
Client Location – Albany, Bangor, County Down
The Problem
A homeowner in the Albany area of Bangor contacted B Keenan Heating and Plumbing after experiencing persistent pressure loss in their heating system.
The system needed regularly topped up, but there were no obvious signs of water around the boiler, radiators or accessible pipework. When a heating system continually loses pressure without a visible leak, it can often indicate a problem with pipework or fittings concealed beneath floors, behind walls or within voids.
The client therefore required professional leak detection to find the source of the pressure loss.
Leak Detection Investigation
We carried out a systematic investigation of the heating system, checking the accessible components before focusing on areas where pipework was concealed.
Our leak detection process eventually traced the problem to pipework running through a hidden void within the property.
After gaining access to the void, we discovered the leaking valve shown in the photograph. Because of its concealed location, the client would have had no way of seeing the leak during normal use of the property.


The Cause: Leaking Valve Hidden in a Void
The valve within the heating pipework had developed a leak, allowing water to escape from the system.
Although the amount of water escaping may appear relatively small, even a slow leak can cause a sealed heating system to gradually lose pressure. Left unresolved, concealed leaks can also lead to damp, deterioration of surrounding materials and more extensive water damage.
This is precisely why unexplained heating pressure loss should not simply be dealt with by continually topping up the boiler.
The Solution
Once we had accurately located the source of the leak, we accessed the concealed pipework and carried out the necessary repair.
The heating system was then refilled and tested to ensure it was holding pressure correctly and that the leak had been successfully resolved.
By using targeted leak detection, we were able to identify the specific location of the problem rather than carrying out unnecessary exploratory work throughout the property.
The Outcome
- Hidden heating leak successfully located
- Faulty valve discovered inside a concealed void
- Leak repaired
- Heating system pressure restored
- Further water loss prevented
- Potential damage to surrounding areas reduced
The homeowner now has a heating system that can maintain the correct pressure without requiring repeated topping up.
Heating System Losing Pressure? There Could Be a Hidden Leak
If your boiler pressure continually drops but you cannot see any water, don’t assume there isn’t a leak. Heating pipework frequently runs beneath floors and through walls and voids, meaning a fault can remain completely hidden.
Professional leak detection in Bangor can help locate these concealed problems accurately, allowing the correct repair to be carried out with as little disruption as possible.
B Keenan Heating and Plumbing provides professional leak detection across Bangor, County Down and surrounding areas, locating leaks in central heating systems, concealed pipework and mains water supplies.
If your heating system keeps losing pressure, contact B Keenan Heating and Plumbing for professional leak detection and repair in Bangor.
