Those Victorian terraces along Main Road weren't built with modern rainfall patterns in mind. Clay soil meeting concrete drives equals drainage nightmares - but there's a surprisingly elegant fix hiding underground.
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Biggin Hill's elevation brings proper downpours, and that water needs somewhere to go. Traditional drains struggle here, especially where older properties meet newer extensions and patios. A properly designed soakaway quietly handles thousands of litres, keeping foundations dry and gardens usable year-round.
Modern crate systems beat the old rubble pits hands down. Calculate the catchment area, factor in TN16's notorious clay content, then size accordingly - usually bigger than homeowners expect. Percolation tests reveal exactly how stubbornly your particular patch resists drainage. Sometimes combining with permeable surfaces transforms a boggy disaster into functional space.
Twelve years solving drainage puzzles across the hill means knowing which corners flood first come autumn. Every installation carries decade-long protection because shortcuts show up fast when winter arrives.




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Basic residential soakaways start around £1,200, though challenging clay or limited access pushes toward £2,500. Larger properties needing multiple units or connection to existing systems typically land between £3,000-£4,500.
Absolutely - from Keston's leafy lanes to Westerham's older estates, plus Tatsfield's rural properties. The whole TN16 postcode sees regular visits from our drainage team.
Standard installations wrap up within 2-3 days, weather permitting. Complex systems linking multiple downpipes might stretch to 4-5 days, but we section work to maintain access throughout.
Each installation includes ten-year coverage against defects - rare given proper sizing and quality materials. Annual checks catch potential issues before they escalate, keeping that warranty valid through the decade.
Additional roof area definitely needs factoring in - sometimes enlarging existing systems works, other times a secondary soakaway makes more sense. Site assessment reveals the most cost-effective approach for your specific layout.
Get your free, no-obligation quote today.