Those Victorian terraces lining Streatham High Road didn't stay standing for over a century by chance - proper foundations make all the difference. Whether you're extending that period property or starting fresh on a backland plot, getting the groundwork right matters.
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Foundation work in Streatham brings its own set of challenges. Clay soil shifts with the seasons, mature tree roots from those lovely plane trees can cause havoc, and many properties sit on sloping ground typical of this part of South London. Understanding these local conditions shapes every foundation project, from the smallest garden room base to full-scale basement conversions increasingly popular around Streatham Common.
Modern foundation techniques have evolved beyond the simple strip foundations of yesteryear. Reinforced concrete rafts distribute weight evenly across challenging ground conditions. Pile foundations reach stable depths where subsidence threatens. Mini-piling equipment fits through narrow Victorian side returns - essential when neighbouring properties share party walls mere inches away. Each method suits different scenarios common across SW16 and SW2.
Twenty years working Streatham's varied terrain builds invaluable local knowledge. Soil surveys near Tooting Bec Common differ vastly from conditions around Streatham Vale. This expertise prevents costly surprises once excavation begins.
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Single-storey rear extensions typically require £4,000-£8,000 for foundations, depending on ground conditions and size. Double-storey additions or those near large trees often push towards £10,000-£15,000 due to deeper excavations or specialist piling requirements.
Yes, regular projects span from Streatham Hill's grand houses down to the railway cottages of Furzedown. The SW16 and SW2 postcodes form our core operating area, including Streatham Common's conservation zones where planning considerations affect foundation design.
Standard residential foundations take 2-3 weeks including excavation, concrete pour, and curing time. Complex sites with poor access or extensive groundwork might extend to 4-5 weeks, particularly during wet winter months.
All structural foundation work carries a decade-long warranty covering settlement, cracking, or structural movement. This insurance-backed guarantee transfers with property ownership, providing peace of mind for future sales.
Underpinning offers a solution for properties showing signs of movement or requiring deeper foundations for extensions. Mass concrete or mini-pile underpinning stabilises existing structures without the disruption of full foundation replacement - particularly valuable for occupied Victorian properties.
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