Why is my boiler making noises?


Domestic boilers play a crucial role in providing warmth and comfort within our homes. However, when strange noises emanate from our trusty heating systems it can be cause for concern.

This blog aims to assist homeowners to identify common issues and offers tips on maintaining boiler efficiency.

Our friendly gang of plumbers has over 19 years’ experience and has heard every type of bang and whistle noise going! We’re confident we can help to resolve yours:

Identifying the sound

Banging & Popping:

Loud abrupt noises often indicate a build-up of limescale or mineral deposits within the boiler’s heat exchanger. As water flows through the system, it encounters these deposits, leading to overheating and noise.

Whistling & Screeching

High-pitched noises are commonly associated with issues in the boiler’s pressure relief valve or a faulty pump. A damaged valve or an incorrect pressure setting can cause steam or water to escape, resulting in these sounds.

Gurgling & Bubbling

If you hear gurgling or bubbling noises, it is likely that there is trapped air within the system. Air pockets can impede proper water circulation and disrupt the boiler’s functionality.

Maintenance & Solutions

Regular servicing

Scheduling annual maintenance by a certified engineer from Platinum Plumber can help prevent boiler issues. During servicing, professionals will clean components, identify potential problems, and ensure optimal performance.

Bleeding radiators

Trapped air can lead to gurgling noises and reduce the efficiency of your heating system. Bleeding the radiators by using a bleed key to release the trapped air can resolve this issue.

Descale the heat exchanger

Limescale buildup can be mitigated by descaling the heat exchanger. Consult your boiler’s manual or seek professional assistance to ensure safe and effective descaling.

Check the Pressure Relief Valve

Whistling or screeching noises can be caused by a faulty pressure relief valve. If the valve is damaged, it may need to be replaced by a qualified technician.

Insulate pipes

Noisy boiler pipes can be dampened by insulating them. This reduces the vibrations that contribute to sound transmission and creates a quieter heating system.

Maintain water pressure.

Low water pressure can result in noisy boilers. Check the pressure gauge regularly and follow the manufacturer’s instructions to maintain the correct water pressure.

Professional help

If the noise persists or you are worried in any way about the boiler, it is recommended to contact a professional heating engineer, such as Platinum Plumbers, to diagnose and address the issue as soon as possible.

Identifying the source of noises in your domestic boiler is essential for ensuring its optimal functionality. By understanding the common causes of these noises and implementing proper maintenance techniques, homeowners can enjoy a quieter and more efficient heating system. And you’ll get a better night’s sleep!

2023-05-29T11:51:33+00:00 May 29th, 2023|