft conversion. We also survey drains for buyers before exchange, which in this housing stock is money well spent.
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 Wandsworth
A CCTV drain survey is a fixed £300 plus VAT, including the footage and a written summary of what we found. You get a fixed price up front rather than an hourly rate, which means a difficult job in Wandsworth does not become an open-ended one.
Areas we cover around Wandsworth
Wandsworth sits within our core coverage, taking in SW18, SW11, SW12 and SW17 across Wandsworth. Average response is 75 minutes, and we operate in Battersea, Clapham, Balham and Putney too, which helps when a drain run is shared between properties in different streets.