If you’re outlet isn’t working but the breaker isn’t tripped , that could mean a number of things. First, check if it’s a GFCI outlet, which has added protection so your breakers don’t malfunction. If that’s the case, simply hit the outlet's reset button and see if it works. If it doesn’t, or you don’t have a GFCI outlet, you might have a loose outlet or loose wiring, a damaged breaker, or an overloaded circuit, which would require a dedicated breaker. It’s best to consult with an electrician to diagnose the problem accurately.

Compared to amps, volts, and watts, ohms are a different kind of measurement, though also very common. Ohms show the resistance of materials like wiring: How much they impede the flow of electrons. The reason household wiring is usually copper or aluminum is that these materials are affordable and also have lower ohms, which means low resistance/high conductivity.

In the majority of cases, you can replace an outlet with a USB outlet. USB charging receptacles install in the same spot as standard outlets and any electrician worth their salt is more than familiar with the replacement process. Additionally, it’s possible to replace yourself, but only if you have prior experience with your home’s electrical system, as it requires handling of wires.

Yes, electricians must be licensed, certified, and in most cases, insured. Licensing requirements vary by state and local municipality, but most U.S. municipalities require electricians to hold an electrical contractor’s license. It's always a good practice to confirm requirements with your local municipality. Even if licensing is not required in your area, hiring a licensed and experienced electrician often leads to a better end result.

A license is a legal requirement to operate a business and is necessary for pulling project permits. Certifications, on the other hand, are typically voluntary and demonstrate a certain level of expertise. In some cases, a certified electrician may send an apprentice or journeyman to perform the work, but they must operate under a primary electrician who holds the proper license.

Before hiring, you should verify the electrician's license, insurance coverage, and any third-party certifications. You can use Angi’s contractor licensing search to confirm a pro's license status. Additionally, businesses with the “Angi Approved” badge on our platform meet strict criteria, including having the required state and local licenses, passing a background check, and maintaining a high average rating.