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Slab Leak Detection in Belfast – Find Leaks Under Concrete Floors

We locate hidden leaks under concrete or tiled floors with non-invasive tools — saving you from costly repairs and unnecessary damage.

5-star reviews • Insurer-approved reports • Local Belfast plumbers

What Is a Slab Leak?

A slab leak is simply a water leak beneath a concrete floor or foundation. In Belfast homes, this usually means pipework hidden under tiled or solid floors.

Common signs include:
  • Damp flooring or rising moisture patches;
  • Warm or cold spots on tiled areas;
  • Cracked or lifted tiles;
  • Boiler pressure dropping with no visible leak;
  • Higher water bills than normal.
👉 Most homeowners just call it a leak under the floor. Insurers and plumbers use the term slab leak.

Why Slab Leaks Are Serious

Slab leaks can stay hidden for weeks or months, causing serious damage:

  • Water spreads under floors and weakens structures;
  • Flooring, plaster, and skirting boards become saturated;
  • Repairs get expensive the longer the leak continues.

Belfast’s older housing stock, solid floor construction, and underfloor heating systems make slab leaks more common than many realise.

The good news: with the right tools, we can locate the leak precisely and repair it without tearing up your entire floor.

How We Detect Slab Leaks in Belfast

We use specialist, non-invasive equipment to pinpoint leaks quickly:

1. Assessment: we discuss symptoms like damp patches or pressure loss
2. Non-invasive testing: acoustic sensors, thermal imaging, tracer gas
3. Pinpoint location: the exact spot confirmed beneath the floor
4. Minimal access: only one tile or a small section lifted if needed
5. Repair: pipes repaired or replaced the same day where possible
6. Insurer report: photos, test results, and repair notes included

💡 We lift only where needed — never whole floors.

Benefits of Professional Slab Leak Detection

  • ✅ Protects your property from major water damage;
  • ✅ Avoids unnecessary excavation of floors;
  • ✅ Cuts repair costs with targeted fixes;
  • ✅ Insurer-approved Trace & Access reports provided.

Slab Leak Examples in Belfast

In East Belfast, a family noticed warm patches on their tiled kitchen floor. Our engineers used thermal imaging to confirm a heating pipe leak under the slab. Only one tile was lifted, the joint was replaced, and the system pressure-tested. The £1,900 cost was reimbursed under the homeowner’s Trace & Access cover.
“They found a leak under our kitchen floor with no disruption. Just one tile lifted and repaired the same day.” – Mike, Ballyhackamore
“The slab leak report was accepted by our insurer first time. Highly recommend.” – Martina, North Belfast
Call 028 9507 1126

FAQs – Slab Leak Detection Belfast

A slab leak is a water leak under a concrete floor or foundation. In Belfast homes, it usually means leaks beneath tiled or solid flooring.

Suspect a Leak Under Your Floor in Belfast?

We use advanced tools to locate slab leaks with minimal disruption. Our insurer-approved reports help you recover costs quickly.
Request a Free Quote Today!
Call 028 9507 1126
⭐ Local plumbers • Non-invasive floor leak detection • 5-star reviews

Coverage Across Belfast

We provide slab leak detection across all areas of Belfast:

- 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 Slab Leak Detection Services across Northern Ireland.
Our engineers are local, and we also cover nearby towns and cities including:

- Leak Detection Bangor;
- Leak Detection Londonderry;
- Leak Detection Lisburn;
- Leak Detection Newtownabbey.

Call us to find out how we can help you today.


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Leak Detection Northern Ireland

NI Leak Detection provides slab leak detection for pipes under concrete floors.
We pressure test circuits, deploy tracer gas, listen with acoustic tools, and map routes to a dig point.
We mark the dig point, reduce break-out, and supply a report for repair.

Contact Us 24/7

Booking FormTel: Call 028 9507 1126Email: info@nileakdetection.co.ukAddress: 2 Mount Oriel, Saintfield Road, Belfast, BT8 7HR

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Disclaimer

NI Leak Detection, part of the PCLA group.
Property Claims Loss Assessors Ltd (PCLA) are authorised and regulated by the Financial Conduct Authority. FRN 933781.

NI Leak Detection is a trading name of Property Claims Loss Assessors LTD. By using the services of NI Leak Detection, you acknowledge and agree that all leak detection services are provided by independent third-party contractors introduced to you by NI Leak Detection.
NI Leak Detection acts solely as an introducer and does not supervise, manage, or control the services performed by third parties. All payments for services must be made directly to the respective third-party contractors. NI Leak Detection receives no commission or financial reward for providing this introduction service.
NI Leak Detection disclaims any and all responsibility or liability for the quality, workmanship, or suitability of services provided by third-party contractors.
To the fullest extent permitted by law, NI Leak Detection shall not be held liable for any loss, damage, or defects arising out of or in connection with the services provided by third-party contractors. Any concerns, disputes, or claims must be addressed directly to the contractor responsible for performing the services.
NI Leak Detection makes no representations or warranties, express or implied, regarding the services offered by third-party contractors, including but not limited to warranties of merchantability, fitness for a particular purpose, or quality of work.
This disclaimer is governed by and construed in accordance with the laws of the United Kingdom.