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B. KEENAN / ADVICE & CASE STUDIES

Leak Detection Bangor | Hidden Heating Pipe Leak

October 5, 2026

Leak Detection Case Study

Leak Detection in Bangor – Hidden Heating Pipe Leak Behind Skirting Board

Our Bangor client’s heating system was continually losing pressure. With no obvious visible leak, our investigation traced the problem to a small leak in heating pipework concealed behind a skirting board.

● Bangor, County Down

Leak detection Bangor case study showing hidden heating pipe leak behind a skirting board

The concealed heating pipe behind the skirting board at our client’s Bangor property. Corrosion around the pipework indicated that water had been escaping in this area.

Case Study at a Glance

LOCATION:
Bangor, County Down
INITIAL PROBLEM:
Central heating system continually losing pressure
SOURCE:
Small leak in central heating pipework
LEAK LOCATION:
Concealed behind a skirting board

The Problem: Heating System Losing Pressure in Bangor

A homeowner in Bangor contacted B Keenan Heating and Plumbing after noticing that their central heating system was continually losing pressure.

The system required repeated topping up, but there were no obvious signs of a leak around the boiler, radiators or other visible sections of pipework.

Persistent pressure loss can indicate that water is escaping somewhere within a sealed heating system. When the affected pipework is concealed, professional leak detection can help identify where the problem is occurring.

Our Leak Detection Investigation

We carried out a targeted heating leak detection investigation, beginning with the accessible components of the system before focusing on areas where pipework was concealed.

Small heating leaks can be particularly difficult to identify. Even a relatively small amount of escaping water can cause a noticeable drop in system pressure without producing an immediately obvious damp patch.

Our investigation eventually led us to a section of heating pipework running behind a skirting board.

By narrowing down the location before carrying out access work, we could concentrate our investigation on the affected area rather than unnecessarily disturbing other parts of the Bangor property.

What We Found

A Hidden Heating Pipe Leak Behind the Skirting Board

After accessing the area, we discovered a small leak on the copper heating pipe concealed behind the skirting board. The green corrosion visible around the pipework was an indication that moisture had been present in the area.

The Cause of the Heating Pressure Loss

Water was slowly escaping from the heating circuit through the affected section of concealed pipework.

Although this was not a major burst, a small hidden leak can be enough to make a sealed central heating system continually lose pressure.

Because the pipe was concealed behind the skirting board, there was little visible evidence to point the homeowner towards the source of the problem.

Continually topping the boiler pressure back up would therefore not have addressed the underlying fault.

The Solution: Targeted Leak Detection and Repair

Once our leak detection investigation had identified the correct area, we gained the necessary access to the concealed heating pipework.

The affected section of pipe was repaired before the heating system was refilled and tested.

We then checked that the system was able to maintain pressure correctly and that there were no further signs of water escaping from the repaired area.

Accurately locating the leak meant that access work could be concentrated on the affected section, helping to minimise unnecessary disruption to the client’s home.

The Result

✓
Source of the heating pressure loss identified

✓
Hidden leak traced behind the skirting board

✓
Affected heating pipework accessed and repaired

✓
Heating system refilled and tested

✓
Heating system able to maintain pressure correctly

✓
Targeted leak detection helped minimise unnecessary disruption

Leak Detection Advice: Heating Losing Pressure With No Visible Leak?

This case demonstrates an important point: you don’t need to see water for your heating system to have a leak.

Central heating pipes can be concealed behind skirting boards, beneath floors, inside walls and behind kitchen units. A small leak in any of these locations can cause persistent boiler pressure loss before obvious water damage appears.

If your heating system repeatedly requires topping up, professional leak detection can help establish whether a concealed leak is responsible and identify the area requiring repair.

Professional Leak Detection in Bangor

B Keenan Heating and Plumbing provides professional leak detection in Bangor, County Down, helping homeowners locate concealed leaks in central heating systems, mains water supplies and hidden pipework.

Whether a leak is beneath a floor, behind a wall, concealed by kitchen units or hidden behind a skirting board, our aim is to accurately locate the source before carrying out the necessary repair.

If your boiler or central heating system keeps losing pressure, a hidden leak may be responsible even when there are no obvious signs of escaping water.

Looking for Leak Detection in Bangor?

If your heating system keeps losing pressure and you can’t find an obvious leak, contact B Keenan Heating and Plumbing for professional leak detection in Bangor and the surrounding areas.


Contact B Keenan Heating & Plumbing

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Barry Keenan Plumbing & Heating
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