Concrete Bases in Twickenham built for sheds, summerhouses, hot tubs and more. We pour reinforced, level slabs with proper drainage for long-lasting results. Clean, tidy workmanship from a premium South London team.
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A solid base is the difference between a structure that lasts and one that twists, cracks or collects water. We install shed bases, summerhouse bases, hot tub bases, greenhouse bases and garage bases across TW1 and TW2. From gardens near Twickenham Stadium to quieter streets around St Margarets, we set out accurately and pour for a true, level finish. Every base is designed to suit the load, footprint and access.
Twickenham’s mix of Victorian villas, Edwardian houses and 1930s family homes often comes with long side returns, mature gardens and tight access routes. We plan barrow runs, protect paving and lawns, and schedule deliveries to minimise disruption. If you’re upgrading a garden room in Whitton or adding a hot tub near Marble Hill Park, we’ll tailor thickness and reinforcement to the job. Our experience with local property layouts helps keep projects smooth and predictable.
We start with a site visit, levels check and a clear written specification, including sub-base depth, reinforcement and drainage. Ground is excavated, compacted and formed before we pour, float and finish the slab to the agreed tolerance. Edges are neat, falls are set to shed water, and we leave the site clean. Homeowners choose us for reliable communication, careful workmanship and a 10-year warranty on our concrete base installations.
Across the London Borough of Richmond upon Thames, gardens can vary from firm ground to softer, made-up areas near older extensions. We assess bearing capacity, set appropriate sub-base depth and specify reinforcement where needed. Access and parking in Twickenham streets can be tight, so we plan deliveries and waste removal carefully. Our approach suits everything from compact courtyards in Richmond to larger plots around Teddington.
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Costs vary by size, thickness, access and whether reinforcement and drainage are required. As a guide, small shed bases often start from around £450–£900, while larger summerhouse or greenhouse slabs commonly fall in the £900–£2,000 range. Hot tub and garage bases are usually £1,500–£4,500+ depending on load requirements and excavation. We provide a detailed, itemised quote after a site visit.
Most bases take 1 day to excavate and form, then a further day to pour and finish, depending on size and access. Larger or reinforced slabs can take 2–3 days including sub-base compaction and setting drainage. You can usually walk on the slab after 24–48 hours, but we recommend waiting 7 days before installing heavy structures and up to 28 days for full cure, especially for hot tubs.
In many cases, a concrete base for a shed, summerhouse or greenhouse is classed as permitted development, provided the overall structure meets height, boundary and use rules. However, restrictions can apply for listed buildings, conservation areas, or if you’re adding a large outbuilding. We’ll flag likely issues during the survey and can advise what to check with the London Borough of Richmond upon Thames before work starts.
We provide a 10-year warranty on our concrete base workmanship. This covers issues caused by installation, such as significant settlement due to inadequate sub-base preparation, poor levels, or edge failure where the specification was followed. It doesn’t cover damage from third-party alterations, extreme impact loads beyond the design, or movement caused by undisclosed underground services. We also explain aftercare and curing to protect the finish.
We can install plain brushed concrete for grip, a smooth float finish for garden rooms, or a power-floated finish where appropriate. Options include thicker slabs for hot tubs, mesh or rebar reinforcement, edging details, and integrated drainage falls or channels. We’ll also advise on base size allowances for cladding and overhangs, plus anchor points for sheds and summerhouses. Our recommendations balance durability, budget and your build plans.
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