Outside Drain Blocked in Sheffield — Gully & Chamber Clearing

Sheffield's External Drain Problem

Sheffield is one of England's hilliest cities. On steep residential streets — Sharrow Lane, Cemetery Road, Crookes Road, Walkley Road — surface water run-off builds up speed as it flows downhill and overwhelms gully pots that may already be partially full of leaves and silt. A blocked gully on a steep street does not just cause a puddle: it sends water running down the pavement and into front yards, basements, and garages.

The city's large stock of mature trees adds a seasonal dimension. During autumn, leaf fall can block an external drain cover entirely within a few days of heavy rain. We respond quickly to external drain flooding — call us at the first sign of overflow rather than waiting for it to get worse.

What We Clear

• Gully pots: Lifted, emptied, jetting of the outlet pipe, replaced
• External drain chambers and manholes: Cleaned out and outlet pipes jetted
• Yard gullies and back-garden drains: Cleared of leaves, silt, and FOG (fats, oils, grease)
• Driveway drains: Channel drains and linear drainage systems unblocked
• Flat-roof drainage: Hopper heads, rainwater pipes, and below-ground connections cleared

Fat, Oil, and Grease in External Drains

In terraced houses and properties with back-yard kitchens, cooking fat frequently enters the external drainage system via the kitchen drain. When it cools in the outside pipework — particularly in winter — it solidifies and accumulates in the gully pot and drain runs. This type of blockage requires jetting rather than just lifting and emptying the pot, as the solid fat lining the outlet pipe will cause a rapid recurrence if not removed.