Surrey · RH4, RH5
Drainage in Dorking
Drainage services cover clearing blocked drains, repairing or replacing damaged drainage runs, CCTV drain surveys to diagnose problems, and installing new drainage as part of extension, new-build or groundworks projects.
In Dorking, that covers Westcott, Milton Heath, Pixham, Ranmore, North Holmwood, Betchworth. Dorking is a historic market town at the foot of Box Hill and the North Downs, within the Surrey Hills National Landscape, with a well-preserved High Street and a range of period and character properties in the surrounding villages.

Coverage
Areas we cover in Dorking for drainage
Property styles in Dorking
The town and surrounding villages have a strong stock of period cottages, Victorian villas and larger detached houses, with barn and outbuilding conversion opportunities more common in the surrounding rural parts of the district.
Planning considerations
Mole Valley District Council is the local planning authority. Much of the area around Dorking falls within the Surrey Hills National Landscape (National Landscape, formerly AONB), and the town centre is a conservation area, both of which affect design approach and materials for extensions and conversions.
How it works
Our drainage process
- 01
Diagnosis
Establishing the cause of a blockage or fault, using a CCTV drain survey where the cause isn't obvious.
- 02
Access
Locating and excavating access points where a repair (rather than clearance alone) is needed.
- 03
Repair or clearance
Clearing blockages, repairing damaged sections, or relining or replacing pipework as required.
- 04
Testing
Confirming the drain runs freely and any repair is sound before reinstating ground and surfaces.
- 05
Reinstatement
Making good any surfaces disturbed to access the drainage run.
Also in this area
Other services we provide in Dorking
Nearby coverage
Drainage in nearby areas
FAQs
Drainage in Dorking: FAQs
Do you provide drainage across all of Dorking?
Yes, we cover the RH4 and RH5 postcode areas in full, including Westcott, Milton Heath, Pixham, Ranmore, North Holmwood, Betchworth.
How do I know if I need a CCTV drain survey?
Recurring blockages, slow-draining fixtures across the property, or unexplained damp near ground level are common signs. A CCTV survey identifies the exact cause and location before any excavation is planned.
Who is responsible for a blocked shared drain?
Shared drains serving more than one property are usually the responsibility of the water company, while private drains serving a single property are the owner's responsibility. We can advise on which applies once the drain run is surveyed.
Can barns near Dorking be converted to residential use?
It depends on the specific planning history and policy for the building, including whether Class Q permitted development rights apply. This is assessed individually for each building.
Get a quote for drainage in Dorking
Tell us about the property and what you have in mind, and we'll arrange a site visit.
Last reviewed 2026-07-19.