What causes damaged drains in Wandsworth
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.
Not every defect can be lined. A fully collapsed section, a badly deformed pipe or a run with no usable access still needs excavation, and we will say so rather than sell a repair that will not hold.
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.
What happens when we attend in Wandsworth
We check the pipe is a realistic candidate for lining before committing you to it.
- Survey the run on camera and locate the defect precisely
- Cut out root growth and clean the pipe wall so the liner can bond
- Install a resin liner sized to the pipe and cure it in place
- Reinstate any branch connections that the liner has covered
- Camera the finished repair and provide the footage as a record
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 reblocks repeatedly in the same place
- Roots visible in a chamber or pulled out during clearance
- A camera survey showing a cracked, displaced or deformed section
- Damp or subsidence concerns near a known drain run
- A drain running under a driveway, extension or mature planting
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
Lining work needs the pipe properly prepared, so we carry root-cutting and cleaning equipment as well as the liners and resin. We size the liner to the pipe rather than the other way round, and we carry the tooling to reinstate branch connections that the liner covers.
Every lining job finishes with a second camera run, and you get that footage as a record of the completed repair. We check that reinstated connections are flowing properly, and we are straightforward about the parts of the run we have not lined, because a repair to one section does not change the condition of the next.
What trenchless drain repairs cost in Wandsworth
Trenchless repairs are quoted after a CCTV survey, because the price depends on the length and condition of the section being lined. We confirm the figure before any work starts, so nothing changes once the engineer is on site in Wandsworth.
Areas we cover around Wandsworth
We cover SW18, SW11, SW12 and SW17 and the surrounding streets of Wandsworth, with engineers typically 60 to 90 minutes from the door. We work across Battersea, Clapham, Balham and Putney as well, so if the fault turns out to sit on a run shared with a neighbouring property we can deal with both ends of it.