ADI’s engineers locate hidden leaks using tracer gas, acoustics and thermal imaging. We work around your guests and provide a report for your insurer.
Explore the pipework in guest bathrooms, plant rooms, pools and hotel grounds to see where leaks can occur.
What you notice. Stains on top-floor ceilings after heavy rain, damp around parapets, plant screens and rooflights.
How it is found. Moisture mapping and thermal imaging inside; a thermal drone, tracer gas or smoke testing on the roof itself. ADI locates roof leaks and reports them. The repair is a roofer's job.
How we investigate roof and façadeWhat you notice. Stacked bathrooms share risers (the vertical pipe runs), so a leak on the fourth floor shows up on the second. Ceiling drips in the room below, soft flooring, a musty smell that housekeeping keeps reporting.
How it is found. Moisture mapping, thermal imaging, dye tests on showers and baths, an endoscope camera into the void, and pressure testing of the hot and cold circuits.
How we investigate guest bathrooms and risersWhat you notice. Floor drains, appliance connections and hot-water runs under a concrete screed. Water at the base of walls, wet coving, a gully that never dries out.
How it is found. Drain camera surveys, dye tests, and acoustic listening along buried hot-water lines.
How we investigate kitchens and laundriesWhat you notice. Boilers, hot-water cylinders, pumps and booster sets on one floor. A boiler that loses pressure, a meter that turns overnight, a drip nobody can find.
How it is found. Pressure testing circuit by circuit, thermal imaging of flow and return pipework, acoustic listening.
How we investigate plant roomWhat you notice. Pool shells, balance tanks and filtration pipework lose water quietly. Daily top-ups, a wet plant-room floor, chemical use that keeps climbing.
How it is found. Pressure testing of every line, dye testing, tracer gas, and a diver where the shell needs inspecting. ADI is a SPATA-approved contractor.
How we investigate pool and spaWhat you notice. Long supply runs to car parks, outbuildings and garden taps. Lush green patches in dry weather, a booster pump that runs more than it should, pressure that drops when the pump stops.
How it is found. Acoustic ground microphones, leak-noise correlation, tracer gas and a trace wire to find the pipe, then a targeted excavation.
How we investigate grounds and incoming mainsADI’s engineers combine these seven methods to locate hidden leaks before opening the affected area.
A safe, non-flammable hydrogen and nitrogen mix is put into the pipe or void. It escapes at the leak, rises through the floor or wall, and a detector picks it up at the surface.
In a hotel: Buried supply runs, heating pipes under screeds, pool lines and flat roofs.
Ground and pipe microphones amplify the sound of water escaping under pressure. The loudest point is the leak.
In a hotel: Car parks, service yards, corridors over buried pipework.
Two sensors clamped to a pipe record the leak noise from either side; the correlator works out how far along the pipe the leak sits.
In a hotel: Long water mains and supplies to outbuildings, where listening alone is slow.
A thermal camera shows warm pipes and cold, wet patches behind finished surfaces. It scans large areas quickly and is always paired with another method to confirm.
In a hotel: Heating runs in guest floors, ceilings under bathrooms, flat roofs by drone.
A camera on a flexible tube goes through a small, easily made-good hole to look inside a void, a bath panel or a boxed-in riser.
In a hotel: Confirming a leak behind tiling or panelling before anything larger is opened.
Pin and pinless meters read moisture in walls, floors and ceilings. Plotted room by room, the readings show where the water has travelled and where it started.
In a hotel: Deciding which of several stacked bathrooms is the source.
Each circuit is isolated and held under pressure. A drop confirms a leak on that circuit; a steady gauge rules it out, and proves a repair afterwards.
In a hotel: Plant rooms with several circuits, and proving a repair before the room goes back into service.
Three ADI hotel and guest-house investigations, with the findings and repair outcome recorded for each job.
Weeks from reopening, the hotel's boosted supply to two garden taps lost pressure the moment the pump stopped. We traced it to a failed 25 mm fitting under a garden bank, replaced it and retested.
Water was dripping through two ceilings in a three-storey guest house with a complicated tank-fed system. Thermal imaging and an endoscope led to an electric shower connection on the top floor.
