Clear blockages in outdoor drains, gullies, soakaways and manholes across London properties.
Free, no-obligation — we'll call you back fast.
Outdoor drain blockages affect the external drainage around your London property — the gullies, channels, soakaways, and inspection chambers that manage surface water and waste water outside the house. In London's densely planted streets and gardens, leaf fall, soil wash-in, and root infiltration are the primary causes of outdoor drain blockages. Furthermore, the capital's mature plane and lime trees push roots into pipe joints over decades, creating a slow but inevitable narrowing of the bore. We clear outdoor drains across London using high-pressure jetting and, where required, manual excavation of inspection chambers. In addition to seasonal debris, London's combined surface-and-foul drainage in older boroughs means a single garden gully can quickly back up an entire run. Therefore, we always lift the nearest manhole to confirm the true location of the blockage before applying any clearance method. As a result, customers avoid paying for unnecessary jetting on pipes that are actually clear, and we reach the real obstruction faster. That said, every job is followed by a full flow test from the highest accessible point so you have written confirmation the system is running freely before we leave site.
Inspect all external drain access points — gullies, inspection chambers, soakaways
Locate the blockage using drain rods or CCTV camera where required
Clear the blockage by high-pressure jetting or manual rodding
Test all external drainage is flowing freely
Advise on any preventive measures — drain guards, root management
Outdoor drain clearing in London typically costs £80-£200 for a straightforward gully or single-chamber clearance. Larger external drainage systems or blockages requiring jetting are priced individually.
London's extensive street and garden tree planting means heavy leaf fall every autumn. Leaves are the primary seasonal cause of outdoor drain blockages — they mat over gully gratings, wash into pipes, and accumulate in soakaways. Fitting drain guards over external gullies before leaf fall season significantly reduces autumn blockage risk.
Soakaways rely on the surrounding soil absorbing water. In London Clay areas, soakaways frequently fail because the clay soil has very low permeability and becomes saturated quickly. A failed soakaway may need to be replaced, or surface water drainage re-routed to a sewer connection. We can assess your soakaway and advise on the best solution.