Those chalk hills surrounding Sevenoaks create unique drainage challenges for local properties. Getting water away from your home requires understanding both the landscape and the clay-rich soils that dominate our area.
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Victorian properties in central Sevenoaks often struggle with inadequate drainage systems that simply weren't designed for modern rainfall patterns. The combination of impermeable surfaces and our region's clay substrate means water has nowhere to go during heavy downpours. Many homeowners discover drainage problems only after their first winter here, when pooling water becomes impossible to ignore.
Modern drainage design calculates water flow based on your property's exact gradient and soil permeability. French drains work particularly well for the sloping gardens common in Kemsing, while properties near Dunton Green's flatter areas benefit from attenuation tanks. Each system channels excess water safely away, preventing foundation damage and eliminating those muddy patches that plague so many Kent gardens.
Twenty years solving drainage issues across the North Downs has taught us which approaches actually work in this geology. Local knowledge matters when you're dealing with springs that appear after heavy rain or seasonal water table changes unique to our area.
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Most residential drainage projects in the TN13-15 area range from £2,500 for basic soakaway installation to £8,000 for comprehensive systems serving larger properties. Costs depend heavily on access difficulties and existing ground conditions.
Yes, our teams work across all TN13, TN14 and TN15 postcodes, from Otford's conservation areas to new developments in Dunton Green and the rural properties around Kemsing.
Drainage systems typically take 3-5 days to install, with lawns recovering within 4-6 weeks during growing season. We'll provide temporary pathways to minimise disruption during works.
All drainage installations carry our decade-long guarantee covering materials and workmanship. This includes annual inspections to ensure your system continues performing effectively as ground conditions change.
Contemporary drainage design uses climate projection data to size systems appropriately. We calculate capacity based on 1-in-100 year storm events, ensuring your property stays protected even during extreme weather.
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