Those Victorian terraces lining Tooting's streets weren't built to last forever - but their replacements should be. Whether you're adding a kitchen extension or starting from scratch, the foundation sets everything in motion.
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Tooting's mix of London clay and occasional gravel pockets keeps foundation work interesting. Every project along Franciscan Road or Mitcham Lane brings its own ground conditions. Years of working beneath SW17's varied housing stock - from 1930s semis to modern townhouses - means anticipating what lies beneath before the digger arrives.
Ground movement affects older properties differently here. Clay shrinkage during dry summers, tree roots from those mature plane trees, underground streams feeding the Wandle - each factor shapes the foundation design. Modern reinforced concrete with proper waterproofing handles these challenges where traditional footings might struggle. The right depth, reinforcement pattern and concrete mix transform unpredictable ground into solid support.
Local building control know our work across Furzedown and Tooting Broadway. Structural engineers recommend us because the calculations match the finished product. No shortcuts when someone's home sits on top.
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Single-storey rear extensions typically run £8,000-£15,000 for foundations. Double-storey or wrap-around projects push towards £20,000-£35,000. Site access through narrow Victorian passages and ground conditions affect final figures.
Absolutely - from Tooting Bec Common down to Tooting Broadway station, including all of SW17. Regular projects in Furzedown too, especially those tricky sloping gardens near the railway.
Excavation through construction takes 2-3 weeks for standard extensions. Concrete needs proper curing time before bricklayers start - rushing this stage causes problems years later.
Ten-year insurance-backed guarantee covers all structural elements. This includes protection against settlement, water ingress, and concrete degradation. Documentation satisfies mortgage lenders and future buyers.
Tying into Victorian foundations requires careful assessment. Sometimes underpinning the original structure makes more sense than trying to match shallow footings. Each case needs proper investigation - we'll arrange trial pits to check what you're working with.
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