Noisy Extractor Fans: Identifying and Solving Common Noise Issues

So, you’re hearing a rattle or a clonk and think, “What on earth is going on with my extractor fan?” Don’t worry, you’re not alone. Noisy extractor fans can be a common problem in homes and offices alike. It's true that any fan is going to make some noise. The motor and fan blades naturally create sound, and in a tiled bathroom, that fan noise can feel even louder.

Axial extractor fans usually have noise levels between 35-45 dB, and centrifugal fans are a bit louder, typically ranging from 40-55 dB. The good news? Our extractor fans are much quieter, with noise levels between 14-50 dB. We've got a "silent exactor fans" collection too, perfect if you're all about peace and quiet. Plus, we measure all fans using a standard test from 3 metres away, so you know exactly what to expect. Keep this in mind when comparing specs!

Want to know how loud is a decibel is ? Check out our article to put you in the know. 

However if your fan noise has become much more noticeable or there is a "clonking " sound, it might be time to investigate. What causes the extractor fan to become noisy?  Well, there are a few potential causes that might be contributing to your extractor fan noise. Let's take a look at each one and explore how to fix it.

Fan blades: Over time, dust and debris can pile up on your fan blades, making them spin unevenly and creating an annoying noisy extractor fan. The fix is super simple—just grab a damp cloth or brush and give the blades a quick clean to get rid of the build-up. 

Motor :  The motor is the heart of your extractor fan, and if it's not functioning properly, it can cause excessive fan noise. One common issue is that the bearings in the motor may become worn out or damaged over time, resulting in a grinding or rattling sound. In this case, it's best to call a professional for repairs or replacement. Most domestic extractor fans are cost-effective, so it may be worth considering replacing your current fan, depending on your specific needs.

Ducts: If your extractor fan is connected to ductwork, there could be an issue with the ducts. For example, if the duct is bent or damaged, it can restrict airflow and cause the fan to work harder, resulting in more noise. Make sure to check your ducts and repair or replace them as needed.

Mounting: Sometimes, the way your extractor fan is mounted can cause noise. If it's not installed properly or is loose, it can vibrate and create a rattling sound. Double-check the mounting and make sure all screws are securely tightened.

For fans that produce excessive noise, a quick fix or a bit of maintenance can do the trick. For others, it might take a little more effort—like figuring out the issue yourself or calling in a pro to either replace your fan or check out the motor and ductwork.

We’ve got fans from top brands like Manrose, Xpelair, Devola and Vent-Axia, plus all the accessories you need for a complete ventilation setup. And the best part? We offer free delivery, so you can shop with confidence and enjoy hassle-free performance.

Looking for more information? Check out our extractor fan buying guide to learn how to choose the right model and where to install it.

Our guide, How a Wall Mounted Extractor Fan Works breaks down the best rooms to use one in and shares some handy tips for choosing the perfect fan.