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Fat blockage (fatberg)
— Solidified mass of cooled cooking fats and oils blocking a drain, sometimes combined with wipes.
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Fibre cement pipe
— Modern asbestos-free fibre-reinforced cement pipe used for surface water and ventilation.
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Flat (purpose-built)
— Self-contained dwelling within a building designed for multiple occupation.
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Float valve (ballcock)
— Valve controlling water level in a cistern by means of a floating ball lifting a lever.
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Flood response service
— Specialist response to property flooding events, including pumping and decontamination.
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Flooded basement emergency
— Emergency response to basement or cellar flooding, often requiring pump-out and decontamination.
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Flooded bathroom emergency
— Emergency response to bathroom flooding from supply, waste or appliance failure.
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Flooded kitchen emergency
— Emergency response to kitchen flooding from sink, dishwasher or washing machine failure.
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Flow test (drainage capacity)
— Test introducing measured flow into a drain to confirm hydraulic capacity meets design.
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Foreign object in drain
— Non-flushable item lodged in a drain, such as a toy, jewellery, cloth or building debris.
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Foul drain
— Underground pipe carrying wastewater from toilets, sinks and appliances to the sewer.
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Foul drain cleaning
— Periodic cleaning of foul drains to remove fats, grease, scale and other deposits.
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Foul water flooding garden
— Sewage rising onto garden ground from a blocked drain, gully or manhole.
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Foundation movement caused by drainage
— Building movement linked to leaking or collapsed drains undermining adjacent foundations.
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Freehold property
— Property where the owner holds full title to building and land, including private drainage.
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French drain installation
— Construction of a perforated pipe and gravel trench to collect groundwater.
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Frozen pipe emergency
— Emergency thawing and repair of frozen pipes, common during December to February freeze events.
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Funeral parlour
— Premises preparing deceased for burial or cremation, with sensitive drainage and contamination control.
