Those Victorian terraces lining Wandsworth's streets weren't built on hope alone - they've lasted because of proper foundations. Whether you're extending towards the Common or building fresh in Earlsfield, the ground beneath matters most.
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Foundation work in SW18 brings its own quirks. London clay shifts with the seasons, old coal cellars lurk beneath perfectly normal gardens, and neighbouring properties sit closer than anywhere else in the capital. Years of digging beneath Wandsworth homes have taught us which corners hide the surprises - from forgotten Anderson shelters near Southfields station to the remnants of old Victorian outbuildings that complicate modern extensions.
Concrete chemistry has evolved dramatically since those original Wandsworth terraces went up. Modern mixes incorporate fibres that prevent cracking, waterproofing compounds that keep basements bone dry, and reinforcement patterns calculated to handle everything from tube vibrations to that heavy clay movement. Strip foundations, raft bases, or piled systems - each property's geology dictates the approach, particularly where gardens back onto the railway embankments around Earlsfield.
Twenty-three years of SW18 groundwork creates a mental map of what lies beneath. That knowledge saves both time and unexpected costs when your digger hits something unusual at eight feet down.
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Standard extension foundations run £8,000-15,000 for most SW18 terraces. Full new-build bases start around £18,000, though proximity to rail lines or party wall complexities can push costs higher. We'll survey your specific plot conditions before quoting.
Absolutely - from the riverside developments near Wandsworth Bridge through to the residential streets bordering Wimbledon Park. Regular projects span Southfields, Earlsfield, and the Battersea borders.
Typical SW18 extension foundations take 2-3 weeks including excavation and curing time. New builds generally need 4-6 weeks, weather permitting. Complex sites with access issues may require additional time.
Every foundation carries decade-long protection against structural failure. This covers the concrete integrity, reinforcement placement, and waterproofing systems - essentially everything below ground level that keeps your building standing strong.
Narrow side returns and rear-access-only gardens are standard fare here. Mini diggers, pump trucks, and wheelbarrow brigades - we've refined the logistics of getting concrete where it needs to go, even through Victorian hallways when necessary.
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