Concrete Bases in Shirley built for sheds, summerhouses, hot tubs and more. We deliver reinforced slabs, a true level finish and practical drainage for long-term stability.
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If you’re installing a shed, summerhouse or hot tub, the base needs to be flat, reinforced and properly drained. Our team builds concrete bases that suit Shirley gardens, from tighter side access near Addiscombe to larger plots around Addington Hills. We’re regularly working across CR0, including near Shirley Windmill, so we understand the local layout and expectations. Expect clean edges, accurate levels and a finish ready for immediate installation.
Shirley has a mix of 1930s semis, detached homes and newer developments, and each comes with different ground conditions and access. We often see sloping lawns, older patio areas that need breaking out, and gardens where the base must sit neatly beside existing paths and fences. Whether it’s a greenhouse base behind a semi or a garage base for a detached property, we size and set out the slab to match your structure exactly. You’ll get a base that looks tidy as well as performing properly.
We start with a site visit to check levels, soil, access and where water will run. Then we excavate, install a compacted sub-base, add reinforcement where required, and pour concrete to a consistent depth with a smooth, level finish. We can incorporate falls, drainage channels or permeable edges to reduce standing water. Homeowners choose us because we turn up when we say we will, keep the site safe and leave everything ready for the next trade.
Across the London Borough of Croydon, we often encounter variable ground and gardens with gentle gradients, so levels and drainage are planned from the start. Many Shirley properties have narrow side passages, so we organise materials and barrow routes to protect fences, paving and lawns. We also factor in parking and delivery access near busy routes by Trinity School and Shirley Park Golf Club. If there are boundary concerns or drainage questions, we’ll advise before work begins.
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Costs depend on size, thickness, access and whether reinforcement or drainage is needed. As a guide, smaller shed or greenhouse bases often start around £450–£900. Medium summerhouse bases typically fall between £900–£1,800. Heavy-duty hot tub or garage bases with thicker concrete and steel reinforcement are commonly £1,800–£4,500+. We’ll confirm a clear range after measuring and checking ground conditions.
Most shed, greenhouse and small summerhouse bases take 1 day on site, with larger or reinforced slabs usually 2 days. If we need to break out old concrete, excavate deeper, or bring materials through limited access, it can add time. Concrete also needs curing time before heavy loads are placed on it; we’ll advise when it’s safe for your structure or hot tub to go on.
In many cases, a concrete base in a back garden is permitted development and doesn’t require planning permission. However, rules can change if you’re building a large outbuilding, working near boundaries, altering drainage, or the property has restrictions (such as listed status). We’ll talk through the intended use, check practical constraints, and recommend whether you should confirm details with Croydon Council before starting.
Yes. We provide a 10-year warranty on our concrete base workmanship, covering issues such as settlement caused by inadequate preparation, poor compaction, or incorrect levels. It also covers cracking linked to workmanship rather than normal shrinkage. The warranty is valid when the base is used as designed (for example, correct hot tub positioning and load limits). We’ll give care guidance and curing times to protect the finish.
We can build standard brushed concrete slabs, power-floated smooth finishes, or a slightly textured finish for safer footing. Options include thicker sections for heavy loads, steel mesh reinforcement, and formed falls to a soakaway or drainage channel. We can also add a perimeter upstand or edging detail where needed. After measuring your shed, summerhouse, greenhouse or hot tub footprint, we’ll recommend the best specification for longevity.
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