Leak Detection Purley
Hidden water leaks in Purley pinpointed without opening floors or walls — acoustic, thermal imaging and tracer gas detection with no find, no fee, from engineers who know Purley buildings.
Local knowledge
Purley housing, from a leak engineer's side
Purley is characterised by spacious 1930s semi-detached and detached homes, often with original features and later extensions. These properties typically have longer pipe runs from the street to the house and through sizeable roof spaces and under suspended timber floors. Loft conversions add another layer of plumbing complexity, with bathrooms added in areas not originally designed for them. The larger gardens also mean longer external runs for drain and supply pipes, which are susceptible to ground movement and root intrusion.
Engineer's note
If your water bill spikes or you see a persistent damp patch in your garden, don't wait – a leak on your long supply pipe is getting worse. We respond 24/7.
Covered in Purley
- Hidden leaks under floors and in walls
- Underground supply pipe leaks
- Central heating and boiler pressure loss
- Underfloor heating loop leaks
- Flat-to-flat leak origin investigations
- Trace & access reports for insurance claims
What fails here
Common leak problems in Purley
01
Long Supply Pipe Leaks
The distance from the water main to the house means a long, often old, underground supply pipe. A leak on this run can saturate the garden and undermine foundations before it's noticeable inside. We use ground microphones and tracer gas to locate the breach without extensive excavation.
02
Leaking Header Tanks
Many original cold-water storage tanks remain in large roof spaces. Corrosion or failed ball valves cause overflows that can quietly soak through ceilings for days. A sudden drop in water level in the tank is a key sign.
03
Drainage Collapse in Gardens
Clay soil and mature trees can lead to fractured clay drains running to the sewer. This causes persistent damp patches and sewage smells. We conduct CCTV drain surveys to identify the exact point of collapse for targeted repair.
04
Leaks in Loft Conversion Bathrooms
New plumbing installed for en-suites in converted lofts may not be properly lagged or supported. Frost damage or movement can cause leaks that damage the original house structure below. Thermal imaging from inside the main roof space often reveals the issue.
Three methods, one marked point
Acoustic survey
Ground microphones and correlators follow the sound of escaping water through floors and ground.
Thermal imaging
Infrared cameras reveal wet patches and buried heating runs through the floor surface.
Tracer gas
A safe hydrogen mix escapes through the exact failure point and rises to our surface detector.
Leak detection in Purley — FAQs
How quickly can you attend a leak in Purley?
Same-day appointments are usually available in Purley and across Croydon, and next-day almost always. If water is actively escaping, say so when you book — live leaks are prioritised and we can talk you through isolating the supply while the engineer travels.
What does leak detection cost in Purley?
A fixed fee agreed at booking — typically £250–£450 for a domestic detection visit — covered by no find, no fee. That includes pressure testing per circuit, thermal imaging, acoustic survey and moisture mapping. Repairs are quoted separately before any work starts.
Do you know Purley properties?
Yes — Purley is characterised by spacious 1930s semi-detached and detached homes, often with original features and later extensions. These properties typically have longer pipe runs from the street to the house and through sizeable roof spaces and under suspended timber floors. Loft conversions add another layer of plumbing complexity, with bathrooms added in areas not originally designed for them. The larger gardens also mean longer external runs for drain and supply pipes, which are susceptible to ground movement and root intrusion.
Can you provide a report for my insurer?
Every Purley detection visit can produce an insurer-ready trace and access report — cause, precise origin, methods used, moisture map and photos — typically within 48 hours.
Read before you book
Leak detection guides
How to Choose a Leak Detection Company in London: Speed is Everything
Choosing a leak detection company in London comes down to one critical factor: response speed. Here’s how to ensure you get immediate, 24/7 action.
ReadCheap Leak Detection in London: What's the Real Cost of a Slow Response?
Opting for 'cheap' leak detection can lead to massive hidden costs from escalating damage. True value lies in immediate, 24/7 emergency response to limit destruction.
ReadNo Find, No Fee Leak Detection Explained: Your Guarantee of Results
Our 'no find, no fee' guarantee means you pay nothing if our emergency engineers can't locate your leak. It's our commitment to fast, effective results, day or night.
ReadWhere we work
Purley & Croydon
Map data © OpenStreetMap contributors.
Losing water in Purley?
Tell us the symptoms and your postcode. Fixed detection fee, agreed arrival window, no find no fee — confirmed before you book.
Book a detection visit