★★★★★ 4.9/5 · 500+ reviews
The National Drainage Company provides 24/7 drainage services across every London borough, from emergency drain unblocking in a Victorian terrace to CCTV surveys and no-dig repairs for managing agents. Our London-based engineers reach most jobs within the hour, at a pre-agreed price with — so a blocked drain in London gets cleared fast, day or night.
London's housing stock is unusually hard on drains. Vast areas of Victorian and Edwardian terraces still run on original clay pipework with mortar joints that crack and let roots in — and London's mature street trees (planes, limes and horse chestnuts) are relentless at finding those joints. The city's heavy clay subsoil shifts as it dries and wets, displacing pipes and cracking drains, and it drains slowly, which overwhelms older soakaways. Add the huge number of converted flats sharing single soil stacks — where fat, wet wipes and sanitary items cause constant blockages — and shared party-wall drainage between terraces, and you have a city that keeps drainage engineers busy. We work with all of it every day.
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 |
|---|---|
| Westminster & the City | ~8 min |
| Camden & Islington | ~12 min |
| Kensington & Chelsea | ~13 min |
| Hackney & Shoreditch | ~16 min |
| Lambeth & Southwark | ~15 min |
| Hammersmith & Fulham | ~18 min |
| Wandsworth & Clapham | ~20 min |
| Greenwich & Lewisham | ~22 min |
| Ealing & Acton | ~26 min |
| Barnet & Finchley | ~28 min |
| Croydon | ~34 min |
| Bromley | ~36 min |
You're normally responsible for the pipes within your property boundary. The shared lateral drain and public sewer beyond it are usually Thames Water's responsibility. If your blockage is on their network, we'll tell you so you don't pay for work that isn't yours.
We aim to reach most London jobs within 60 minutes, 24 hours a day.
Yes — shared drainage is very common in London terraces, and we'll help establish responsibility before any work.
We agree a clear, pre-agreed price before any work begins.
Yes — we cover London and the surrounding area around the clock, 365 days a year, for both emergency and planned drainage work.
We have engineers working across London and aim to reach most jobs within the hour. Call us and we'll confirm an arrival time for your postcode.
Yes — as well as homes we look after shops, restaurants, offices, care homes and property managers throughout London.
Yes — we're fully insured, our engineers are DBS-checked, and we hold recognised industry accreditations including Water Jetting Association membership.
The same team, kit and pre-agreed price promise wherever you are in 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
