Leak detection for letting agents in Greater London
A tenant reports a damp ceiling, the heating loses pressure or the water meter moves unexpectedly. ADI helps letting agents investigate hidden leaks in Greater London rental properties and record the findings for the landlord.
Explain the symptoms and arrange access with the people who occupy or manage the building. For a shared supply or a leak affecting another home, discuss which rooms and communal areas may need to be checked before booking.
Areas we cover in Greater London
- Croydon
- Bromley
- Enfield
- Harrow
- Hayes
- Romford
- Richmond
- Sutton
Map of Greater London
A managing-agent booking with further access still to resolve
A managing agent booked an investigation for a London block of flats after a warning about water use. Continuous meter movement and an immediate pressure drop supported further checks of the shared mains. The engineer searched the car park and the incoming supply around a service cupboard.
The strongest tracer-gas indication could have come from a nearby fault or gas moving along ducting. Other gas and acoustic checks did not pinpoint the leak. The report left the agent and customer to consider further opening-up or a new supply route; no repair was completed.
Find the cause of a leak in a managed home
Water coming through a flat's ceiling
Coordinate access to both homes where needed. A ceiling stain does not identify the responsible pipe or occupier.
Heating that keeps losing pressure
Provide pressure records and any boiler engineer findings before concealed circuits are investigated.
Damp around kitchens and appliances
Ask the tenant which appliance or fitting was used before the damp appeared.
Pipework beneath floors
Identify floor finishes and the landlord’s authority for any targeted access following detection.
Supply pipes and unexplained water use
Confirm whether the meter serves one home or several; readings must account for all known users.
Water entering around roofs and walls
Record the link to rainfall. ADI investigates ingress; roofing and building repairs are separate.
How ADI investigates concealed leaks
- Temperature and moisture checks
- Surface readings guide the search but do not prove a source. Thermal imaging depends on a useful temperature difference; it does not see through walls.
- Pipe and access tests
- Acoustics, pressure testing and tracer gas can help on suitable pipework. Isolation and site conditions affect which tests are possible.
- Visual and water checks
- Cameras and controlled water tests can inspect accessible voids or trace ingress. Further access may still be required to confirm a finding.
Agree any opening or repair separately with the landlord before work proceeds.
Your survey is carried out by ADI Leak Detection
Letting Agent Leak Detection, a specialist service from ADI Leak Detection.
ADI’s office is in High Wycombe, with engineers working across England, Scotland and Wales. These are ADI’s business-wide credentials.
- Engineers nationwide
- 25+
- Public liability insurance
- £5m
- ADI established
- 2011
- Water industry approval
- WaterSafe
Reviews of ADI’s service on Trustpilot
Selected excerpts from five-star reviews of ADI’s wider service across the UK.
Full review on TrustpilotQuick and professional. They were able to send out an engineer the following day after my call.
Full review on TrustpilotI hope I don’t require leak detection services again, but if I ever do I will be going back to ADI.
Greater London survey questions
Which parts of Greater London does this page cover?
This page follows the ceremonial county of Greater London: the 32 London boroughs, including Westminster, but excluding the separate City of London. The places listed are examples within Greater London, not a complete list or a record of past jobs. Call with the full postcode to discuss the property and current availability.
Can a letting agent arrange the survey on the landlord's behalf?
Yes. Explain that you manage the property and confirm your authority to arrange the work. Agree the quote, who will provide access and who can approve any additional investigation or separately quoted repairs.
What if the leak appears in the flat below the property we manage?
Tell ADI which homes are affected and what is visible in each. The engineer may need access to both properties or to communal areas. A ceiling stain does not by itself establish the source of the leak or who is responsible for it.
Will you need to lift flooring or open a wall?
The survey starts with methods that avoid pulling things apart, selected for the problem and the building. Some findings may need targeted access to confirm them or to make a repair. Discuss the landlord's approval and the scope of any opening up before the work goes ahead.
Can we use the findings for the landlord's insurance claim?
ADI provides a survey report that can be shared with the landlord and insurer. Whether the policy covers trace and access, repairs or resulting damage depends on its terms and the insurer's decision. Check the insurer's requirements before authorising work; the report does not guarantee a claim will be accepted.
How much will the survey cost, and when can an engineer attend?
Call with the postcode, property type, symptoms and access details. The office will confirm the appropriate survey, a quote and current availability for that address. Agree the survey scope and any repair quotation before the work goes ahead.
Discuss a Greater London property with ADI
Have the postcode, the tenant's description of the problem and the access contact ready. The office can explain the survey, provide a quote and confirm current availability.
- Monday to Friday, 7:30am to 6:30pm
- Calls reach ADI Leak Detection's office in High Wycombe. Engineers cover England, Scotland and Wales.