Mitcham's clay soil and varying water tables demand groundwork expertise that understands local conditions. From Victorian terrace extensions to new build foundations, proper preparation makes all the difference.
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Those familiar with Mitcham's mix of housing stock know that beneath every successful project lies solid groundwork. Whether you're extending a 1930s semi near Figges Marsh or installing drainage for a property backing onto Mitcham Common, the underground preparation determines everything that follows. Local knowledge matters when you're dealing with everything from London clay to historic watercourses that still influence modern construction.
Proper excavation and foundation work involves more than just digging holes. Site assessment identifies existing utilities, establishes correct depths for your specific soil conditions, and ensures compliance with building regulations. Modern groundwork techniques include reinforced concrete rafts for poor ground conditions, specialized drainage systems to handle Mitcham's occasional high water table, and careful spoil management that respects neighbouring properties. Each stage requires precision equipment and experienced operators who understand how local geology affects structural integrity.
Twenty years of working across CR4 and SW16 postcodes means recognising patterns in local ground conditions that newcomers might miss. Strong relationships with Mitcham's building control officers and established connections with local suppliers near Colliers Wood ensure projects progress smoothly without unexpected delays.
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Basic excavation and foundation work for a single-storey extension typically ranges from £3,000-£8,000, while comprehensive groundworks including drainage for larger projects can reach £15,000-£25,000. Victorian properties often require additional underpinning work, adding £10,000-£20,000 to costs.
Yes, regular projects span from Mitcham Common across to Colliers Wood, covering all CR4 postcodes and extending into SW16 areas. This includes residential streets off Western Road and properties near Figges Marsh.
Standard extension foundations typically need 5-7 working days including excavation, concrete pour, and curing time. Larger projects or those requiring underpinning can extend to 3-4 weeks depending on ground conditions and weather.
All foundation and structural groundwork carries a 10-year guarantee covering settlement, water ingress, and structural movement. This includes detailed documentation for your buildings insurance and any future property sales.
Absolutely - party wall notices and agreements are handled as part of the service, particularly important for Mitcham's many terraced streets. This includes serving proper notices, arranging surveys, and ensuring all legal requirements are met before work begins.
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