Whole-House Rewiring Cost Calculator
2026 U.S. whole-house rewiring planning ranges scale with affected square footage and access. Open-wall remodels price lower than finished occupied homes; knob-and-tube or plaster-heavy access raises labor and finish repair risk. Replacing outdated knob-and-tube or aluminum branch circuits with modern copper wiring. Finish repair and home age heavily influence the high end.
Estimated whole-house rewiring cost cost
Enter your project details and calculate to see a planning estimate.
This is a planning estimate, not a contractor quote. Actual costs vary by location, home condition, material availability, permits, and project complexity.
Planning rates for cost year 2026 (national baselines × state regional factors). Not a contractor quote.
National planning ranges
| Item | Low | Typical | High |
|---|---|---|---|
| Whole-House Rewiring (national planning range)per project | $8,000 | $15,000 | $30,000 |
About this project
Replacing outdated knob-and-tube or aluminum branch circuits with modern copper wiring. Finish repair and home age heavily influence the high end.
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Frequently asked questions
How should I use this estimate?
- Treat the result as a planning range, not a contractor quote. Collect multiple written bids with matching scope before committing.
What does this estimate include?
- The model applies 2026 U.S. national planning baselines with regional and complexity adjustments. Treat it as a budget range, then compare written bids.
Why can two bids differ so much from this range?
- Access, material tier, permits, hidden damage, and labor markets move totals. Use the calculator to set a budget band, then compare like-for-like written scopes.
Methodology & estimate disclaimer
2026 U.S. whole-house rewiring planning ranges scale with affected square footage and access. Open-wall remodels price lower than finished occupied homes; knob-and-tube or plaster-heavy access raises labor and finish repair risk.
Actual costs vary by location, home condition, material availability, permits, and project complexity. Read our methodology, the national cost bands table, editorial policy, and disclaimer. Planning provenance uses the internal model and, where listed, public datasets for context—not invented third-party bid averages.
Planning sources
- Home Cost Atlas national planning model v1 (version: v1) — Modeled national planning ranges used for cost guides and seed CostRecords. Values are planning estimates synthesized for budgeting context, not observed contractor invoices or bid samples.
- Home Cost Atlas planning baselines v1 (version: v1) — Internal baseline spreads (low / typical / high) by project category. Intended for calculator scaffolds and aggregation fallbacks; not a dataset of paid jobs.
- CPSC — electrical safety education — Safety education for electrical panel / rewiring pages—not electrician price books.
- BLS Occupational Employment and Wage Statistics (construction trades) (version: OES May 2025 release cycle) — Public wage context for residential construction and installation occupations. Labor-market context for regional multipliers—not job-level bid samples.
Public datasets supply labor and market context for the planning model. They are not aggregated contractor invoices or bid samples.
Cost year: 2026 rate book · Data version: hca-national-model-v1+cluster-context-2026 · Last reviewed: July 24, 2026