Norbury's compact gardens and heavy clay soil create unique drainage challenges, especially during autumn downpours. Understanding how water moves through your specific plot is the first step to a permanently dry, usable outdoor space.
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Clay soil dominates much of SW16, turning rear gardens into swamps after just moderate rainfall. Victorian terraces along Norbury Avenue often suffer from inadequate original drainage, while newer builds near Pollards Hill struggle with compacted earth from construction work. Each property requires a different approach – what works for a sloped garden in Thornton Heath might fail completely on Norbury's flatter terrain.
Modern drainage systems go far beyond simple soakaways. Perforated pipes wrapped in geotextile fabric prevent soil ingress whilst maintaining water flow. Strategic placement beneath lawns or alongside boundary walls channels excess water away from foundations and patios. French drains hidden beneath decorative gravel create dry pathways without disrupting your garden's appearance.
Twenty years solving drainage puzzles across South London means recognising patterns others miss. That persistent damp patch might stem from next door's blocked guttering, not your own garden's layout.
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Basic drainage improvements start around £800 for smaller SW16 gardens. Comprehensive systems for waterlogged lawns typically range £2,000-£4,500, depending on access difficulties and existing landscaping that needs protecting.
Absolutely – from Norbury station down to Pollards Hill, including all the residential streets between Streatham Common and Thornton Heath. Same-day site assessments available for urgent flooding issues.
Most drainage installations take 2-4 days, weather permitting. Simple soakaway repairs might be completed within a morning, whilst full garden systems need careful excavation to protect existing plants and structures.
Every installation carries a decade-long guarantee covering both materials and workmanship. This includes annual check-ups for the first two years, ensuring your system performs perfectly through Norbury's wettest winters.
Retrofitting drainage rarely requires lifting established features. Channel drains along patio edges, permeable paving joints, and strategic boring beneath decking frames all provide effective water management without major disruption.
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