★★★★★ 4.9/5 · 500+ reviews
The National Drainage Company clears blocked drains across Barnet 24/7, covering the EN, N and NW postcodes — High Barnet, Finchley, Hendon, Edgware and Golders Green. Pre-agreed prices, fast local response.
Barnet is one of London's largest and most suburban boroughs, and its drainage reflects its inter-war expansion: mile upon mile of 1930s semis with shared clay drainage, alongside the older Victorian housing of Finchley and New Barnet and the substantial homes of Hampstead Garden Suburb and Totteridge. The borough sits on heavy London clay that shifts and cracks pipes, and its many mature trees drive root ingress into ageing joints. Larger gardens on the northern fringes rely on soakaways that silt up over the years. Blocked shared drains, root damage and soakaway failures are the staple Barnet jobs.
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 |
|---|---|
| High Barnet | ~17 min |
| Finchley | ~15 min |
| Hendon | ~18 min |
| Edgware | ~18 min |
| Golders Green | ~6 min |
| Mill Hill | ~10 min |
| Totteridge | ~8 min |
| Whetstone | ~16 min |
| New Barnet | ~9 min |
| Friern Barnet | ~18 min |
We aim to reach most jobs in Barnet 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.
In Barnet it's often tree-root ingress into old clay joints — a CCTV survey finds it, and relining stops it recurring.
Yes — we cover Barnet 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 Barnet.
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 Barnet — 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
