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Drainage glossary · Blockages and their causes

Fat, oil and grease

Cooking residues that enter a drain as warm liquid and solidify on the pipe wall as they cool. The resulting layer narrows the pipe and traps food waste, coffee grounds and detergent solids.

What it means for you

Grease is the single most common cause of kitchen and commercial drain blockages in London. Cool it, scrape it and bin it.

Not sure whether this applies to your property? Ask us. There is no call-out charge and the price is fixed before any work starts.

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