Leak Detection in Ealing, London

Victorian terraces in Acton — many of which have been subdivided into flats along the W3 corridor — often retain original lath-and-plaster ceilings, period tiled floors and Edwardian cornicing that tenants and freeholders are rightly protective of. Clear Flow engineers carry thermal imaging cameras and acoustic listening devices to every survey, allowing us to identify the location of a leak within walls, ceilings and buried pipework before any investigative work begins. In the majority of Acton properties we attend, we can confirm the precise fault location without breaking into the building fabric at all. Where physical access is genuinely unavoidable, we scope the minimum possible opening, complete the required investigation and make good on departure. All findings are documented in a written report, which can be used for insurance submissions or landlord records.

Unexplained pressure loss in underfloor heating is one of the more frequent call-outs we receive from new-build developments along the Elizabeth line corridor in West Ealing (W13) and Southall (UB1, UB2). Our WaterSafe registered engineers begin by pressurising the circuit to confirm a fault is present, then deploy thermal imaging cameras to map heat distribution across the screed. Cold spots in the thermal image indicate where the pipe has fractured or developed a microleak. Where imaging is inconclusive — often in thicker screed or complex pipe layouts — we introduce non-toxic tracer gas to pinpoint the failure without excavating the full loop. The survey is entirely non-destructive and produces a written report suitable for submission to the developer or a structural warranties provider such as NHBC.

Trace and access is an insurance-backed process in which an engineer locates the source of a hidden leak and documents the access required to reach it. It is directly relevant to properties in Hanwell (W7), where the 1930s and 1950s council estate stock typically has pipework concealed within screeded floors, boxed-in voids and original service ducts that are not straightforward to investigate without specialist detection equipment. Clear Flow carries out trace and access surveys using thermal imaging, acoustic devices and tracer gas, then produces a written report specifying the fault location, the access method required and the extent of any observed damage. This report can be submitted directly to your home insurer. We cover all council and housing association properties across W7 and the surrounding Hanwell area, with same-day response where needed.

Damp patches on a ceiling in a converted or purpose-built flat are in most cases the result of a leak originating from a property above — whether from a bathroom, kitchen waste pipe, a pressurised supply pipe, or a failing overflow. In Ealing Broadway (W5), the large number of Edwardian semis converted into flats, alongside purpose-built apartment blocks, makes this a particularly common scenario. Clear Flow's ceiling leak detection service uses moisture mapping equipment and thermal imaging to establish the likely origin of the water without speculative cutting into ceilings. Once the source is pinpointed, we produce a written report identifying the cause and its location — which is essential when establishing liability between leaseholders or submitting a claim through a buildings insurer. Our NoFindNoFee guarantee applies to all ceiling leak investigations.

Clear Flow covers the full extent of the London Borough of Ealing, including the outer areas of Greenford, Perivale and Northolt within the UB6 postcode. These areas sit towards the western edge of the borough and border the London Borough of Hillingdon, but they fall within our standard response zone alongside UB1 (Southall) and UB2. Same-day appointments are available across UB6 as standard. Greenford and Northolt contain a mix of 1930s semi-detached housing and post-war council stock, where ageing mains supply pipes, deteriorating galvanised fittings and older central heating circuits are common causes of call-outs. If you have a suspected supply pipe failure or an active heating fault anywhere in the Greenford or Northolt area, call the team and we will confirm same-day availability and dispatch an engineer with all detection equipment on board.