How Much Does It Cost to Rewire a Whole House?

If your home is more than 30 years old, or you keep tripping breakers and noticing flickering lights, you may be wondering how much to rewire a whole house — and whether it's actually worth the investment. It's one of the bigger electrical projects a homeowner can undertake, and the cost can feel overwhelming without a clear breakdown of what drives the price. The good news is that once you understand the key factors, budgeting becomes a lot more manageable.

This guide walks you through realistic price ranges, the variables that push costs up or down, what the process actually involves, and how to prepare your home before an electrician arrives. Whether you're dealing with outdated knob-and-tube wiring, aluminum wiring from the 1970s, or simply planning a major renovation, knowing what to expect ahead of time puts you in a much stronger position when it's time to get quotes.

How Much to Rewire a Whole House: Typical Cost Ranges

In the United States, the cost to rewire a whole house typically falls between $8,000 and $15,000 for an average-sized home, though smaller homes under 1,500 square feet may come in closer to $5,000–$8,000, and larger properties over 3,000 square feet can exceed $20,000. These figures include labor, materials, panel upgrades if needed, and permit fees. For homeowners researching whole house rewire cost estimates, it's important to treat any single number as a starting point rather than a fixed quote — your actual cost will depend on several specific factors.

For those comparing whole house rewiring cost in Singapore or other international markets, pricing tends to differ significantly due to labor rates, material costs, and local electrical code requirements. In Singapore, for example, whole-home rewiring often ranges from SGD $3,000 to $8,000 depending on home size and the complexity of the existing system. If you're in the Lawton area, local labor rates and Oklahoma permitting requirements will shape your final number, which is why getting a local estimate is always the most accurate step.

The single biggest cost driver is home size, but it isn't the only one. Homes with plaster walls instead of drywall are more labor-intensive to run new wire through, which adds cost. Older homes that require a full panel upgrade alongside the rewire will also see higher totals. If you're already planning a renovation, bundling your Remodel Electrical Wiring with a rewire can reduce overall labor costs since walls are already open.

What Factors Influence the Final Price?

Several variables will move your quote up or down, and understanding them helps you have a more productive conversation with any electrician. First is the age and condition of your existing wiring. Homes with knob-and-tube or aluminum wiring require full replacement and may have additional code compliance requirements that add time and material. Second is the size and layout of your home — a two-story home with a finished basement requires more wire runs and more labor hours than a single-story open-plan property of the same square footage.

Third is whether your electrical panel needs to be upgraded at the same time. Many older homes running 100-amp service will need to move to 200-amp service during a rewire, especially if the homeowner plans to add EV chargers, new appliances, or a home addition. Panel upgrades typically add $1,500–$3,500 to the overall project. Fourth is permit and inspection fees, which vary by municipality but are non-negotiable — any licensed electrician will pull the appropriate permits, and you should be cautious of any contractor who suggests skipping that step.

Finally, accessibility matters. If your home has finished ceilings, crawl spaces, or tight attic runs, electricians will spend more time carefully fishing wire to minimize damage to your walls and finishes. A whole-house rewire on an unfinished home under construction is significantly less expensive per square foot than one on a fully finished home.

How to Prepare Your House for Rewiring

Knowing how to prepare your house for rewiring can save you time, reduce your labor bill, and make the process much less disruptive. Start by clearing access to your attic, basement, crawl space, and electrical panel. Electricians need to move freely through these areas throughout the job, and cluttered spaces slow everything down. Remove furniture from walls in rooms where outlets and switches will be replaced, and take down any wall art or shelving near electrical boxes.

You should also plan for being without power to sections of your home for several hours at a time across multiple days, depending on the scope of the work. If you have pets or small children, coordinate a plan to keep them safely out of work areas. It's also a good time to decide if you want to add outlets, USB charging ports, dedicated circuits for home offices, or outdoor electrical access — communicating these requests before work begins is far easier and less costly than adding them mid-project.

If you're ready to move forward and want a professional assessment of your home's electrical system, a local electrician handles Whole House Rewiring from the initial inspection through final permit sign-off, so you're never left managing the process alone.