Electrical Buzzing & Humming Noises

Strange buzzing, humming, or vibrating sounds from your electrics.

Fuse Box Buzzing Or Humming

Your consumer unit or fuse box is making a buzzing or humming noise that was not there before.

High Risk

Dimmer Switch Buzzing

Your dimmer switch makes a buzzing or humming noise, especially when the lights are dimmed.

Low Risk

Electrical Buzzing Sound In Walls

You can hear a buzzing, crackling, or humming sound coming from inside a wall. This could be harmless mains hum or a sign of dangerous electrical arcing that needs urgent attention.

High Risk

Light Fitting Buzzing

Your ceiling light or light fitting is making a buzzing or humming noise.

Low Risk

Socket Making A Buzzing Noise

A plug socket in your home is making a buzzing, crackling, or humming noise.

High Risk

Electrical Humming Noise At Night

You can hear an electrical humming or droning noise at night that is not there during the day.

Medium Risk

Mains Hum In The House

There is a persistent low-frequency hum or drone throughout your house that seems to be electrical.

Low Risk

Related Cost Guides

Electrical Fault Finding Cost

Electrical fault finding in the UK typically costs between £80 and £250, covering a diagnostic visit and testing to identify the source of electrical problems such as tripping circuits, power loss, or flickering lights.

£80–£250

Fuse Box Replacement Cost

Replacing a fuse box (consumer unit) in the UK typically costs between £350 and £800, including the unit itself, labour, and certification. Upgrading to a modern consumer unit with RCD protection is one of the most important electrical safety improvements you can make.

£350–£800