Common Electrical Code Violations We Find in Iowa Homes (and How to Spot Them)
The National Electrical Code sets the safety standards for electrical wiring and equipment installation nationwide. While NEC standards and enforcement only apply to new home construction, all homeowners can benefit from learning the potential code violations and how they impact potential home sales and home insurance coverage.
In our latest expert guide, we highlight common National Electrical Code violations we often find during home inspections. We’ll also give you some helpful visual cues so you can identify these issues in your own home and know when to call a licensed electrician.
Missing or Faulty GFCI Outlets
Why it’s a violation
The NEC mandates Ground Fault Circuit Interrupter (GFCI) outlets in any area of the home where water is present, such as bathrooms, kitchens, garages, basements, laundry rooms, and outdoor outlets. These outlets shut off power automatically if they detect a ground fault, helping prevent electric shock.
What to look for:
- No “Test” and “Reset” buttons on outlets near sinks, tubs, or washing machines
- Outlets that trip frequently or don’t reset
- Older two-prong outlets in moisture-prone areas
Pro tip: You can test GFCI outlets with the built-in “Test” button. If pressing it doesn’t stop the power to the outlet, it’s not functioning.
Our blog post on GFCI outlets has more details on how to check for missing or faulty GFCIs.
Overcrowded Electrical Panels
Why it’s a violation
Overcrowded or double-tapped panels, where multiple circuits connect to a single breaker, can overheat and catch fire. This is especially common in older Iowa homes with limited capacity to meet modern electric demands.
What to look for:
- A panel with no available breaker spaces
- Wires crammed into tight spaces inside the panel
- Two or more wires connected to the same breaker (double-tapping)
Pro tip: If your panel is warm to the touch or breakers frequently trip, it could be overloaded. You may need a sub-panel or a full-service upgrade.
Book an emergency electrician as soon as possible to explore panel repair and replacement.
Lack of Arc Fault Protection
Why it’s a violation
The NEC requires Arc Fault Circuit Interrupters (AFCIs) in most residential applications with specific standards for multifamily buildings. AFCIs prevent electrical fires caused by arcing faults in wiring and outlets.
What to look for:
- Bedrooms, family rooms, or hallways with traditional breakers instead of AFCIs
- Older homes with no AFCI protection on any circuits
- Breakers that don’t say “AFCI” on the label
Pro tip: Electricians can add AFCIs to most panels without complex rewiring.
Improper Junction Boxes or Open Splices
Why it’s a violation
Electrical connections in approved junction boxes help contain sparks or heat from a fault. Open splices with wires twisted together and covered with tape are not only a violation but also a serious fire hazard.
What to look for:
- Wires sticking out of ceilings or walls with no box
- Electrical tape or wire nuts visible in crawl spaces, basements, or attics.
- Patchwork wiring jobs from DIY renovations
Pro tip: Junction boxes should always have a cover. If you see exposed wiring connections, call an electrician to enclose them.
No Permits for Past Electrical Work
Why it’s a violation:
In Iowa, any major electrical work, including panel upgrades, new circuits, or room additions, requires permits and inspections. Unpermitted work is a major red flag for electrical code violations during home inspections, as the electrical structure may not meet NEC standards.
What to look for:
- No documentation or permit history for significant changes.
- Inconsistent wiring styles or materials from room to room.
- Panels or circuits that appear new don’t have inspection details.
Pro tip: When buying or selling a home, ask for permit records. If the work wasn’t permitted, it’s worth having a licensed electrician double-check the safety and compliance.
Extension Cords Used as Permanent Wiring
Why it’s a violation:
Extension cords are for temporary use only. If you’re relying on them to power permanent fixtures or appliances, it’s a sign that you need more outlets or properly installed circuits.
What to look for:
- Extension cords running behind furniture or under carpets
- Cords powering space heaters, air conditioners, or kitchen appliances long-term
- Power strips plugged into other power strips (a significant electrical safety hazard)
Pro tip: Overused extension cords are both an electrical code violation and a fire risk. If you’re short on outlets, call Custom Electrical for outlet upgrades and installations.
Improper Bathroom Ventilation Wiring
Why it’s a violation
Many Iowa homeowners attempt to DIY bathroom exhaust fans without realizing the potential safety hazards. For example, using plastic junction boxes with no heat or vibration ratings. Improper wiring or the lack of a dedicated GFCI circuit can cause a fire hazard in a damp environment.
What to look for:
- Bathroom fans that don’t turn on with the light switch
- No GFCI protection on the same circuit as the fan
- Loose or buzzing fan operation
Pro tip: Bathroom fans should be wired to a switch and protected by GFCI circuits. If yours seems unreliable or loud, it may have incorrect wiring.
Incorrect Breaker Size for Appliances
Why it’s a violation
Every appliance has a specific amperage rating, and the breaker must match it. We often find that homeowners (or unqualified handymen) install breakers that are too large to trip, which defeats the safety function.
What to look for:
- A 30-amp breaker feeding standard outlets or light circuits
- Appliances that feel hot or hum unusually when running
- Breakers that never trip, even during obvious overloads
Pro tip: Always match the breaker to the wire gauge and appliance specs. If you’re unsure, we can confirm safe configurations.
A Safety First Approach to Home Electrical Work
Many of these electrical code issues may not seem a significant issue until they cause an electrical fire, shock, or delay a home sale. Correcting code violations protects your family and often lowers your insurance risk. It can also increase your resale value and offer buyers peace of mind during inspections.
Need Electrical Inspection and Repairs in Des Moines or Central Iowa?
At Custom Electrical, we specialize in identifying and fixing electrical code violations in Des Moines, Ankeny, Urbandale, and the surrounding communities. Our team also offers electrical services throughout Eastern Iowa, including Iowa City, Cedar Rapids, and Davenport.
Whether you’re getting ready to sell your home, buying an older home, or just want peace of mind, we’re here to help.
Our licensed electricians will inspect, repair, and upgrade your system to ensure it’s safe, compliant, and future-ready. We also offer post-inspection reports to help showcase your commitment to electrical service excellence.
Take a proactive approach to home electrical safety and request your upcoming electrical inspection with Custom Electrical. Call (515) 669-3418 to speak with an electrician now!
