Chobham is a village built beside its water. Two small rivers, the Mill Bourne and the Bourne, flow through the village towards a confluence about a mile to the east, flanked by the wide water meadows that still separate the historic core from open country. The High Street crosses the Mill Bourne at Millbourne Bridge, and mills once worked the stream here: the Town Mill in the village itself, demolished in 1967, and Emmetts Mill downstream. The water gave Chobham its meadows and its mills. It also gave the village a flood history with real consequences below ground.
TrueFlow is a plumbing and drainage firm based in Bracknell, covering Chobham, Mimbridge and the surrounding GU24 lanes 24 hours a day, 365 days a year. Emergency visits carry a 60-minute response target, every engineer is fully insured, all work is backed by a 6-month guarantee, and the exact price is agreed before anything starts.
A village that watches its river levels
Chobham’s floods are documented across more than a century. In June 1903, after nearly 60 hours of rain, the local paper recorded water two feet deep at each bridge over the Bourne and the upper High Street under water below Benham’s mill. The village flooded again in September 1968, in 2006, when much of the village flooded, and in 2007, when the High Street was among the roads affected. The risk is current enough that the Environment Agency maintains a dedicated flood warning area for Chobham and Mimbridge, with a live level gauge on the Mill Bourne at Millbourne Bridge.
A bourne is not a distant river that floods somebody else. It runs behind the shops, under the road and along garden boundaries, and when it is high, everything that drains towards it behaves differently.
What living beside a bourne means for your drains
A property near a small watercourse deals with water from two directions. In a storm, the ground saturates as the stream rises, so surface-water systems that normally empty towards the bourne can slow, stand or back up while the level stays high, and any existing defect in the pipework shows itself at exactly the wrong moment.
The second direction is slower and easier to miss. When the water goes down it does not take everything with it: a pipe part-filled with fine sediment blocks sooner and more often in the months that follow, and while the water table stays high, older runs carry groundwater the household never sent them. After any event that put water over your garden or threshold, a CCTV drain survey from £120 shows what the water left behind, and high-pressure jetting restores the pipe’s full capacity rather than merely opening a channel through the silt.
There is a legal layer too. Under riparian ownership rules, whoever owns land beside or over a watercourse is generally responsible for keeping their stretch flowing, including culverted sections. Around the village core, where ditches and culverts thread between old plots, a blocked private culvert can put water into a neighbour’s garden as readily as your own, and keeping those stretches clear is maintenance, not emergency work. For blockages in the foul system, drain unblocking starts from £80.
Pipework behind timber frames
The same High Street that floods is one of the most intact historic village streets in this corner of Surrey, a conservation area since 1972. The Church of St Lawrence is Grade I listed, with a 12th-century core, a 15th-century south aisle and a 16th-century west porch, and the street below it keeps a remarkable run of timber-framed buildings: the 16th-century White Hart Inn, the early 17th-century Sun public house, 16th and 17th-century framed shop rows along the street, and Laurel Cottage and Cannon Cottage from the 16th century.
Plumbing inside buildings like these is a different discipline from plumbing in a 1990s close. Pipe runs follow the frame rather than the other way round, and voids hold centuries of alterations. In a frame this old, finding the fault precisely is most of the job, because a repair that knows its target barely marks the building. Where water is escaping inside old fabric, leak detection locates the source before boards or plaster come up; quotes for detection are free and agreed first.
Where Chobham spreads out
Away from the core, the village stretches along lanes where plots run large: Pennypot Lane, with its 17th-century listed Pennypot Cottage, has houses at the end of long private supply runs, and a buried fault out there is a case for detection instruments, with the quote free as always.
This is also horse country, with riding schools and livery yards off lanes such as Halebourne Lane, and the pipework serving a yard gets the same cover as the pipework serving the house. North of it all sits Chobham Common, a National Nature Reserve of some 574 hectares of lowland heath, which keeps this edge of the village permanently green.
Published prices for Chobham
All prices include VAT and the exact figure is agreed before work begins: drain rodding from £80, high-pressure jetting from £150 at up to 4000psi, a CCTV drain survey from £120, combined jetting and survey from £220, and emergency call-outs from £120 with a 60-minute response target. The full list is on the pricing page. Drain unblocking is No Fix No Fee, and the small print is short: if the pipe has collapsed rather than blocked, clearing it is not possible, and the bill stops at the survey and diagnosis.
Chobham drain and plumbing questions
Should drains be checked after floodwater goes down in Chobham?
Yes, and ideally within a few weeks. A run that carried floodwater is rarely as clean as it looks from the gully: sediment settles in the low points and surfaces later as repeat blockages that seem unrelated to the flood. A CCTV survey from £120 shows the condition of the system while any damage is still clearly flood-related, which also helps with insurance conversations.
Who has to keep the ditch or culvert on my land clear?
Usually you. Riparian ownership rules make the owner of land beside or over a watercourse responsible for maintaining their stretch, including culverted sections. The Environment Agency and the council deal with main rivers and highway drainage, but the piped stretch under a private garden or drive is the owner’s, and clearing and surveying it is standard drainage work.
Can you work on the older buildings along Chobham High Street?
Yes. Several of the High Street’s buildings are 16th and 17th-century timber-framed structures, and the approach inside them is single-minded: pin the fault down first, agree the route with the owner, and leave the old fabric alone everywhere else.
We keep horses on a lane outside the village. Is outside pipework covered?
Yes. Outdoor and outbuilding plumbing on equestrian properties is part of the normal workload, with the same 24/7 availability, the same 6-month guarantee and the exact price agreed before work starts.
What does it cost to unblock a drain in Chobham?
Rodding starts from £80 including VAT and jetting from £150, with a CCTV survey from £120 where a blockage keeps returning. Unblocking is No Fix No Fee; a collapsed pipe is the exception, since clearance cannot mend it, and there you pay for the diagnosis alone.
When the bourne rises
The level gauge at Millbourne Bridge tells Chobham when to worry; TrueFlow is for what comes after. Call 0808 175 7440: the line is answered around the clock all year, and the price is agreed before work starts. Neighbouring Bagshot, Virginia Water and Camberley are covered by the same team.