Ten Signs Your House Needs Rewiring

Rewiring is a large decision and it should not be made on a hunch. But there's a point at which repeated small repairs stop being repairs and start being evidence. These are the signs that tend to appear together.

The ten signs

• Two-prong outlets throughout. No equipment ground anywhere in the house.
• A fuse box, or a panel that has never been changed. Frequently the same age as the wiring behind it.
• Warm or discoloured switch plates and outlets. Heat at terminations that shouldn't be generating heat.
• Breakers that trip across multiple circuits. One circuit is a fault; several is a capacity problem.
• Cloth-covered or rubber-insulated cable visible in the basement or attic.
• Lights that dim across the house when a motor starts, rather than just on one circuit.
• A burning smell that comes and goes without an obvious source.
• Extension cords as permanent infrastructure because there aren't enough outlets to live normally.
• Insurance difficulty. A carrier declining, surcharging, or requiring an inspection.
• Ad-hoc additions over decades — junction boxes in odd places, circuits nobody can identify, unlabelled breakers.

One sign is a repair. Four is a project.

Any single item on that list has a targeted fix. What indicates a rewire is the cluster: when the wiring is original, the panel is original, and the house has been extended twice since. At that point money spent on individual repairs is money spent twice.

Partial rewires are legitimate

It isn't all or nothing. Rewiring the kitchen, bathrooms and second floor while leaving sound circuits alone is common, sensible, and dramatically cheaper. A good assessment tells you which circuits are actually a problem rather than assuming all of them are.

Get an assessment first

Before any quote, have someone open the panel, check the attic and basement, and test a sample of circuits. Scope drives price on a rewire more than anything else, and scope can only be established by looking.