Concrete Bases in Kensington designed for strength, drainage and a clean, level finish. From shed and greenhouse bases to reinforced hot tub pads, we build it right first time. Premium workmanship for W8 and W14 homes.
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A properly built concrete base is the difference between a structure that lasts and one that twists, sinks or cracks. We install shed bases, summerhouse bases, greenhouse bases and reinforced hot tub bases for homeowners across Kensington. Whether you’re near Kensington High Street or close to Kensington Gardens, we create a stable platform with the right falls and drainage. The result is a neat, durable slab ready for immediate installation.
Kensington properties often include stucco townhouses, mansion blocks and period conversions, each with different access and load requirements. In Holland Park and South Kensington, narrow side returns and basement lightwells can make deliveries and barrowing more complex. We plan pours and waste removal to suit these constraints while protecting paving, steps and communal areas. If you’re in W8 or W14, we’ll advise on the best base thickness and reinforcement for your structure and soil conditions.
Our process starts with a site visit, levels check and a clear specification for excavation depth, sub-base and reinforcement. We install a compacted hardcore sub-base, add steel mesh where needed, then pour and finish for a true level surface with clean edges. Falls and drainage are set to move water away from buildings and thresholds. Homeowners choose us for reliable scheduling, tidy workmanship and a 10-year warranty on our base construction.
Working in the concrete bases Kensington area means planning around controlled parking, narrow streets and strict waste handling. In the concrete bases in Royal Borough of Kensington and Chelsea market, we often encounter mixed ground and old garden layers that need proper excavation and compaction. We also adapt to shared entrances and mansion block access rules, scheduling deliveries to minimise disruption. Our approach keeps the site tidy and the finished slab compliant with practical building requirements.
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Costs vary by size, access and whether reinforcement is required. As a guide, small shed bases often start from around £450–£900, while larger summerhouse or greenhouse bases commonly fall between £1,000–£2,500. Reinforced hot tub or garage bases can range from £2,000–£6,000+ depending on thickness, steel mesh, excavation depth and disposal. Tight access in W8/W14 can increase labour and barrow time.
Most shed or greenhouse bases are completed in 1–2 days, including excavation, sub-base compaction and the pour. Larger summerhouse, garage or reinforced hot tub bases typically take 2–4 days, especially if deeper dig-out or extra drainage is needed. Curing time matters too: light foot traffic is usually fine after 24–48 hours, but heavy loads and installation are best after 7+ days, weather dependent.
In many cases, a concrete base for a shed, summerhouse or greenhouse is permitted development, provided the overall structure meets height and location rules. However, Kensington homes can be affected by listed status, conservation areas, or mansion block freeholder requirements. Drainage changes and works near boundaries may also need extra care. We’ll flag likely constraints during the survey and can help you check RBKC guidance before work starts.
We provide a 10-year warranty on our concrete base construction, covering workmanship issues such as settlement caused by inadequate sub-base preparation, poor compaction, or incorrect reinforcement and thickness to the agreed specification. It also covers defects linked to our finishing and edge formwork. Normal wear, damage from third-party alterations, or issues caused by underground leaks or tree root movement outside our control aren’t included. We’ll explain coverage clearly in writing.
We can build standard brushed-finish slabs, smooth power-floated finishes, or bases with a slightly textured surface for better grip. Options include reinforced concrete with steel mesh, thicker pads for hot tubs, and perimeter thickening for heavier loads. We also install drainage falls, gravel borders, and shuttered edges for a crisp outline. During the survey we’ll recommend the best specification based on your structure, access, and how you’ll use the space.
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