Those Victorian terraces throughout SE13 weren't built to last this long by accident - their foundations tell the story. Today's Lewisham properties deserve the same structural integrity, whether you're extending that period home or breaking ground on something entirely new.
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Foundation work in Lewisham presents particular challenges that locals know all too well. Clay-heavy soil shifts with the seasons, while mature tree roots from those characterful London planes can wreak havoc on older footings. Getting the groundwork right means understanding how SE13's terrain behaves - knowledge that comes from years of digging beneath these streets.
Modern foundation techniques have evolved significantly since those original Victorian builders laid their brickwork. Steel reinforcement meshes through concrete pours while waterproof membranes protect against the water table that sits surprisingly high in parts of Lewisham. Ground surveys reveal what's beneath before any excavation begins, preventing costly surprises that plague amateur attempts.
Twenty years working beneath Lewisham properties teaches you which corners matter most. From Hither Green's clay pockets to the old river deposits near Ladywell, each plot demands respect for what lies below.
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Single-storey rear extensions typically require £8,000-£15,000 for foundations, while full underpinning projects start around £25,000. Victorian terraces often fall somewhere between, depending on existing conditions.
Based right here in SE13, we handle projects throughout Lewisham plus neighbouring Catford, Blackheath and Deptford. Local knowledge matters when you're digging foundations.
Standard extension footings take 2-3 weeks including excavation and curing time. Underpinning existing structures typically needs 4-6 weeks, weather permitting.
All foundation projects carry comprehensive 10-year structural warranties, backed by proper insurance. Building control sign-offs provide additional peace of mind for your investment.
Absolutely - terraced properties make up much of Lewisham's housing stock. We coordinate with party wall surveyors and maintain excellent relationships with neighbours throughout the process.
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