Grange PlumbingWhat to do if you suspect a hidden leak
Damp patches on a ceiling, a meter that ticks over when nothing is running, or an unexplained jump in your water bill — all classic signs of a hidden leak. In Dorking the most common culprits are pinholes in old copper pipework, perished compression joints under floors, and supply-pipe leaks running between the meter and the house.
We use acoustic listening sticks, thermal imaging cameras and pressure testing to pinpoint the leak to within centimetres before anything is disturbed. That means a targeted repair instead of ripping up an entire floor or driveway.
If the leak turns out to be on the underground supply pipe, we can fix it in the same visit using moling — replacing the run without digging a trench across your garden or drive.
See our full leak detection serviceWhat's included
- Acoustic listening equipment for in-wall and under-floor leaks
- Thermal imaging to map hot/cold water runs
- Pressure testing and tracer gas where needed
- Underground supply pipe and driveway leaks
- Written report for your insurance trace-and-access claim
- Repairs handled in-house — including moling for buried pipes
Why Dorking homeowners call Grange Plumbing
Local to Dorking
Based nearby, we cover Dorking and the surrounding villages regularly.
Fully insured
Every job is fully insured with a written quote and clear invoice.
Fast response
Same-day or next-day visits for leaks and water-main problems.
What leak detection work in Dorking actually involves
Housing stock and why supply pipes fail in Dorking
Dorking has a high concentration of period property — Victorian and Edwardian houses in Deepdene and Pixham, plus stone and flint cottages in the surrounding villages. A great many of these still have their original lead supply, and because they sit in conservation areas the reinstatement of a trenched drive or path is both costly and closely scrutinised. Trenchless replacement avoids the problem entirely.
Ground conditions across RH4 & RH5
Dorking lies on greensand and chalk at the foot of Box Hill, with clay in the vale to the south. Greensand moles well. Chalk and flint bands need a survey first, and on some runs a shallow narrow excavation is genuinely the better and cheaper answer — we will tell you when that is the case.
Access, driveways and reinstatement
Village properties around Westcott, Brockham and Betchworth often have long driveways with a meter set well back from the house. Runs of 25 to 40 metres are routine here, and moling them in a day is normal.
Water supplier and postcodes we cover
Dorking and the surrounding Surrey villages are supplied by SES Water, and the properties we work on are mainly in the RH4 & RH5 postcode area. Your water supplier is responsible for the main in the road and the communication pipe up to the boundary stop tap; the supply pipe from the boundary into your home is the homeowner's responsibility, and that is the section we replace, repair and leak-locate.
Streets and neighbourhoods we regularly work in around Dorking include North Holmwood, South Holmwood, Westcott, Brockham, Betchworth, Mickleham, Pixham and Deepdene. If you are just outside these, it is still worth calling — most of Surrey is within our normal working radius and there is no charge for a quote.