Commercial leak detection in West Midlands
A West Midlands commercial survey should separate the source of water from the damage it leaves behind. ADI investigates premises across Birmingham, Coventry and the Black Country. The Walsall shop case below used a controlled dye test to connect internal water damage to a defective roof area.

Areas we cover in West Midlands
- Birmingham
- Coventry
- Wolverhampton
- Dudley
- Solihull
- Walsall
- West Bromwich
- Smethwick
- Oldbury
- Wednesbury
- Stourbridge
- Halesowen
Map of West Midlands
Walsall: dyed water linked a roof defect to shop damage

A shop had water damage in its storeroom, toilet and kitchen beneath a flat roof. ADI recorded elevated moisture, although the thermal survey showed no anomalies. Inspection above found damaged or missing waterproof membrane, cracks and drainage details that allowed water to pool.
During a flood test with dye around the damaged membrane and dividing wall, coloured water appeared inside the storeroom after about ten minutes. A separate damaged ceiling area in the shop was also inspected, with membrane cracks found above; the report did not record a separate dye confirmation there.
The engineer recommended roofing and drainage-detail repairs. ADI did not carry out those building-fabric repairs, and the record does not establish their later completion.
Commercial water leak investigations in West Midlands
Start with the symptoms and the system involved. The survey scope should reflect how your building uses water.
Buried mains and shared supplies
Provide meter records and identify shared users. Testing must account for normal consumption before locating a suspected buried leak.
Water mains investigationsHeating circuits and concealed pipes
Share pressure records and accessible circuit boundaries. Agree plant-room access and any interruption to occupied units.
Heating and plant room leaksWashrooms and building water ingress
Record whether damp follows water use or rainfall. Supply, drainage and building ingress need different checks.
Roof and building ingress surveysEquipment for hidden commercial leaks
The Walsall investigation combined moisture readings, roof inspection and a controlled dye test.
- Moisture mapping
- Elevated readings identified the affected walls and ceiling, even though thermal imaging showed no anomalies.
- Roof inspection
- Visible membrane and drainage defects provided areas for controlled testing; visual damage alone did not prove every water path.
- Dye testing
- Coloured water reaching the storeroom connected that damage to the tested roof area. A separate shop ceiling remained a distinct finding.
Equipment narrows the investigation; further access can still be needed to confirm or repair a fault. Read about the survey and methods.

Support for commercial property teams
The building’s use matters as much as the leak location. These are examples of survey situations, not a list of local clients.
Offices and managed buildings
If several tenants share a building, record the affected rooms and identify who controls each part of the water system. Arrange access to the relevant units and service areas, and explain who can approve an isolation.
Retail parks and large-format stores
For shops and trading units, discuss safe access to sales areas and service yards. Identify isolation points and explain which supplies are shared before booking an investigation.
Hospitality, education and healthcare
If kitchens, washrooms or occupied rooms depend on the supply, explain which services must stay available. Share safeguarding, induction and access requirements before booking so the investigation can be scoped with your site contact.

Commercial leak investigations by ADI Leak Detection
Commercial Leak Detection, a specialist service from ADI Leak Detection. ADI started in 2011 and has more than twenty-five leak investigation engineers across England, Scotland and Wales, working in offices, retail premises, hotels and industrial buildings.
- £5 million public liability insurance. Engineers hold CSCS cards for work on construction sites.
- Accredited by CIPHE, WIAPS and WaterSafe for plumbing and water regulations, and a SPATA-approved contractor for pool work.
- Reports for facilities teams, property owners and insurers, with photographs, findings and recommendations.
- 4.7 on Trustpilot from 1600+ reviews, checked 15 September 2026.
ADI Leak Detection reviews on Trustpilot
Selected excerpts from five-star reviews of ADI’s wider service across the UK.
Review excerpt
Read the full review“Paul provided a fantastic service, got to the route cause very quickly and did a top job. Would highly recommend his work.”
Review excerpt
Read the full review“Outstanding service. If only all companies were as professional! A special shout out for Matthew who was amazing.”
West Midlands leak survey questions
Does this cover the county or the wider West Midlands region?
The West Midlands county comprises Birmingham, Coventry, Dudley, Sandwell, Solihull, Walsall and Wolverhampton. It is distinct from the wider West Midlands region. Provide the property postcode to confirm survey arrangements and availability.
Can a thermal survey miss evidence of a leak?
A thermal image records surface temperature differences. In the Walsall shop, no thermal anomalies were found, but moisture readings and a dye test provided useful evidence. No single reading should be treated as the whole diagnosis.
Does finding roof ingress include a roof repair?
ADI records the investigation and recommendations. Roofing and building-fabric repairs require the appropriate contractor and separate arrangements; the Walsall case does not document a completed repair.
What information is needed for a survey quote?
Provide the full postcode, property type, symptoms, previous investigations and access restrictions. Confirm the nominated site contact and who can authorise work. The office will discuss the scope, quote and current availability.
Discuss a leak in West Midlands
Have the West Midlands site address, symptoms and access details ready. Call ADI to discuss the survey scope, cost and current availability, including any restrictions on water or heating interruptions.
- Monday to Friday, 7:30am to 6:30pm
- Calls reach ADI Leak Detection's office in High Wycombe. Engineers cover England, Scotland and Wales.