Concrete Bases in Downham built for sheds, summerhouses, hot tubs and garages. We deliver reinforced, level slabs with proper drainage, ready for installation. Fine Landscaping is based just 20 minutes away, so you get fast, accountable service.
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If you’re planning a shed, summerhouse or hot tub, the base is what makes it feel solid and stay problem-free. We install concrete bases across BR1, including properties near Downham Fields and routes towards Grove Park. Every slab is set out accurately, finished level, and designed to shed water away from the structure. The result is a clean platform that installers love working on.
Downham’s established residential estate includes 1920s cottage homes, 1930s semis and plenty of post-war housing, often with practical rear gardens and side access. We’re used to working around existing patios, narrow gates and shared boundaries, keeping disruption low. Whether you’re in Bellingham, Catford or closer to Bromley, we tailor the slab thickness and reinforcement to the job. That’s why homeowners choose our concrete bases Downham area for both small and heavy-duty builds.
We start with a site visit to confirm levels, access and drainage routes, then prepare a compacted sub-base before pouring. Where needed, we add steel mesh reinforcement and formwork for crisp edges and a true level finish. We keep you updated on curing times so you know when it’s safe to install your shed, greenhouse or hot tub. Local clients trust us for tidy workmanship, clear pricing, and concrete bases in London Borough of Lewisham that are built to last.
Many Downham plots have mixed ground and older garden make-ups, so we assess stability before we pour. We plan deliveries and barrow routes to suit typical side access found on 1930s semis and post-war homes. Where parking is limited near Downham Health and Leisure Centre or busier roads, we schedule to minimise disruption. We also factor in drainage and finished heights so your base sits correctly against existing patios and thresholds.
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Costs depend on size, thickness, access and whether reinforcement is needed. As a guide, small shed bases often start around £350–£700, while larger summerhouse or greenhouse bases are commonly £800–£1,600. Heavy-duty hot tub bases and garage bases can range from £1,200–£3,500+. Ground preparation, removal of old slabs, and drainage details can affect the final figure.
Most shed or greenhouse bases are completed in a day, with larger summerhouse bases sometimes taking 1–2 days including excavation and sub-base compaction. Hot tub and garage bases can take 2–3 days depending on reinforcement, shuttering and access. Concrete needs curing time before loading: light foot traffic is usually fine after 24–48 hours, but heavy installations may need 7–10 days.
In many cases, a concrete base for a shed, greenhouse or summerhouse is permitted development, provided the overall structure meets height and location rules. However, restrictions can apply for listed buildings, conservation considerations, or if the base alters drainage and runoff. We’ll talk through your plans, check practical compliance points, and advise if you should confirm details with Lewisham Council before work starts.
Yes. Our concrete base installations come with a 10-year warranty covering workmanship issues such as significant cracking caused by poor preparation, movement due to inadequate sub-base, or incorrect levels and falls. It also covers problems linked to our specified reinforcement and edging where included. Normal hairline shrinkage can occur as concrete cures, but we design and build to minimise it and keep the slab stable.
We can build standard brushed-finish slabs, smooth trowel finishes for enclosed buildings, or slightly textured finishes for safer wet areas around hot tubs. Options include thicker sections, steel mesh reinforcement, perimeter thickening, and drainage falls or channels where runoff is a concern. We’ll advise on base size and edge detail to match your shed, summerhouse, greenhouse or garage specification, plus access and garden layout.
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