Plumbing & Heating and Water Mains Specialist · Based in Giffnock, Renfrewshire
Hamaad Janjua is a leak detection engineer specialising in identifying hidden water leaks using thermal imaging, acoustic listening equipment, and tracer gas.
CIPHE accredited
WIAPS member
Hamaad is part of ADI Leak Detection — the UK's leading leak detection specialist with 1,250+ five-star Trustpilot reviews, full CIPHE and WIAPS accreditation, and £5 million public liability insurance.
Hamaad has 10 years in plumbing and heating, 8 years in gas heating, and 3 years in specialist leak detection. He is Gas Safe Registered and holds City & Guilds qualifications, with particular expertise in water mains and domestic plumbing systems. That background in heating and pipework means he can read how a system is behaving, not just where it is wet.
Recent leak investigations carried out by Hamaad Janjua across central heating, water mains, underfloor heating and bathroom leak detection.
A property in G83, situated within a block of eight, was the subject of a complaint from the neighbour living directly below — a constant drip had developed into her hallway ceiling, pointing to an active leak somewhere within or beneath the upper flat. Leak found beneath hallway floor on stop valve, repaired.
A property in Carlisle with a combi boiler system was flagged for investigation after the water utility company reported excessive water usage, pointing to a leak somewhere within the property. Leak found beneath kitchen floor, damaged pipe section replaced.
Because the pressure loss was inconsistent and no obvious source could be identified by sight, a full central heating leak detection process was required to locate the fault. Leak found at radiator pipe connection in upstairs bedroom, repaired.
Real Trustpilot feedback from customers Hamaad has attended.
Hamaad's grounding is in domestic plumbing and heating — he has spent 10 years working on residential systems and 8 years specifically in gas heating before moving into leak detection. That hands-on experience with how systems are built and how they fail shapes the way he approaches an investigation. On a job, he works methodically through the likely causes before reaching for any single piece of kit. Away from work, he is mad about football.
Hamaad specialises in central heating leak detection, water mains leak detection, and underfloor heating leak detection, alongside bathroom plumbing, underground pipework, and drain leak investigation. He is particularly noted for water mains and domestic plumbing and heating work. Tracer gas, acoustic listening, and thermal imaging are the core methods he draws on across those specialisms.
Hamaad uses thermal imaging cameras to detect temperature variation caused by water escaping behind surfaces, which avoids unnecessary opening up of walls or floors. Acoustic listening equipment picks up the sound signature of a pressurised leak travelling through pipework or ground. Where those methods need supplementing, tracer gas testing, borescope cameras, and moisture meters are brought in to build a fuller picture.
Hamaad has 10 years in plumbing and heating, 8 years in gas heating, and 3 years in leak detection. He is Gas Safe Registered and holds City & Guilds plumbing qualifications, along with Water Bylaws Level 2, Solar Thermal, and Unvented Hot Water Tank qualifications. That combination of heating and water system credentials underpins his diagnostic approach on site.
Hamaad primarily works on residential properties, covering everything from houses with straightforward under-floor leaks to larger homes with more involved central heating or buried water mains supply pipes. His background in domestic plumbing means he is familiar with the way residential systems are laid out and where failures typically occur. He handles both the detection and, where needed, confirmation of what repair work is required.
If your water bill has risen without explanation, you can hear water running when everything is turned off, or you have damp patches appearing on floors or walls, an investigation is worth booking. The same applies to central heating systems that keep losing pressure or boilers that need topping up repeatedly. Call ADI Leak Detection on 0800 731 3843 to arrange an investigation — ADI will aim to assign Hamaad where he is available in your area.
Hamaad follows a consistent five-stage process on every visit. The approach is non-invasive and designed to isolate the fault before any disruption to your property.
Hamaad works across central heating, underfloor heating, water mains, bathroom plumbing, underground pipework, and drains.
His caseload covers both finding the leak and understanding what the wider system is doing — relevant given his depth of experience in domestic heating and plumbing.
Drain leak investigation and leak correlation are also part of his scope.
Hamaad covers a large part of Scotland and the north of England, working across areas including Aberdeenshire, Ayrshire, Fife, Lanarkshire, Perth and Kinross, the Scottish Borders, Stirling, and Cumbria, among others.
Hamaad primarily works on residential properties, from straightforward internal leaks behind walls or under floors through to water mains failures on buried supply pipes.
His background in domestic plumbing and heating makes him well suited to properties with more complex pipework arrangements.
He is particularly noted for water mains and plumbing and heating investigations.
Hamaad carries out leak detection surveys across North West & Scotland. His work includes domestic and commercial investigations involving central heating, water mains, underfloor heating, bathroom, and drain leaks.
ADI Leak Detection aims to provide next-day availability across the UK — call today for a quote.
