When Does a House Need Rewiring?

Houses with old wiring pose a danger to both the family and the home. Unfortunately, rewiring is the most overlooked aspect of a renovation, as many people believe that functioning plugs and switches mean there’s no reason to contact an electrician. However, it’s more complicated than that. Houses more than two decades old are likely to have electrical issues hidden in the wiring. 

This article shares the reasons why rewiring a house is worth it, as well as the warning signs to keep in mind.

Reasons to rewire a home

From improving the electrical system, increasing home value to having peace of mind, there are numerous reasons to rewire a home:

Increased electrical capacity

Old wiring systems have an average capacity of 60 amps. Modern-day appliances need more power, so high loads on a weak system can cause serious damage. The devices could burn out and start a fire. Updating the electrical system to 100 amps is highly recommended.

Improved safety

Rewiring a home improves safety. Non-insulated wires can cause shocks and fires due to power fluctuations. Overloads can melt and burn the wires, and improper wiring can render the appliances useless.

Enhanced electrical system

Home rewiring boosts the overall quality of the electrical system. Each appliance can be wired to its own circuit, lowering the chances of overloading. Plus, it’s possible to set up ground fault circuit interrupters and smoke alarms.

Reduced costs

New wiring helps homeowners get lower insurance rates. Proper wiring lowers the risk of accidents, meaning it’s less expensive to insure a property. Also, a rewired house has a higher value; at the time of a sale, the homeowner may recoup the cost of the rewiring.

Following are warning signs that indicate it’s time to schedule rewiring:

  • Fuses that blow too often

  • Frequent tripped breakers

  • An electrical panel that’s over-fused or over-amped

  • Buzzing sounds from the wiring

  • Flickering or dimming lights

  • Hot switch plates, plugs, and cords

  • Bulbs burn out in a socket too often

  • Burning smell

  • Loose outlet

  • Outlet sparks when plugging and unplugging cords

  • Broken or cracked insulation

  • The electrical shock when plugging a cord

Warning signs don’t have to be the only reason to call an electrician. To ensure optimum home safety, schedule electrical inspections periodically. The situations below warrant a professional inspection, even though they aren’t accident hazards per se:

  • Living in a 40+-year-old home

  • Using extension cords for power

  • Adding major new appliances

  • Making major home improvements

  • Using ungrounded, two-prong outlets

  • Having aluminum wiring

House rewiring cost

Rewiring a home can cost anywhere from $1,500 for small houses to $10,000 for large houses. The cost varies depending on numerous factors:

  • Size and age of a house

  • A new electrical circuit, outlet, and switch addition

  • Electrical service panel upgrade

  • Whether an inspection or a permit is required

Rewire today to feel safer tomorrow

Rewiring a house is highly recommended for old homes, as well as those showing warning signs. It’s still a good idea to rewire if you think your devices may be overloading the electrical system in your home. After all, there is peace of mind knowing all has been done to reduce the risk of electricity-related safety hazards.

Still uncertain whether your home needs rewiring? Contact electrical service contractors for assistance.


ACT Electric performs quality, licensed and bonded work at affordable prices for both residential and commercial jobs. From troubleshooting to whole-house electrical renovations, their primary concern is the comfort and safety of their customers. Give them a call at (480)986-1722 today!

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