Leak Detection Greenwich

Same-day appointments are usually available in Greenwich, and next-day almost always. If water is actively escaping, tell us when you book. Live leaks are prioritised and we can talk you through isolating the supply while an engineer travels.

Not on a leak arising within your own property that we cannot find: in Greenwich that detection fee is waived. Trace it instead to a neighbour's pipework, a shared riser or the water main beyond your boundary and the fee stands, because that is a located leak, and it is the finding that moves the repair bill off you.

Yes. Trace and access reports documenting the cause, precise origin and affected areas are available for every Greenwich detection visit, typically within 48 hours. They are structured the way UK loss adjusters expect.

All of it, including Greenwich, Woolwich, Eltham, Charlton, Blackheath. We cover every London borough, so coverage never depends on which side of a postcode line you live.

By exploiting the fact that they respond to different things. A joint sealant failure is rainfall driven and wind direction sensitive, so ingress is logged over a period against weather data and the internal moisture is re read after dry spells. A charged pipe is indifferent to weather and will keep wetting through a dry fortnight. Alongside that the water is sampled and tested for chloride and conductivity, since rainwater that has run across a concrete panel face carries a very different signature from treated mains water. The supply and heating serving that dwelling are separately isolated and pressure decay tested, so the plumbing can be positively excluded rather than merely thought unlikely.

It makes access easier and location harder. Because the historic masonry could not be chased, services typically sit in boxed ducts and in floor voids formed above the original structure, so a failure is reachable without touching protected fabric. But the duct then acts as a channel, and water can run several metres along it before it emerges, which means the wet ceiling is frequently nowhere near the failed joint. The approach is to open the duct at defined intervals, moisture read inside at each point to build a gradient, and follow the gradient upstream. Thermography through the duct casing supports this where the run is hot, and none of it requires disturbing the listed envelope.

A dense concrete panel holds a great deal of water and releases it slowly, so a period measured in weeks rather than days is normal, and forcing it with heat alone tends to drive moisture deeper before it leaves. Effective drying needs three things together: dehumidification to lower the vapour pressure of the room air, air movement across the wet surface so the boundary layer is continuously replaced, and enough background heat to keep the process running. Verification is by measurement, not appearance. A hygrometer reading taken in a sealed hole drilled into the substrate gives the equilibrium humidity within the material, and that is the figure to watch falling over successive visits. Redecorating over a substrate that has not reached equilibrium simply traps the moisture behind the new finish.

Almost always the threshold detail, and it is one of the more frequent defects in recent apartment construction. A balcony has to shed water away from the door and drain it clear, and that depends on the fall of the deck, the capacity and position of the outlet, the upstand at the threshold and the integrity of the waterproofing where it turns up behind the frame. Any of those being wrong produces ingress at the door in driving rain and nowhere else. It is proved by flood testing the balcony with the outlet temporarily restricted and observing internally, and by correlating the ingress with wind direction as well as rainfall. Where the block is still within a structural warranty period, a threshold defect of this kind is frequently a warranty matter rather than a repair.