Concrete Bases in Stockwell built for sheds, summerhouses, hot tubs and greenhouses. We pour reinforced, level slabs with proper drainage, ready for your build. Fast, tidy work for SW9 homes with tricky access and tight boundaries.
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A solid base is the difference between a garden building that lasts and one that shifts, cracks or floods. We install shed bases, summerhouse bases, greenhouse bases, hot tub bases and garage bases across SW9. From streets near Stockwell tube station to homes by Stockwell Park, we create level, reinforced concrete slabs that are ready for immediate installation. Every base is set out accurately to your structure’s footprint and door clearances.
Stockwell has a mix of Victorian terraces, Georgian houses and post-war estates, often with narrow side passages and shared boundaries. That means materials, barrowing routes and waste removal need planning before we start. We regularly work around compact gardens and paved courtyards, including properties between Brixton, Oval and Clapham. Our team is based in Norbury, just 15 minutes away, so you get responsive scheduling and local knowledge.
We start with a site visit to confirm levels, ground condition and drainage falls, then agree the base size, thickness and reinforcement. Sub-base preparation is not skipped: we excavate, compact and install a stable foundation before pouring. We keep the job tidy, protect surrounding paving and planting, and leave a clean, crisp edge ready for your installer. All workmanship is backed by our 10-year warranty for peace of mind.
Working in the London Borough of Lambeth often involves controlled parking, timed deliveries and tight access to rear gardens. Around Stockwell War Memorial and nearby residential streets, we plan barrow routes, manage spoil removal, and schedule pours to minimise disruption. Ground can vary from made-up layers to compacted clay, so we adjust excavation depth and sub-base build-up accordingly. If access is limited, we can arrange smaller loads and efficient on-site mixing solutions.
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Costs depend on size, thickness, access and whether reinforcement and extra excavation are needed. As a guide, small shed bases often start from around £450–£900, while larger summerhouse or greenhouse bases are commonly £900–£1,800. Hot tub and garage bases can range from £1,500–£4,000+ due to heavier load requirements. We’ll provide a clear written estimate after measuring in Stockwell.
Most bases take 1–2 days on site: day one for excavation, sub-base and formwork, and day two for pouring and finishing (sometimes same day for smaller slabs). Curing time matters too—light foot traffic is usually fine after 24–48 hours, but heavy loads may need 7+ days. Timescales vary with access in SW9, weather, and whether drainage or reinforcement is specified.
In many cases, a concrete base for a shed, greenhouse or summerhouse is permitted development, especially when it’s in the rear garden and within height and boundary limits. However, rules can change for listed buildings, conservation considerations, or if the structure is used as accommodation. Drainage and surface water management can also be relevant. We’ll flag any potential issues and advise you to confirm with Lambeth if needed.
Yes. Our concrete base installations come with a 10-year workmanship warranty. It covers issues caused by installation faults, such as poor compaction, incorrect levels, or inadequate reinforcement where specified. It doesn’t cover damage from third-party alterations, extreme ground movement outside reasonable control, or misuse/overloading beyond the agreed design. We document the build-up and finish so you know exactly what’s been installed.
We tailor the base to what you’re installing: standard slabs for sheds and greenhouses, thicker reinforced bases for hot tubs and garages, and edges designed for timber frames or brick upstands. Options include brushed or trowel finishes, recessed edges for paving overlays, and integrated drainage falls. We’ll help you choose the right thickness, reinforcement mesh and sub-base build-up based on load, soil and access in the concrete bases Stockwell area.
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