Most Common Electrical Code Violations (And Which Ones Are Actually Dangerous)

The National Electrical Code (NEC) is a massive, complex document that is updated every three years by the National Fire Protection Association. With each update, the standards for safety become more rigorous. 

Because of these frequent changes (and the unfortunate prevalence of unscrupulous general contractors and “house flippers”), it is rare to find a home that is 100% compliant with the latest code.

However, not all violations are created equal. Some are minor inconveniences related to modern usability, while others present immediate fire or shock hazards.

At Current Electrical Contractors, we believe homeowners should understand the difference. Below are the most common electrical code violations we encounter, categorized by the risk they pose to your property and family.

The Critical Violations (Immediate Safety Hazards)

These are violations that we consider “red flags.” They are often the result of amateur workmanship or corners being cut during a remodel. If your home has these issues, they should be corrected immediately.

Missing Ground Fault Circuit Interrupters (GFCIs) 

This is perhaps the most common code violation we see. Code requires GFCI protection for outlets in “wet” locations, like: 

• Bathrooms
• Kitchens
• Garages
• Unfinished basements
• Outdoors

A GFCI is designed to cut power instantly if it detects a disruption in the current, preventing electrocution. If you have standard outlets near a sink or outside, you are taking an unnecessary risk.

Buried Junction Boxes 

All wire splices (connections between two or more wires) must be housed inside a junction box, and that box must remain accessible. We frequently find that contractors have spliced wires and then buried the box behind drywall, ceiling, or insulation to hide their work. This is dangerous for two reasons:

• Fire Risk: 

Loose connections generate heat. If that heat is trapped behind a wall without a proper enclosure, it can ignite building materials.

• Diagnostic Nightmares: 

If a problem occurs, the connection is impossible to locate without cutting open walls.

Mismatched Wire and Circuit Breaker Sizes 

This is a classic example of invisible danger. Standard residential wiring usually involves 14-gauge wire (thinner) or 12-gauge wire (thicker).

• 14-gauge wire must be protected by a 15-amp breaker.
• 12-gauge wire is rated for a 20-amp breaker.

A common violation occurs when an amateur sees a breaker tripping and simply swaps the 15-amp breaker for a 20-amp one, without upgrading the wire. This allows the wire to carry more current than it is rated for. The wire can overheat and melt its insulation before the breaker ever trips, leading to an electrical fire inside your walls.

Ungrounded Outlets 

In older homes, it is common to find two-slot outlets. A major code violation occurs when someone swaps these out for modern three-slot outlets without actually installing a ground wire. This tricks the user (and sometimes a tester) into thinking the outlet is grounded when it is not. This leaves your expensive electronics and appliances vulnerable to power surges and leaves you vulnerable to shock.

The “Convenience” Violations (Code Compliance vs. Danger)

While strictly enforced by municipal inspectors, some code requirements are focused more on convenience or energy efficiency than on immediate danger.

For example, the current code often mandates that a room must have a light switch located at every entry point. While this is certainly convenient, lacking a switch at a secondary door is not a fire hazard. We view these types of violations differently from the wiring issues listed above. While we can certainly update them to meet modern standards, they do not pose the same threat as non-GFI outlets or buried junction boxes.

Suspect an Electrical Code Violation? Schedule an Inspection Today

If you are buying a new home, or if your current home was remodeled by a general contractor who did not bring in a licensed electrician, there is a high probability that code violations exist. Learn more about the types of violations we’ve seen. 

Do not wait for a spark or a tripped breaker to investigate. Contact Current Electrical Contractors today at 847-832-0700. We can perform a thorough evaluation to determine which violations are mere technicalities and which ones require immediate professional correction to keep your home safe.