Solid foundations matter, especially when dealing with Wandsworth's mix of London clay and Victorian-era backfill. Getting your concrete base right first time saves headaches down the line.
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SW18's terraced houses and modern developments each bring their own groundwork challenges. Whether you're planning a summer house near Wandsworth Common or need a stable base for that new garage, proper concrete preparation makes all the difference. Local soil conditions vary dramatically between Southfields' sandy patches and Earlsfield's heavy clay, requiring tailored approaches for each project.
Ground assessment comes first – checking for old foundations, drainage pipes, or the tree roots that plague so many Battersea gardens. Next, excavation depth gets calculated based on load requirements and frost protection needs. Steel reinforcement mesh goes in for larger bases, followed by carefully mixed concrete poured to precise levels. Curing time depends on weather, but SW18's relatively mild climate helps year-round.
Twenty years working across Wandsworth means knowing which suppliers deliver promptly to those narrow Victorian streets. Plus, understanding local planning quirks saves time when bases exceed certain sizes.
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Garden shed bases (8x6ft) usually run £400-600, while double garage foundations might reach £2,500-3,500. Site access and ground conditions affect final pricing significantly.
Absolutely – from riverside properties near Wandsworth Bridge to hillside gardens overlooking Southfields. Regular work includes Earlsfield's conservation areas too.
Light structures can go up after 48 hours in good weather. Heavier builds need 7-10 days for proper strength development. Winter projects take slightly longer.
Each base carries decade-long protection against structural failure. Documentation covers mix specifications, reinforcement details, and depth measurements for your records.
Stepped bases or retaining edges handle most slopes effectively. Many SW18 gardens have gradient issues – proper levelling just needs careful planning and sometimes additional shuttering.
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