5 Electrical Dangers Hiding in Older Homes—and How to Fix Them

1. Outdated Wiring Poses Serious Risks

If your home was built before 1960, it may still contain knob-and-tube or cloth-insulated wiring—both of which are unsafe. These systems lack grounding and degrade over time, increasing the risk of electrical shock and fire.

Homes from the 1965–1975 era may have aluminum wiring, which deteriorates and creates loose, overheated connections. Replacing outdated wiring with grounded copper wire is the safest long-term solution.

2. Aging Electrical Systems Can Cause Fires

Brittle wire insulation can crack and expose live wires, and outdated circuits can become dangerously overloaded when running modern appliances. Rewiring helps distribute electrical loads properly and prevents overheating.

3. Lack of Grounding and Safety Devices

Two-prong outlets signal ungrounded systems—these are shock hazards and won’t protect you or your electronics from surges. Modern homes require:

• Grounded outlets – Prevent shock and protect devices
• GFCIs – Required in kitchens, baths, and exteriors
• AFCIs – Prevent fires caused by arcing wires

4. Not Up to Current Code Standards

Electrical codes evolve to make homes safer. What passed inspection in 1970 would fail today. Upgrading ensures your system is compliant and reduces fire risk—and may even lower your home insurance premiums.

5. Insufficient Power for Today’s Needs

Older homes were built for far less electricity than we use today. If your breakers trip often or your lights flicker, it may be time to upgrade to a 100 or 200 amp panel and rewire with modern load demands in mind.