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Several signs can indicate a light switch is bad. If the switch feels loose, slides down after you flip it, or requires multiple flicks to turn the light on, it may be failing. Other common indicators include flickering lights or a general failure to turn the light on or off. Pay attention to any unusual sounds, such as crackling, buzzing, or popping when you operate the switch. More serious signs, which can present a fire or shock hazard, include the switch feeling excessively warm or hot, sparking, smoking, or emitting a burning smell. If you notice any of these dangerous signs, stop using the switch immediately and call an electrician.

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.

No, wiring does not need to be redone to get a dimmer switch, as they work with single-pole and three-way switches. Just ensure you choose a dimmer that is compatible with your wiring, fixture, and lightbulbs. Most homes built after 1985 have neutral wiring and work with almost all dimmers. If your home was built before 1985 and you don’t have an updated electrical system, you may have to use a non-neutral wiring dimmer.

A light switch should be at least 2 inches from the edge of the trim of a door. The location of wall studs will often help determine where to put the light switch by your doorway, and in most cases, wall studs make it impossible to install the switch closer than 2 inches. When possible, try to keep the switch within arm’s length of the entryway.