Concrete Bases in Denmark Hill built for sheds, summerhouses, hot tubs and more. We install reinforced, level slabs with proper drainage for long-lasting results. Fine Landscaping is based just 20 minutes away, so help is always close.
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If you’re adding a shed, greenhouse or hot tub in SE5, a properly laid base makes all the difference. We install concrete bases designed for strength, drainage and a clean, level finish. Working around Denmark Hill station and King’s College Hospital, we’re used to tight access and busy streets. Your new slab is set out accurately so doors, frames and panels fit first time.
Denmark Hill has a mix of Victorian terraces, Georgian houses and purpose-built flats, often with compact rear gardens and shared side returns. That means bases need careful planning for barrow access, storage and spoil removal. We regularly work across nearby Camberwell and Herne Hill, where garden levels can vary and older boundaries need protecting. Our team designs each slab to suit the structure you’re installing, not a one-size-fits-all spec.
We start with a site visit, measure-up and clear recommendation on thickness, reinforcement and falls for drainage. Ground preparation is done properly: excavation, compacted sub-base, shuttering, steel reinforcement where required, then a smooth, level pour. We keep the site tidy, protect paving and planting, and confirm curing times before anything is placed on the slab. Homeowners choose us for dependable workmanship, clear communication and a 10-year warranty.
Gardens in the Denmark Hill area often sit behind narrow access routes and original brick walls, so we plan deliveries and barrow runs carefully. In the London Borough of Southwark, parking and skip placement can be restricted, so we can arrange grab-lorry removal where needed. Ground conditions vary from made-up ground to firm clay, so we adjust sub-base depth and reinforcement accordingly. We also set drainage falls to suit existing patios, gullies or soakaway options.
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Costs depend on size, access and what the base is for. As a guide, a small shed base might be £450–£900, while a larger summerhouse or greenhouse base is often £900–£1,800. Hot tub bases typically range from £1,200–£2,500 due to load requirements and reinforcement. Garage bases can be £2,500–£6,000+. We’ll confirm after a site visit in SE5.
Most shed and greenhouse bases are completed in 1 day, with larger summerhouse or hot tub bases usually taking 1–2 days depending on excavation and access. Garage bases can take 2–4 days including sub-base and reinforcement. Concrete needs curing time before loading: light foot traffic is often fine after 24–48 hours, but placing structures or hot tubs may require 7–14 days depending on thickness and weather.
In many cases, a concrete base in a rear garden is permitted development, especially when it’s supporting a typical outbuilding like a shed or summerhouse. However, rules can change if you’re in a conservation area, if the outbuilding is large, or if drainage affects neighbouring land. Southwark requirements can also apply to waste disposal and parking. We’ll flag likely permissions and can help you check before work starts.
Yes. We provide a 10-year warranty on our concrete base installation workmanship. This covers issues caused by poor preparation or laying, such as excessive settlement, cracking from inadequate reinforcement, or an out-of-level finish beyond reasonable tolerance. It doesn’t cover damage from overloading beyond the agreed design, ground movement from external factors (like leaking drains), or changes made by others. We’ll specify the intended load and care guidance in writing.
We can build bases to suit sheds, summerhouses, greenhouses, hot tubs and garages, with options for standard slabs, thickened edges, or fully reinforced designs. Finishes include smooth float, brushed anti-slip, or a slightly textured surface for better grip. We can also form drainage falls, add channels, or prepare for services like electrics and water. We’ll recommend the best specification based on your structure, access and ground conditions.
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