Why Are My Lights Flickering? Common Electrical Causes Explained
Flickering lights are a common electrical issue that many homeowners experience. While the problem can sometimes be minor, it can also indicate a more serious electrical fault that shouldn’t be ignored.
Understanding the possible causes can help you decide when it’s safe to monitor the issue and when it’s time to call a qualified electrician.
⚡ Common reasons lights flicker
There are several reasons why lights may flicker, including:
Loose bulbs or fittings
Faulty light switches
Overloaded circuits
Voltage fluctuations
Poor wiring connections
Issues with the consumer unit (fuse board)
Some causes are simple to fix, while others require professional attention.
🔌 Loose fittings or bulbs
In many cases, flickering is caused by a loose bulb or fitting. Try switching the light off and ensuring the bulb is securely fitted.
If the issue continues after checking, the fault may be deeper within the wiring or switch.
🚨 Wiring or circuit problems
Loose wiring connections or damaged cables can cause intermittent power flow, leading to flickering lights. This is more common in older properties or where wiring has been altered over time.
Electrical wiring faults can pose a safety risk and should always be inspected by a qualified electrician.
🛠 Fuse board or circuit overload
If multiple high-power appliances are running on the same circuit, it can cause voltage drops and flickering lights. Older fuse boards may struggle to handle modern electrical demands.
Upgrading or redistributing circuits can often resolve the issue safely.
⚠️ When should you call an electrician?
You should contact a professional electrician if:
Lights flicker frequently or across multiple rooms
Flickering happens alongside fuse trips
You notice buzzing sounds or burning smells
The property has old wiring or fuse boards
Ignoring ongoing electrical issues can lead to larger faults or safety concerns.
📍 Need help fixing flickering lights?
Premium Electrical Solutions provides professional electrical fault finding and repairs across London & Essex. Our NICEIC-approved electricians can quickly identify the cause and carry out safe, reliable repairs.
