Grange PlumbingLeak Detection · West Sussex
Leak Detection in East Grinstead — Non-Invasive Surveys
Find hidden water leaks fast in East Grinstead — without ripping up floors, tiles or driveways.
Hidden leak detection across East Grinstead, Forest Row, Lingfield and the surrounding West Sussex / Surrey border villages.
What 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 East Grinstead 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 East Grinstead homeowners call Grange Plumbing
Local to East Grinstead
Based nearby, we cover East Grinstead 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 East Grinstead actually involves
Housing stock and why supply pipes fail in East Grinstead
East Grinstead is a mix of Victorian and Edwardian terraces around the High Street and London Road, post-war semis in Sunnyside and Baldwins Hill, and large 1970s–90s estates towards Imberhorne and Blackwell. The older central properties very often still run on the original lead or galvanised iron supply pipe, while the mid-century semis typically have thin-walled 15mm copper or early black alkathene — all three fail in predictable ways. Lead and galvanised corrode from the inside and slowly choke off flow; alkathene goes brittle and splits at joints once it has been in the ground for forty years.
Ground conditions across RH19
Much of East Grinstead sits on Ashdown Sand and Wadhurst Clay. The sandier ground on the western side of the town moles cleanly and predictably. The heavier clay towards Ashurst Wood and Forest Row holds water and can move seasonally, which is one reason old rigid pipework in those areas fails at joints. We allow for both when we quote — there is no per-hour surprise on the invoice if the ground turns out to be tighter than expected.
Access, driveways and reinstatement
Most East Grinstead properties have a front garden or driveway between the meter chamber at the boundary and the house, which is ideal for moling — the two access pits sit at either end and everything between stays untouched. On the tighter High Street terraces where the meter is in the pavement, we coordinate the connection so the footway is opened for the minimum time and made good the same day.
Water supplier and postcodes we cover
East Grinstead and the surrounding West Sussex villages are supplied by South East Water, and the properties we work on are mainly in the RH19 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 East Grinstead include Ashurst Wood, Felbridge, Dormansland, Sunnyside, Blackwell, Imberhorne, Sackville and Baldwins Hill. If you are just outside these, it is still worth calling — most of West Sussex is within our normal working radius and there is no charge for a quote.