Concrete Bases in West Dulwich built for sheds, summerhouses, hot tubs and garages. We pour reinforced slabs with a true level finish and practical drainage, ready for installation.
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A well-built base is the difference between a structure that lasts and one that shifts, cracks or pools water. We install concrete bases for sheds, summerhouses, hot tubs, greenhouses and garages across SE21. From properties near West Dulwich station to gardens backing onto Belair Park, we tailor the slab size, thickness and falls to suit your layout. The result is a clean, stable platform that installers love working on.
West Dulwich is known for leafy streets and period homes, with Victorian villas, Edwardian houses and many conversions with long rear gardens. These properties often have narrow side access, established planting and existing patios that need careful protection. Our team plans deliveries and barrow routes to minimise disruption and keep paths and borders intact. If you’re in Dulwich Village, Herne Hill or Tulse Hill, we can match the base to your garden levels and intended use.
We start with a site visit, measure-up and a clear written specification, including reinforcement and drainage approach. Ground preparation is done properly: excavation, compacted sub-base, shuttering and steel where required, then a poured slab finished to tight tolerances. We keep the site tidy, dispose of spoil responsibly and confirm curing times before any heavy loading. Homeowners choose us for consistent workmanship, straightforward communication and a dependable 10-year warranty.
In the concrete bases West Dulwich area, gardens can have mixed ground and old made-up layers from previous landscaping. We allow for safe excavation depths, robust sub-bases and drainage runs that suit Lambeth properties and boundaries. Access and parking can be tight around West Dulwich station and nearby residential roads, so we plan deliveries and concrete pours to avoid delays. We also take care around mature trees near Dulwich Wood and established garden features.




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Costs vary by size, thickness, access and whether reinforcement and drainage are needed. As a guide, small shed bases often start around £450–£900, while larger summerhouse or greenhouse bases are commonly £900–£1,800. Hot tub bases are typically £1,200–£2,500 due to thicker slabs and steel reinforcement. Garage bases and larger pads can run £2,500–£6,000+. We’ll confirm after a site visit.
Most shed and greenhouse bases take 1 day on site, with curing time before loading. Larger summerhouse or hot tub bases usually take 1–2 days depending on excavation and sub-base depth. Garage bases can take 2–4 days, especially if levels need building up or drainage is added. Weather, access for materials, and spoil removal are the main factors that affect programme. We’ll give a realistic schedule before starting.
In many cases, a concrete base for a shed, summerhouse or greenhouse is permitted development, provided the overall structure meets height and boundary rules. However, restrictions can apply for listed buildings, conservation areas, or where drainage changes affect run-off. If the base supports a garage or a large outbuilding, the rules can be stricter. We’ll flag likely requirements, and we can work with your installer or architect to keep everything compliant.
Yes. We provide a 10-year warranty on workmanship for our concrete bases, covering issues such as poor compaction, incorrect levels, or defects caused by installation errors. It also covers reinforcement and shuttering work as specified in your quote. Normal wear, accidental damage, or problems caused by third-party alterations aren’t included. We’ll also advise on curing times and loading limits so the slab performs as intended long term.
We can build standard slabs for sheds and summerhouses, thicker reinforced pads for hot tubs, and larger garage bases with edges designed for walls or frames. Options include steel mesh reinforcement, thicker perimeters, and formed falls to a soakaway or channel for drainage. We can also provide a smooth float finish or a lightly brushed finish for grip, depending on use. We’ll recommend the best specification based on load, ground conditions and access.
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