Leak Detection in Tower Hamlets, London

Canary Wharf buildings typically operate with building management companies and concierge teams who control access to plant rooms, communal areas, and service risers. Our engineers are experienced in coordinating with on-site management before attending, and we can liaise directly with building teams to arrange access to shared infrastructure relevant to the investigation. Within individual apartments, we use thermal imaging cameras and acoustic listening equipment to identify leak sources without opening walls unnecessarily. For underfloor heating systems — common in E14 new builds — we carry out pressure tests and thermal surveys to pinpoint the fault precisely. A written report is produced on the day and is accepted by building management and insurers alike.

Underfloor heating systems in Docklands and Canary Wharf new builds — particularly those constructed from the early 2000s onwards across E14 — are pressurised wet systems embedded within the floor screed. When a leak develops, pressure drops gradually but no water is immediately visible, making them difficult to locate without specialist equipment. Our engineers carry out a pressure test first to confirm an active leak within the circuit, then use thermal imaging cameras to scan the floor surface while the system is running. Heat loss from the damaged section creates a detectable temperature variation, allowing us to identify the fault location precisely. The screed is opened only where the leak is confirmed, not across the entire floor area.

Victorian terraces in Bethnal Green and across E2 were typically built with lead or iron supply pipes and original clay drainage, much of which has been partially updated during conversion to flats but not always fully replaced. Hidden leaks in these properties tend to occur at joints where old pipework meets newer plastic fittings, or within the original soil stack. Our engineers use acoustic detection equipment to listen for water escaping under pressure, and tracer gas for pipes where flow is too low for acoustic methods. We work through each flat methodically to establish which supply or drainage run is responsible before any access is made to walls or floors, keeping disruption to a minimum across all occupied units.

A trace and access investigation establishes the location of a concealed leak and documents the access required to reach the damaged pipework for repair. The written report we produce details the investigation method, equipment used, the fault location, and the nature of access needed. This document is formatted to meet the requirements of building and home insurance policies — the vast majority of UK household insurers accept reports produced by WaterSafe registered engineers, which all of our operatives are. In Tower Hamlets, trace and access claims are common across the full range of property types, from converted terraces in Stepney to Canary Wharf apartments. Our NoFindNoFee guarantee means no charge applies if we cannot pinpoint the source.

The Thames-side areas of Tower Hamlets — including Wapping, Shadwell, and parts of Limehouse in E1 — sit on historic clay ground with a water table that can be relatively shallow, particularly during wet months. This can affect acoustic leak detection outdoors, as ground moisture carries sound and makes it harder to isolate an active pipe leak from natural groundwater movement. Our engineers address this by combining acoustic surveying with tracer gas testing in these locations. Tracer gas diffuses through both dry and saturated soils and is unaffected by background moisture, making it particularly reliable for pipe investigations close to the river. We will always advise on the likely confidence level before any investigation begins.