★★★★★ 4.9/5 · 500+ reviews
The National Drainage Company clears blocked drains across North London 24/7 — covering the N postcodes and the boroughs of Islington, Camden, Haringey, Barnet, Enfield, Hackney and Harrow. Pre-agreed prices, and engineers who reach most North London jobs within the hour.
North London is dominated by Victorian and Edwardian terraces on original clay drainage, much of it shared between neighbouring properties — a frequent source of disputes and blockages. The area's leafy, hilly districts around Highgate, Hampstead, Muswell Hill and Crouch End have mature trees whose roots invade old pipe joints, while the dense terraces of Islington, Camden and Holloway see heavy use of shared soil stacks in converted flats, where fat and wet wipes are the usual culprits. Further out, the suburban stock of Barnet and Enfield mixes inter-war and post-war housing with soakaway drainage that struggles in London's clay.
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 |
|---|---|
| Islington | ~15 min |
| Camden | ~18 min |
| Highgate | ~17 min |
| Hampstead | ~13 min |
| Crouch End | ~15 min |
| Muswell Hill | ~11 min |
| Finchley | ~7 min |
| Barnet | ~12 min |
| Enfield | ~16 min |
| Tottenham | ~6 min |
| Wood Green | ~6 min |
| Holloway | ~16 min |
| Archway | ~7 min |
We aim to reach most jobs in North 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. Many North London terraces share drainage with neighbours — we help establish responsibility first.
We agree a clear, pre-agreed price before any work begins.
Yes — we cover North 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 North 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 North 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
