Garden Drainage in Westminster that stops pooling water and protects patios, lawns and basements. We install French drains, soakaways, channel drains and pump systems with tidy, discreet finishes.
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Standing water after heavy rain can quickly ruin lawns, stain paving and push damp towards foundations. Our team delivers targeted drainage solutions across SW1, from Victoria to Whitehall. Whether you’re near Westminster Abbey or a short walk from St James’s Park, we design systems that move water away efficiently without compromising the look of your garden.
The Westminster area includes Georgian townhouses with compact rear gardens, mansion flats with communal courtyards, and luxury apartments with terraces over podium decks. These properties often need careful detailing around lightwells, retaining walls and existing paving. We’re used to working in tight access routes and protecting heritage features while improving runoff and soil performance.
We start with a site survey and levels check, then confirm the cause of flooding using CCTV surveys where needed. Your design may include grading, catch pits and land drains to control flow, with clear options and itemised pricing before work begins. Installations are completed neatly, with spoil removed and surfaces reinstated, and every system is tested before sign-off so you can rely on it in the next downpour.
In the City of Westminster, access can be restricted and parking is tightly controlled, so we plan deliveries, waste removal and working hours carefully. Many gardens sit behind period buildings, where levels are shallow and services are close to the surface. We adapt with compact machinery, hand-dig sections where required, and specify robust drainage runs that cope with intense rainfall and hard landscaping typical of Westminster courtyards.
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Costs vary with access, depth, reinstatement and whether you need pumps. As a guide, small fixes like a catch pit or short channel drain often start around £750–£1,500. A French drain or land drain run for a typical townhouse garden is commonly £1,800–£4,500. Larger schemes with soakaways, CCTV surveys and multiple runs can be £4,500–£12,000+ in Westminster.
Most Westminster drainage jobs take 1–3 days for a straightforward channel drain, catch pit or short French drain. Medium projects with multiple runs, grading and reinstatement usually take 3–7 days. Complex work—such as pump systems, deep soakaways, or restricted access requiring more hand excavation—can take 1–2 weeks. Weather, paving type and locating existing services are the main factors.
Garden drainage is usually permitted development when you’re improving ground drainage and not altering the building structure. However, Westminster has listed buildings, conservation areas and strict rules around changes to front gardens, lightwells and external appearance. If your project involves significant excavation, new outfalls, or work near public highways, permissions may apply. We check constraints, advise on compliance, and can support any required applications.
We provide a 10-year warranty on workmanship for our installed drainage systems, covering issues such as failed joints, incorrect falls, or installation-related defects. The warranty applies when the system is used as designed and not damaged by later building works or tree-root intrusion beyond reasonable control. We also explain maintenance steps—like clearing grilles and silt traps—so performance stays consistent year after year.
We tailor designs to your garden and finishes. Popular options include French drains with clean gravel borders, channel drains with stainless or black grilles, land drains feeding a soakaway, and catch pits to collect silt. Where levels don’t allow gravity, we can add pump systems with alarms. We’ll recommend pipe sizes, geotextiles and aggregate grades, then match visible components to your paving and planting scheme.
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