Cost to Replace an Electrical Panel and Rewire a House in North Carolina

Last updated September 2026 by the licensed electricians at JCT Electric Inc in Denver, NC.

Quick answer: Rewiring a house typically costs about $4 to $10 per square foot, so a full rewire of an 1,800 square foot home often runs $9,000 to $18,000. Replacing the electrical panel at the same time usually adds $2,500 to $5,000. Homes with a crawlspace or accessible attic cost less to rewire, while slab foundations, plaster walls, and two story layouts cost more.

If an inspector, insurance company, or electrician has told you that your home needs new wiring, the first question is what it will cost and whether the panel has to be replaced too. This guide walks through realistic numbers, what drives them, and how to keep the project manageable.

Cost to Rewire a House and Replace the Panel

Wall and ceiling patching may or may not be included, so confirm that when you compare quotes. These ranges are meant to help you judge a quote, not replace an on site assessment.

What Drives the Cost of Rewiring

Access to the walls

This is the single biggest factor. In a ranch home with a crawlspace and an open attic, electricians can fish new wire into most walls through small openings. A slab foundation or a second floor with no attic access means more openings, more patching, and more hours.

Wall material

Drywall is easy to open and repair. Plaster and lath, common in homes built before the 1950s, is slower to work through and harder to patch cleanly.

What wiring is being replaced

Knob and tube and cloth insulated wiring usually means a full replacement. Aluminum branch circuit wiring can sometimes be made safe with approved connectors at each device instead of a full rewire, which can save a significant amount.

Code requirements that come with new wiring

New circuits must meet current code, which can mean arc fault and ground fault protection, grounded outlets throughout, and updated smoke alarm wiring. These are real safety improvements, and they belong in the quote.

Whether the home is occupied

Rewiring an empty house during a renovation is faster than working room by room around furniture and a family. Many homeowners stay in the home, and that is workable with a plan.

Permits and inspections

A rewire is inspected at the rough in stage before walls are closed and again at final. Those inspections protect you and are part of a legitimate price.

Does the Panel Need to Be Replaced When You Rewire?

Often, yes. An older panel may not accept the arc fault and ground fault breakers new circuits require, may not have enough spaces, or may be a brand with a known failure history like Federal Pacific or Zinsco. Replacing it during a rewire also saves money, because the electrician is already reworking every circuit that lands in it. If your panel is in good condition, correctly sized, and accepts modern breakers, it can stay. See how much it costs to replace an electrical panel for the panel side of the budget.

Signs Your House Needs Rewiring

• Knob and tube or cloth insulated wiring is visible in the attic, basement, or crawlspace.
• The home has single strand aluminum branch circuit wiring, common in houses built from roughly 1965 to 1973.
• Most outlets are two prong with no ground.
• Outlets or switch plates feel warm, or you notice a burning smell.
• Lights flicker or dim when appliances start.
• Breakers trip often without an obvious cause.
• Your insurer or a home inspector has flagged the wiring.

For a longer checklist, read electrical red flags in older homes.

Full Rewire or Partial Rewire?

A partial rewire replaces the highest risk circuits first, often the kitchen, bathrooms, laundry, and any remaining knob and tube. It makes sense when most of the home was updated at some point and only certain areas are original. A full rewire makes sense when the wiring is uniformly old, when insurance requires it, or when you are already opening walls for a renovation. A good electrician will tell you honestly which one your home needs.

How Long Does It Take to Rewire a House?

Most full home rewires take one to two weeks of work, plus time for inspections and wall repair. Partial rewires are often done in two to four days. You can usually stay in the home, with power restored to most areas at the end of each workday.

How to Keep a Rewiring Project Affordable

• Phase the work. Start with the highest risk areas and complete the rest later.
• Pair it with a remodel. Open walls cut labor dramatically.
• Ask about aluminum wiring repair. Approved connectors can be a safe, lower cost alternative to replacement.
• Plan for future loads. Add circuits for an EV charger, a home office, or a hot tub while the walls are open.
• Get an itemized quote. Knowing what is included makes quotes comparable.

Rewiring Cost FAQs

Is it worth rewiring an old house?

Yes when the wiring is knob and tube, deteriorating cloth insulated cable, or ungrounded throughout. It reduces fire risk, satisfies insurers, supports modern appliances, and removes a common objection when you sell.

Can you rewire a house without removing drywall?

Mostly. Electricians fish wire through attics, crawlspaces, and small access holes, so walls are not torn out. Some patching is almost always needed.

Will insurance cover rewiring?

Insurance does not usually pay to replace outdated wiring, but many insurers require it before they will write a policy on a home with knob and tube or certain aluminum wiring.

Do I need a permit to rewire my house in North Carolina?

Yes. Rewiring requires a permit with rough in and final inspections.

How long does house wiring last?

Modern copper wiring installed correctly can last many decades. Its insulation and connections are what age, especially around heat and moisture.

Rewiring and Panel Replacement in Denver and the Lake Norman Area

JCT Electric rewires older homes and replaces panels across Lincoln, Catawba, Iredell, Gaston, and Mecklenburg Counties from our shop on N NC 16 Business Highway in Denver. We inspect first, show you what we found, and give you a firm itemized price with the option to phase the work. Our own licensed electricians do every job, with no subcontractors.

Learn more about our rewiring and code corrections and panel upgrades, or call 980-785-1118 Monday through Friday from 8:30am to 4:00pm. Saturdays are available by appointment.