Drainage Contractors in Coulsdon who fix flooding, pooling and soggy lawns for good. From French drains and soakaways to channel drains and CCTV surveys, we design the right system for your garden and driveway. We’ve completed many projects across Coulsdon and nearby areas.
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If your garden is holding water after heavy rain, the cause is often poor falls, compacted ground or overwhelmed gullies. We install surface drainage, land drains and soakaways to move water away safely and discreetly. Homeowners around Old Coulsdon and Farthing Downs often see runoff from sloping plots and downland edges. Our team pinpoints the problem and puts in drainage that works in real weather, not just on paper.
Coulsdon’s mix of large detached houses, 1930s properties and newer developments means drainage needs vary widely. Some homes need gutter drainage upgrades to stop water saturating borders near foundations, while others benefit from channel drains across drives and patios. We’re used to tight side access, long rear gardens and shared boundaries, and we plan routes that minimise disruption. For larger plots near Happy Valley, we can also integrate drainage with lawn levelling and regrading.
We start with a site visit, levels check and—where needed—CCTV surveys to confirm collapsed pipes, silt build-up or misconnections. You’ll receive a clear plan covering pipe runs, outlet points, soakaway sizing and reinstatement, with tidy workmanship throughout. We protect existing landscaping, keep spoil under control and leave surfaces safe and clean. Local homeowners choose us because we explain options plainly and back our installations with a robust warranty.
As drainage contractors in London Borough of Croydon, we account for Coulsdon’s sloping sites and downland-adjacent ground that can shed water quickly. We plan safe discharge routes, consider soakaway performance, and work around mature trees and established gardens. Access and parking can be limited on some roads, so we schedule deliveries and spoil removal efficiently. We also keep an eye on boundary lines and shared drainage where properties sit close together.
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Costs depend on access, depth, and how much excavation and reinstatement is required. As a guide, small surface drainage fixes or channel drains often start around £600–£1,500. French drains commonly fall between £1,500–£4,000 depending on length and outlets. Soakaways are typically £1,800–£5,500, with larger systems higher. CCTV surveys are usually £250–£600, depending on pipe length and reporting.
Many Coulsdon drainage jobs take 1–3 days, such as installing a short French drain run or adding channel drains to a driveway. Larger projects—multiple runs, deep excavations, or a new soakaway with significant reinstatement—often take 3–7 days. Timescales vary with ground conditions, weather, access for machinery, and whether we’re working around existing patios, planting, or services. We confirm a realistic programme after the site survey.
Most garden drainage improvements are permitted development and don’t need planning permission, especially when you’re improving drainage rather than creating new buildings. However, rules can apply if you’re altering levels significantly, working near protected trees, affecting a watercourse, or changing driveway surfacing and runoff. We’ll advise on best practice for compliant discharge and, where relevant, help you check requirements with the London Borough of Croydon before work starts.
Yes. Our drainage installations come with a 10-year warranty covering workmanship and the correct installation of the specified system (for example, French drains, soakaways, land drains and channel drains). It includes issues caused by installation defects, such as failed joints or incorrect falls. The warranty doesn’t cover misuse, later building works, or blockages caused by external factors like tree root ingress into existing private pipework we didn’t replace. We’ll explain coverage in writing.
We tailor designs to the problem and the look of your garden. Options include perforated land drain pipe with clean gravel and geotextile wrap, modular soakaway crates, traditional rubble soakaways, and ACO-style channel drains with galvanised or composite grates. For gutter drainage, we can add leaf guards, new downpipe runs and rodding access points. We’ll recommend the best combination after checking levels, soil behaviour and discharge routes.
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