Drainage Contractors in Dulwich who fix flooding at the source, not the symptoms. From French drains and soakaways to channel drains and CCTV surveys, we keep gardens and driveways dry for the long term.
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If your garden is staying soggy after rain or water is pooling by the patio, effective drainage makes the difference. We install French drains, soakaways, land drains and surface drainage tailored to Dulwich homes. Clients near Dulwich Park and around East Dulwich often call us after repeated puddling or damp edging along paths. We also carry out CCTV surveys to pinpoint collapsed or blocked runs before any digging starts.
Dulwich’s Georgian and Victorian houses, plus larger detached properties, often have mature planting, older pipework and complex levels that push water towards the building. In SE21, SE22 and SE24 we commonly improve gutter drainage, add channel drains across driveways, and regrade borders to move water away from foundations. Period architecture and established gardens demand a neat finish, with minimal disruption to paving and lawns. Our solutions are designed to suit the property, not a one-size approach.
We begin with a site assessment, levels check and, where needed, a CCTV survey to confirm the cause. You’ll receive a clear plan covering discharge points, pipe sizes, and how we’ll protect existing landscaping. Installations are completed with tidy spoil management and reinstatement, then tested in wet conditions where possible. Homeowners choose us because we’re local (around 20 minutes away), transparent, and back our workmanship with a 10-year warranty.
As drainage contractors in London Borough of Southwark, we’re used to tight side access, shared drives and careful waste removal. Around West Dulwich and Dulwich Village, mature trees and older clay runs can contribute to root ingress and slow outfalls. We plan deliveries and parking to minimise inconvenience, and we design systems that respect period detailing and existing garden layouts. Where discharge options are limited, we explore soakaways, attenuation and improved surface capture.
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Costs vary with access, depth, and where water can legally discharge. As a guide, CCTV surveys typically start from £180–£350. Small surface drainage or channel drain installations often fall between £650–£1,800. French drains and land drains are usually £1,500–£4,500 depending on length and reinstatement. Soakaways can range from £1,800–£6,000+, especially if excavation is deeper or space is limited.
Most minor drainage upgrades, such as a short channel drain run or a local repair, take 1 day. French drains, land drains or combined surface drainage schemes usually take 2–5 days, depending on garden size, access, and the amount of paving or lawn to reinstate. If we’re adding a soakaway or carrying out CCTV surveys first, allow extra time for investigation, locating services, and confirming suitable discharge routes.
Many garden drainage improvements are permitted development, especially like-for-like repairs or adding drains within your boundary. However, rules can change if you’re altering levels significantly, working near a boundary wall, connecting to public sewers, or your property is listed or within a conservation area. We’ll advise at survey stage and, where required, liaise with Southwark guidance and ensure the design complies with SuDS principles and best practice.
Yes. Our drainage installations come with a 10-year warranty on workmanship for the systems we supply and fit, including French drains, channel drains, land drains and soakaways. The warranty covers defects caused by installation issues, such as incorrect falls or poor jointing. It doesn’t cover misuse, third-party damage, or extreme events beyond design assumptions. We also provide maintenance guidance to keep gullies and channels performing well.
We can specify perforated land drain pipe with clean gravel and geotextile for French drains, modular soakaway crates or traditional rubble soakaways, and polymer concrete or uPVC channel drains with discreet grates. For surface drainage, we can combine linear channels, catch pits, and permeable sub-bases where suitable. We’ll recommend options based on soil type, available space, aesthetics for period properties, and where the water can be discharged safely.
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