If you’re seeing damp, staining, recurring mould, or a pressure drop and can’t pinpoint the cause, leak detection helps clarify what’s happening and what to do next.
A quick phone call helps us understand what’s happening and the safest next step.
We pinpoint leaks accurately without lifting floors or damaging walls.
Our Trace & Access reports are accepted by all major insurance providers.
Fast attendance times for all Belfast postcodes to stop damage quickly.
Fixed prices for leak detection with no hidden fees or surprises.
WaterSafe & WIAPS registered engineers for complete peace of mind.
NI Leak Detection provides leak detection services in Belfast for residential and commercial properties. We assess reported issues, locate the source of leaks, and explain findings and options. We help control water loss and support decisions on repair and next steps.
When the source isn’t obvious, the main risk is ongoing hidden damage and repeat call-outs without a clear answer. Leak detection helps you make the next decision with confidence.
Reduce guesswork by narrowing down the most likely source of the leak.
Limit ongoing damage by finding the cause sooner.
Support a targeted repair plan and complete repairs.
Provide clear documentation for next steps (including Trace and Access report)
Specialist Leak Detection Services delivered with a clear, structured approach: what we test and why.
Qualified plumbing expertise, so we can locate the leak and carry out repairs where appropriate and agreed (domestic and residential work).
We can work alongside plumbers and heating & plumbing engineers where needed, especially when the source isn’t obvious.
Non-Destructive Leak Detection approach where possible: in many cases, structured testing helps reduce unnecessary opening-up (subject to access and conditions).
Trace and Access reporting available where needed.
We provide service delivery across Northern Ireland, including Greater Belfast.
Our structured approach helps you understand what's happening and what comes next.
We'll understand your symptoms and the areas affected to prepare properly.
We'll conduct structured testing to narrow down the source.
We'll explain what's likely happening and where the issue is located.
We'll discuss repair options and complete repairs where appropriate and agreed.
You'll receive photos, a written summary, and a Trace and Access report if requested.
Including any follow-on work that may be needed, such as optional damage restoration if you want us to help, or support for your chosen contractor.
Some access may be needed depending on where the leak is. We aim to keep disruption to a minimum where possible. If reinstatement, restoration, or repairs after access are required, that may involve additional works depending on the situation.
We choose methods based on symptoms, access, and the type of pipework, to keep the investigation focused:
Thermal imaging using thermal imaging cameras (often infrared) to identify unusual temperature patterns where relevant (for example with hidden leaks or heating issues). We may use FLIR thermal imaging cameras.
Acoustic leak tracing using acoustic sensors, microphones, and ultra-sensitive microphones to help pinpoint leak noise where conditions allow.
Tracer gas using Tracer Gas Technology (hydrogen/nitrogen) to help confirm the leak point in certain situations.
Moisture mapping using a moisture meter to understand how moisture is travelling through materials (without over-stating precision).
Inspection cameras and other cameras to check voids and hard-to-see areas; we may use RIDGID inspection cameras.
Pressure tests where appropriate, to help confirm a suspected leak on a section of pipework.
If you’re seeing any of the following in your Belfast property, it’s worth getting the source checked rather than waiting for it to worsen:
Persistent damp patches or staining on ceilings/walls
Mould that keeps returning in the same area despite cleaning and ventilation
Musty smell or a damp feel in a room
Boiler pressure repeatedly dropping (sealed systems)
Reduced water pressure or intermittent air in pipework
Wet or soft flooring, warped skirting, bubbling paint
Hidden water leaks often show up in a few common places:
Bathroom & shower leaks (including leaks tracking along grout lines)
Central heating leaks around radiators or heating systems;
Underfloor heating leaks;
Mains water leaks affecting water pipes and incoming supplies;
Underground Leak Detection where buried pipework is suspected;
Sudden failures that may need burst pipe repair and urgent isolation support.
If you’re on a meter: unexpected usage increases or meter movement when everything is off can indicate an ongoing leak.
Health and safety note: If water is near electrics, or there’s active water ingress, prioritise safety and contact a professional.
Trace and Access refers to locating the leak and accessing the area to complete the repair, with documentation of what was found and what work was done.
Insurer-Ready Reports: Clear, fact-based documentation with photos of the leak and the access work.
Evidence of Damage: A detailed record of what we found, helping you substantiate your claim.
Itemised breakdowns where needed to help you evidence the work.
While we are not insurers or claims handlers, our documentation can help support your insurance claim process.
Common questions about our leak detection service in Belfast
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We cover all Belfast areas, including:
- South Belfast (Malone, Stranmillis, Ormeau);
- East Belfast (Ballyhackamore, Dundonald, Belmont);
- West Belfast (Andersonstown, Falls, Shankill);
- North Belfast (Cavehill, Fortwilliam, Ardoyne);
- Greater Belfast suburbs (Lisburn, Holywood, Newtownabbey).
We also provide Leak Detection Services across Northern Ireland.
If you’re seeing damp, staining, recurring mould, or pressure loss and the source isn’t clear, the safest next step is to talk it through and arrange a visit if needed.
Call to get clear options for finding and fixing your leak.
We’ll explain the approach and likely next steps on the phone.
