★★★★★ 4.9/5 · 500+ reviews
The National Drainage Company clears blocked drains across Croydon 24/7, covering the CR postcodes from the town centre out to Purley, Coulsdon, Thornton Heath, South Norwood and Addiscombe. Pre-agreed prices, and engineers who reach most Croydon jobs fast.
As one of London's largest boroughs by population, Croydon spans everything from the high-density flats and commercial drainage of the town centre to the Victorian terraces of Addiscombe and Thornton Heath and the leafier suburban housing of Purley, Sanderstead and Coulsdon to the south. Central Croydon's older terraces run on clay drainage that's prone to root ingress and joint failure, while the hillier southern suburbs sit on chalk and clay where soakaways and surface water can be an issue. Its many converted flats and busy restaurants keep shared soil stacks and kitchen drains under constant pressure.
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 |
|---|---|
| Purley | ~14 min |
| Coulsdon | ~15 min |
| Sanderstead | ~8 min |
| Thornton Heath | ~17 min |
| South Norwood | ~18 min |
| Addiscombe | ~12 min |
| Norbury | ~8 min |
| Selsdon | ~11 min |
| Shirley | ~14 min |
| Kenley | ~8 min |
We aim to reach most jobs in Croydon 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 confirm before any work.
We agree a clear, pre-agreed price before any work begins.
Yes — we cover Croydon 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 Croydon.
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 Croydon — 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