A detached hotel was losing an estimated 17 litres of water an hour. With the stopcock closed the meter stopped, so the loss was inside. A room-by-room inspection found the causes.
Tell us the postcode, what you have noticed and what kind of building it is. The office team will ask about occupancy, plant and access, and give you current availability and a quote.
Engineers need to get into every relevant area, including plant rooms, locked rooms and any flat or unit sharing the supply. Parking close to the entrance matters: the equipment is heavy.
A risk assessment and method statement are supplied for commercial work. The engineer walks the building with your maintenance contact and looks at the meter, stopcocks and plant first.
Pressure testing separates the circuits. Thermal imaging, moisture mapping, acoustics, tracer gas and cameras then close in on the leak. Some tests need the water or heating off for a short while.
A report with photographs, findings and recommendations, written so it can go straight to an insurer or a contractor.
Pipework, drainage and pool leaks can be quoted and repaired, often on the same visit, and pressure tested afterwards. Roof and building-fabric leaks are located and reported for a roofer to fix.
Read moreHamaad from ADI was great. He was very thorough with his work and communicated everything very clearly. He was able to locate the leak and provided a detailed report that could be shared with my insurer. He went above and beyond to answer questions about my insurance claim from both me and my insurer. I'd highly recommend their services.
Read moreWe had a major water leak of approximately 220 litres per hour and, with a holiday booked only a few days later, we urgently needed someone to find and repair it. […] Frank arrived at our house. He was extremely polite, professional and clearly very experienced. He quickly set up the equipment, carried out a tracer gas test and pinpointed the leak to an area just outside our garage underneath the driveway. […] The whole job, from arriving at our house to finding and repairing a 220 litre-per-hour leak, was completed in around three hours.
Read moreCraig was punctual, knowledgeable, efficient and very tidy. This is a large property and he traced leaks and sources of damp in walls and in heating pipes under concrete floors.
Read moreRobert Gires attended our property and was extremely professional, knowledgeable and meticulous throughout the whole process. He carefully removed part of the kitchen cabinet to gain access, dug into the floor to properly investigate and assess the leak, and explained what he was doing along the way. What impressed me most was the care he took with our property. Once the investigation was completed, Robert put everything back in place neatly and left the area tidy.
ADI started in 2011 and has more than twenty-five leak investigation engineers across England, Scotland and Wales. Hotel groups can use one provider and one report format across their sites.
Nearly always. The methods are non-invasive: moisture mapping, thermal imaging, dye tests, tracer gas, acoustics and camera inspection narrow the leak to a small area before anything is opened. Some jobs still need targeted access to confirm or repair the fault, and no survey can promise zero disturbance in every building, but we work to keep that to a tile or a panel rather than a room.
The engineer works room by room and around your occupancy. Tell the office which rooms are let, which are out of order and when housekeeping is on the floor, and access is planned around that. Some tests need the water or heating off for a short period; we agree the timing with your maintenance contact first.
Call the office with the postcode and the office team will give you current availability. ADI has more than twenty-five engineers across England, Scotland and Wales, and hotels with water going where it should not are treated as urgent. We do not promise arrival times on a website; you get a real answer on the phone.
Pipework, drainage and pool leaks can be quoted and repaired, often on the same visit, and pressure tested afterwards. Roof and building-fabric leaks are located and reported for a roofer to fix. Repairs are charged separately from the survey and are quoted before any work starts.
The report is written for that purpose: photographs, findings and recommendations, and for commercial work a risk assessment and method statement. Insurers describe this work as trace and access. Policies differ on what they cover, so ask your insurer what they need before the visit and tell us so the report answers it.
Someone who knows the building: where the meter, stopcocks and plant are, and which rooms are affected. Access to every relevant area, including plant rooms, locked rooms and any neighbouring unit on a shared supply. Parking within about 100 metres of the entrance for the equipment. If the pool is involved, its current level and how fast it is dropping.
Describe what you have noticed, the type of building and the postcode. The office team will talk through the survey, give you a quote and current availability, and book the engineer.
