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Drain Unblocker London
Professional drainage engineers attending a blocked drain in London

Outdoor Drain Blockages in London

Clear blockages in outdoor drains, gullies, soakaways and manholes across London properties.

  • All 32 London boroughs covered
  • Drain unblocking, jetting and repairs
  • Specialists in Victorian clay drainage
  • CCTV drain surveys and reports
32 Boroughs covered
CCTV Drain surveys
Jetting High-pressure drain cleaning

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Outdoor Drain Blockages across London

Outdoor drains carry rain and waste water away from your London property. They include gullies, channels, soakaways and inspection chambers. Leaf fall, soil wash-in and roots cause most blockages, because London streets and gardens hold so many mature trees.

Plane and lime tree roots push into pipe joints over many years. The bore narrows slowly, yet the first sign is usually a flooded patio. We clear outdoor drains with high-pressure jetting. Where needed, we also open the inspection chambers by hand.

In older boroughs, surface water and foul water often share one run. As a result, a single garden gully can back up the whole line. We lift the nearest manhole first to find the real blockage. That way we never jet a pipe that is already clear.

Every job ends with a flow test from the highest reachable point. You then know the system runs freely before we leave site.

Prevention is cheaper than repair. While you wait for the visit, keep leaves and debris off gully grates. After the visit, we advise on drain guards and root control. Both help because they stop the cause rather than the symptom.

Signs you need outdoor drain blockages help

  • ✓ Water pooling on patios, driveways, or in the garden during rain
  • ✓ Overflow from external gullies or inspection chamber covers
  • ✓ Strong drain smell from external drains
  • ✓ Slow drainage from external channels or French drains
  • ✓ Gurgling sounds from outdoor drains

Our process

  1. 1. Inspect all external drain access points — gullies, inspection chambers, soakaways
  2. 2. Locate the blockage using drain rods or CCTV camera where required
  3. 3. Clear the blockage by high-pressure jetting or manual rodding
  4. 4. Test all external drainage is flowing freely
  5. 5. Advise on any preventive measures — drain guards, root management

Pricing guide

Prices vary because every job differs. Outdoor drain clearing depends on the job. A single gully or chamber costs less than a larger external system that needs jetting. Request a quote online, and we confirm the price with you before any work starts.

Outdoor Drain Blockages — frequently asked questions

Why do outdoor drains block more in autumn in London?

London streets and gardens have many trees, so heavy leaf fall hits every autumn. Leaves mat over gully gratings, wash into pipes and gather in soakaways. Fitting drain guards before the leaves drop cuts the risk of autumn blockages.

My London garden soakaway seems to have failed — what can be done?

A soakaway needs the soil around it to take up water. London Clay drains slowly, so soakaways often fail because the ground fills up. You may need a new soakaway, or a new route for surface water to a sewer. We can assess yours and advise on the best fix.

While you plan the work, read our guide Tower Hamlets' Rat Problem and What It Means for Your Drains. It covers what to check before you ask for a quote.

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