★★★★★ 4.9/5 · 500+ reviews
The National Drainage Company clears blocked drains across South London 24/7 — covering the SE and SW postcodes and the boroughs of Wandsworth, Lambeth, Southwark, Lewisham, Croydon, Bromley, Merton and Sutton. Pre-agreed prices, and fast local response.
South London spans dense Victorian terraces and leafy suburbs, and the drainage problems change with them. The terraced streets around Clapham, Balham, Tooting, Brixton and Peckham run on ageing clay pipes shared between homes, prone to root ingress from the plane trees ringing Clapham and Wandsworth Commons. Low-lying areas near the Thames and its buried rivers can suffer surface-water and soakaway problems in heavy rain, while the outer suburbs of Croydon, Bromley and Sutton mix Victorian, inter-war and post-war housing on clay ground that drains slowly. Converted flats across the inner boroughs add constant shared-soil-stack blockages.
Older terraces run on clay pipework that tree roots find and split at the joints.
Kitchens and food businesses keep drains under constant FOG pressure.
Converted flats share soil stacks, so one wipe can back up several homes.
Older surface drains and gullies silt up and struggle in heavy rain.
"Fast, tidy and did exactly what they said. Couldn't fault them."
"Showed me the problem on camera and sorted it properly. No hard sell."
"Reliable and professional — one call and it was handled."
| Area | Approx. response |
|---|---|
| Wandsworth | ~18 min |
| Clapham | ~15 min |
| Balham | ~19 min |
| Tooting | ~15 min |
| Brixton | ~19 min |
| Streatham | ~11 min |
| Peckham | ~8 min |
| Dulwich | ~9 min |
| Croydon | ~9 min |
| Bromley | ~18 min |
| Lewisham | ~16 min |
| Catford | ~14 min |
| Wimbledon | ~8 min |
| Sutton | ~19 min |
We aim to reach most jobs in South London within 60 minutes, 24/7. Call us and we'll confirm an arrival time for your postcode.
You're normally responsible for pipes within your boundary; the shared sewer beyond is usually Thames Water's. We'll check before any work.
Yes — common near the commons and low-lying areas; we diagnose and repair failed soakaways as well as clearing blocked drains.
Yes — we cover South London and the surrounding area around the clock, 365 days a year, for both emergency and planned drainage work.
Yes — as well as homes we look after shops, restaurants, offices, care homes and property managers throughout South London.
Yes — we're fully insured, our engineers are DBS-checked, and we hold recognised industry accreditations including Water Jetting Association membership.
We confirm the drain is flowing freely before we leave, and if a blockage returns because we didn't clear it properly, we'll come back and put it right.
Wherever possible we use no-dig methods such as relining and localised patch repairs, so there's little or no excavation.
The same team, kit and pre-agreed price promise wherever you are in South London — jetting, CCTV and no-dig repair carried on every van.
24/7 local response, pre-agreed price before any work, fully insured.
📞 Call now: 0800 246 5157
