Battersea's shifting clay soils and ageing Victorian foundations demand precision engineering. Whether you're extending that period terrace or stabilising a subsiding bay window, getting the groundwork right determines everything that follows.
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Those elegant SW11 townhouses weren't built with modern loads in mind. Adding rear extensions, loft conversions, or basement excavations requires foundations that respect both the original structure and today's building regulations. The London clay beneath Battersea presents unique challenges - expansive when wet, shrinking dramatically during dry spells, constantly testing your home's stability.
Modern foundation design goes far beyond simply digging and pouring concrete. Ground-penetrating radar identifies existing services and Victorian soakaways. Structural calculations determine precise depths and reinforcement requirements. Waterproof membranes protect against the high water table common between Battersea Park and the Thames. Each project begins with thorough soil analysis - essential when neighbouring properties share party walls or when working near Network Rail's embankments around Clapham Junction.
Twenty years of navigating Wandsworth's planning requirements gives us insight others lack. Our engineers understand the delicate balance required when underpinning period properties whilst satisfying modern standards.
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Strip foundations for a single-storey extension generally range £8,000-£15,000. Underpinning Victorian bay windows starts around £12,000. Full basement excavations beneath Battersea townhouses typically require £80,000-£150,000, depending on depth and waterproofing requirements.
Absolutely - from the conservation areas near Battersea Park to the new developments in Nine Elms. Regular projects include Northcote Road's Victorian terraces, mansion blocks near Clapham Junction, and riverside properties requiring piled foundations.
Strip foundations typically cure sufficiently within 7-10 days. Underpinning projects run 3-6 weeks per section. Complex basement excavations beneath existing homes often span 12-16 weeks, factoring in temporary works and waterproofing stages.
Every foundation carries our decade-long structural guarantee, backed by comprehensive professional indemnity insurance. This covers both the concrete work itself and any impact on existing structures - particularly important given SW11's interconnected Victorian properties.
Definitely - we regularly install tanked foundations and use specialist waterproofing systems for properties near the Thames. Dewatering pumps manage groundwater during excavation, whilst permanent drainage solutions prevent future hydrostatic pressure issues.
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