Client Location – Ballynahinch, County Down
The Problem
A homeowner in Ballynahinch contacted B Keenan Heating and Plumbing after experiencing ongoing pressure loss in their heating system. The system required frequent topping up, but there were no visible signs of leaks around the boiler, radiators, or exposed pipework.
With no obvious cause, the client suspected a hidden issue and requested professional leak detection to identify the problem before it worsened.
Leak Detection Investigation
We carried out a structured heating system leak detection process, starting with checks on all visible components of the system. As no faults were found, we focused on the possibility of concealed pipework leaks beneath the floors.
Using targeted leak detection methods and monitoring system pressure behaviour, we were able to narrow down the source of the issue to the hallway area. This allowed us to pinpoint the leak location accurately without unnecessary disruption.


The Cause: Leaking Fitting Under the Floor
Upon accessing the pipework beneath the hallway floor, we identified a leaking fitting within the heating system. Although the leak was not visible from above, it was enough to cause continuous pressure loss.
Hidden leaks like this are a common cause of heating system issues and can remain undetected for long periods without professional leak detection.
The Solution
Once the leak was confirmed, we isolated the system and replaced the faulty fitting with a secure, reliable connection. Care was taken to minimise disruption to the property during the repair.
Following the repair, we carried out full system testing and final leak detection checks to ensure the system was fully sealed and holding pressure correctly.
The Outcome
- Hidden leak successfully detected beneath hallway floor
- Faulty fitting replaced and secured
- Heating system pressure fully restored
- Further damage prevented through early leak detection
The client was relieved to have the issue diagnosed and resolved quickly, restoring normal heating system performance.
Key Takeaway: Hidden Leaks Often Sit Beneath Floors
Heating systems that lose pressure often have concealed leaks beneath floors or behind walls. Professional leak detection is essential to accurately locate and repair these faults before they cause more serious damage.
B Keenan Heating and Plumbing provides fast and reliable leak detection services across Ballynahinch and surrounding areas.
If your heating system is losing pressure, contact us today for expert leak detection and repair.