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Ask an Electrician: Is it normal for my outlet to spark whenever I plug something in?

Table of Contents

Table of Contents

Have you ever noticed a small spark when plugging in a toaster or phone charger? While a tiny flicker might seem alarming, it’s often nothing to worry about. In this Ask an Electrician post by our expert inner west Sydney electricians, you will learn the reasons behind sparking outlets and help you determine when a spark becomes a cause for concern.


Why do outlets spark when I plug something in?

In most cases, a small, quick spark when you plug in a device is perfectly normal and nothing to worry about. This usually happens when someone plugs in a device while the power point is turned on and because electricity travels at an incredibly fast speed, the small spark may occur.

When you plug something in, the metal prongs of the plug make contact with the metal contacts in the outlet. For a very brief moment, there’s a tiny “gap” as the electricity jumps across to complete the circuit. This jump can sometimes cause a small spark, similar to static electricity.

It’s important to remember to turn off electrical plugs before plugging something else in.

When should I be worried about the sparks in my outlet?

While seeing tiny sparks when plugging into an outlet is usually nothing to worry about, they can also be a sign of electrical problems that need attention. Here are some red flags to watch out for:

Frequent or Large Sparks

If you see sparks coming from the outlet every time you plug something in, or if the sparks are unusually large or bright (orange, yellow, or red), this could indicate a loose connection, damaged wiring, or overloaded circuits. These issues can pose fire hazards and should be addressed by a qualified electrician in Inner West Sydney.

Burning Smell

If you smell burning plastic or rubber when plugging something in, this is a definite sign of a problem and you should immediately unplug the appliance and turn off the circuit breaker for that outlet. Don’t use the outlet again until a licensed electrician has inspected it.

How do I stop my outlet from sparking?

If it’s a small, infrequent spark, unplug the appliance and check the plug prongs for damage. If they’re bent or loose, consult a professional to replace the plug. For the outlet, ensure nothing is lodged inside causing a poor connection.

If the sparks are frequent, large, or accompanied by a burning smell, don’t use the outlet. Immediately turn off the circuit breaker controlling that outlet and call a licensed electrician.

Electrical problems can be dangerous and should only be addressed by a qualified professional.

Here are some tips to prevent sparking outlets:

  • Avoid overloading circuits or plugging too many appliances into one outlet or power strip.
  • Use surge protectors. These can help protect your electronics from voltage spikes that can damage plugs and outlets.
  • Regularly inspect the cords and plugs of your appliances, power strips and other electrical devices. Look for signs of fraying or damage and replace worn-out cords.


If you’re unsure whether the sparking is normal or a sign of a problem, it’s always best to err on the side of caution. Mr Sparky can diagnose the cause of the sparking and ensure your home’s electrical system is safe.

How much does it cost to fix a sparking outlet?

For a straightforward sparking outlet repair in Inner West Sydney, you might be looking at a total cost between $150 to $300. This includes a diagnostic fee, basic repairs like tightening connections, and potentially replacing a standard outlet.



Occasional small sparks when plugging in appliances are normal. However, frequent, large sparks or a burning smell indicate a potentially dangerous electrical issue. If you experience these red flags, stop using the outlet immediately, turn off the circuit breaker, and call Mr Sparky to address the problem.


Meet Steven, owner of Mr Sparky and seasoned professional electrician in Sydney. With more than 15 years of experience in taking care of the electrical needs of Sydney’s residents, Steven loves to share his expertise and knowledge to ensure everyone is electrical safe. Need an electrician in Sydney – give Mr Sparky a call


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