Are Extension Cords a Fire Hazard? What Missouri Homeowners Should Know

Extension cords are a common solution in homes across Missouri. Whether you're plugging in holiday lights, running power tools in the garage, or simply adding reach to a lamp in a room without enough outlets, it's easy to overlook the risks.

But here’s the truth: improper use of extension cords is one of the leading causes of residential electrical fires in the United States. That includes homes right here in Wildwood, Pacific, Union, Washington, and Eureka.

In this article, we’ll explain why extension cords can be dangerous, how to use them safely, and what long-term solutions Cain Electric recommends to make your home safer and more functional.

Why Extension Cords Pose a Fire Risk

The National Fire Protection Association (NFPA) and U.S. Fire Administration report that extension cords cause thousands of residential fires each year. Most of these are preventable.

Here’s why they can be dangerous:

They’re often overloaded by plugging in high-wattage appliances like space heaters or microwaves. This draws more current than the cord is rated for, causing overheating.

They get run under rugs, furniture, or doors, which traps heat and damages insulation. Damaged cords can arc and ignite nearby flammable materials.

They may be used permanently, even though they’re only intended for temporary use. Over time, even heavy-duty cords degrade and become a safety hazard.

They’re commonly daisy-chained, meaning one extension cord is plugged into another. This multiplies the risk of overload and increases resistance and heat.

Signs You’re Using Extension Cords Unsafely

Here are some red flags to watch for in your home:

Cords feel warm or hot to the touch when in use
Outlets spark or trip when cords are plugged in
Cords are cracked, frayed, or repaired with tape
You regularly run cords under rugs or through doorways
You rely on extension cords for permanent power
You’ve plugged multiple cords into a single outlet or power strip
You use outdoor-rated cords inside (or vice versa)

If any of these sound familiar, it’s time to make a change.

Safe Use Guidelines for Extension Cords

Extension cords can be useful — but only if used correctly and temporarily. Here are some basic safety tips:

Only use cords that are properly rated for the appliance you’re plugging in. Check the wattage or amperage of both the cord and the device.

Don’t use cords longer than necessary. The longer the cord, the more resistance, which increases heat and voltage drop.

Never run cords under carpets or rugs. Heat cannot dissipate properly, which can lead to fires.

Use GFCI protection outdoors or in damp locations. This prevents electric shock if moisture is present.

Never daisy-chain cords. Use a properly rated single cord or install a permanent outlet.

Avoid using cords as permanent solutions. If you need constant access to power in a location, it’s time to install a new outlet.

The Best Long-Term Fix: Add More Outlets

If you're relying on extension cords daily, your home’s electrical system likely isn’t keeping up with your needs.

Cain Electric offers safe, code-compliant outlet additions and dedicated circuit installations across Missouri. Whether you need more access in your kitchen, living room, garage, or outdoor areas, we can install properly grounded outlets exactly where you need them.

Adding outlets provides:

Better convenience for home offices, entertainment systems, or EV chargers
Improved safety by eliminating cord clutter and tripping hazards
Increased home value and code compliance
Support for high-wattage appliances without overloading circuits
Peace of mind during holidays, parties, or everyday use

Explore our residential electrical services.

Extension Cord Use and Insurance Claims

Did you know that if an electrical fire is traced back to an overloaded or misused extension cord, your homeowner’s insurance could deny your claim?

Fire inspectors and insurance adjusters often look closely at extension cord use when investigating a house fire. If you’re using cords permanently or in unsafe ways, the damage could be considered preventable.

That’s just one more reason to install permanent outlets or circuits where they’re needed most.

What About Surge Protectors?

Surge protectors and power strips are often confused with extension cords, but they’re not the same.

Surge protectors offer protection against voltage spikes, while power strips are simply multi-outlet extensions. Neither should be used with high-wattage appliances unless specifically rated.

And remember, plugging a power strip into another power strip or extension cord creates a significant fire risk. It’s never safe.

For whole-home protection against surges and voltage spikes, Cain Electric also installs panel-based surge protectors that keep your appliances, chargers, and electronics safe.

Learn more about our surge protection services.

Let Cain Electric Help You Power Your Home Safely

If you’re relying on extension cords to power your daily life, it’s time to make a permanent upgrade. We’ve helped homeowners across Missouri eliminate fire hazards, meet code, and finally get the convenience they’ve been missing.

Whether you need more outlets, a new circuit, or surge protection, our licensed electricians will get the job done quickly and safely.

Contact us today to schedule a home electrical consultation.