Concrete Foundations in Chiswick built for long-term stability, not shortcuts. From strip and pad foundations to engineered raft slabs, we deliver Building Regs-compliant bases for extensions, garden rooms and walls.
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A solid project starts below ground. Our team designs and installs concrete bases for extensions, garden rooms and structural walls across W4, with careful setting-out and tidy excavation. We regularly work around Chiswick High Road and near Chiswick House, where access and neighbour considerations matter. Every foundation is built to suit the load, soil conditions and your build programme.
Chiswick’s Georgian houses, Victorian villas and Edwardian family homes often need sympathetic groundwork that protects existing structures and boundaries. We’re used to tight side passages, shared driveways and mature gardens, and we plan pours and deliveries accordingly. If you’re comparing concrete foundations Chiswick area options for an extension or garden studio, we’ll recommend the right foundation type rather than a one-size-fits-all slab. Our approach keeps settlement risk low and build quality high.
We begin with a site visit, levels check and a practical foundation plan, then handle excavation, formwork, reinforcement and concrete placement. Where required, we coordinate engineering calculations and ensure Building Regulations compliance, including inspections at key stages. You’ll get clear communication, clean working practices and a documented handover. Homeowners choose us for concrete foundations in London Borough of Hounslow because we build to last and stand by our work.
Ground conditions vary across the London Borough of Hounslow, and Chiswick sites can include made ground, tree influence and high water considerations near the Thames. We assess access for concrete wagons and pumps, and plan around parking controls and delivery windows. For properties near Gunnersbury or Kew borders, we’re careful with party walls, boundary lines and existing drains. Our method adapts to the property style and the constraints of W4 streets.
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Costs depend on foundation type, depth, access and how much excavation is needed. As a guide, small pad foundations for posts or a garden room might start around £900–£2,000. Strip foundations for a typical rear extension are often £3,500–£9,000, while reinforced raft foundations can range from £6,000–£15,000+. Engineering, skips, spoil removal and concrete pump hire can affect totals.
Most domestic foundation works take 2–7 working days from excavation to pour, with larger or deeper schemes taking 1–2 weeks. Timescales depend on ground conditions, required depth, reinforcement complexity and inspection timings. Restricted access in W4 can add time if we need smaller machinery or staged spoil removal. Weather and curing time also influence when the next build phase can safely begin.
Foundations themselves usually fall under Building Regulations rather than planning, but the overall project (extension, outbuilding, wall) may need planning permission depending on size, location and design. Many garden structures are permitted development, but there are limits and special considerations for listed buildings or conservation areas. We’ll help you check requirements and ensure inspections are booked at the right stages for Building Control compliance.
Yes. We provide a 10-year warranty on our concrete foundation workmanship, covering issues such as defects arising from poor installation, incorrect reinforcement placement or inadequate compaction within our scope. We also follow manufacturer specifications for concrete and reinforcement products used. The warranty doesn’t cover movement caused by external factors such as major subsidence events, undisclosed drains, or changes made by other contractors after handover.
We install strip foundations, pad foundations, raft foundations, wall footings and deep foundations, with reinforced options where loads or ground conditions demand it. Concrete mixes can be specified for strength, sulphate resistance or faster set times, and we can include mesh, rebar cages and starter bars for walls. If you’re building near existing structures, we’ll advise on sequencing and temporary support. We’ll recommend the best option based on your design, soil and access.
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