Signs that you have an electrical problem that needs to be looked at by a qualified commercial electrician can vary depending on the seriousness of the issue.
Some of the main things you might notice are lights that consistently flicker or get dimmer, fuses blowing regularly to getting a mild shock or tingling feeling when switching on an appliance.
Ignoring any electrical issues could lead to serious issues later on, which is why it’s important to get your electrics tested on a regular basis.