Those narrow Victorian plots in Colliers Wood require precision when it comes to groundworks. Between the Wandle River's high water table and century-old foundations, every dig needs careful planning.
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Colliers Wood's mix of period properties and new builds presents unique challenges below ground level. Clay soil conditions near the river, combined with decades of urban development, mean foundation work here demands local knowledge. Whether you're extending a terrace off Christchurch Road or preparing ground for a new-build near Tandem Centre, the substrate tells its own story.
Modern groundworks involve far more than shifting earth. Ground-penetrating radar helps map old sewers and utilities before breaking ground. Piling techniques adapt to local conditions – sometimes mini-piles thread between existing structures, other times traditional strip foundations suffice. Drainage calculations factor in Wandle Valley's flood plains, ensuring your property stays dry year-round.
Twenty years working SW19's varied terrain builds invaluable expertise. Local building control officers know our work meets their exacting standards first time. Neighbours appreciate minimal disruption during projects on tightly-packed streets.
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Basic excavation and foundation work starts around £8,000 for small extensions. Full basement conversions in Victorian properties typically range £35,000-60,000, depending on structural complexity and waterproofing requirements.
Absolutely – from the industrial conversions near Plough Lane to residential streets backing onto Wandle Park. Regular projects also take us into neighbouring Mitcham, Tooting and Wimbledon.
Simple foundation preparations complete within 5-7 working days. Complex basement excavations with underpinning might need 3-4 weeks, particularly when navigating party wall agreements.
All structural groundworks carry comprehensive 10-year insurance-backed guarantees. This covers foundation integrity, waterproofing systems and drainage installations against defects or failure.
Tree preservation often requires specialist techniques like root barriers or bridging foundations. Arboricultural surveys guide our approach, ensuring compliance with local planning conditions while protecting mature trees.
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