Concrete Bases in New Cross built for sheds, summerhouses, hot tubs and more. We pour reinforced slabs with a true level finish and practical drainage, ready for installation. We’ve completed many projects across New Cross and nearby areas.
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If you’re planning a shed, summerhouse or hot tub, a properly laid base is what keeps everything stable and dry. We install robust slabs across SE14, including projects near New Cross station and Deptford Park. Each base is set out precisely to suit your structure’s footprint and access route. The result is a clean, durable platform that looks tidy and performs for years.
New Cross homes often include Victorian terraces, Georgian houses and converted flats, where gardens can be long, narrow and shared by neighbouring boundaries. That means careful planning for barrow access, side returns and protecting existing paving and planting. We’re used to working around student lets and busy households near Goldsmiths University, keeping the site organised and disruption low. Whether it’s a compact courtyard or a larger plot towards Brockley, we tailor the build to the space.
Our process starts with a site visit, levels check and a clear recommendation on thickness, reinforcement and drainage. We excavate to the correct depth, install a compacted sub-base, then pour and finish the slab to a true level. You’ll get straightforward communication, tidy workmanship and a base that’s ready for your installer’s tolerances. Local homeowners choose us for reliable scheduling and a finish that doesn’t crack or rock under load.
In the concrete bases New Cross area, we often see mixed ground and made-up layers from older gardens, so we focus on correct excavation depth and compaction. Access can be tight around terraces and converted flats, and parking restrictions are common near New Cross station, so we plan deliveries and waste removal carefully. We also consider neighbouring boundaries and party walls when setting out levels. If you’re comparing concrete bases in London Borough of Lewisham, our approach prioritises stability, drainage and a tidy finish.




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Costs vary by size, access and specification. As a guide, a small shed base may start around £350–£800, while larger summerhouse or greenhouse bases often fall between £900–£2,000. Hot tub bases and garage bases can range from £1,500–£4,500+ depending on thickness, reinforcement and ground preparation. Restricted access in SE14 can increase labour time and disposal costs.
Most bases take 1 day for excavation and sub-base, then a further day to pour and finish, depending on size. Larger garage bases or heavily reinforced slabs may take 2–3 days. Drying time matters too: light foot traffic is usually fine after 24–48 hours, but we typically recommend waiting 7 days before installing heavy items like hot tubs. Weather, access and ground conditions can affect timelines.
In many cases, a concrete base for a shed, greenhouse or summerhouse is permitted development, provided the structure meets height, location and use rules. However, rules can change for front gardens, listed buildings, flats/leaseholds, or if drainage affects public sewers. We’ll flag likely issues during the survey and can help you check Lewisham guidance before work starts, so you avoid problems later.
Yes. Our concrete base installations come with a 10-year warranty covering workmanship, including issues such as settlement caused by inadequate preparation, poor compaction, or incorrect finishing levels. It also covers cracking linked to installation faults, not normal hairline curing marks. We’ll provide care guidance on curing and loading times, because premature heavy loading can damage any new slab.
We can build standard slabs for sheds and greenhouses, thicker reinforced slabs for hot tubs, and heavy-duty options for garages. Popular choices include smooth float finishes, brushed anti-slip finishes, and formed edges for a crisp outline. We also add drainage falls, soakaway connections where suitable, and optional mesh or rebar reinforcement. We’ll recommend the best specification based on your structure, ground, and access constraints.
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