How much does it cost to rewire a house?
Whole-house rewire runs $4,500 for a small home with accessible attic and crawlspace, $12,000 for a typical 1,800 sqft home with finished walls, and $28,000+ for older homes with knob-and-tube and full plaster replacement.
Quick price points (2026)
| Scope | Cost | What it includes |
|---|---|---|
| Low | $4,500 | whole house |
| Typical | $12,000 | whole house |
| High | $28,000 | whole house |
How to budget for this project
- Get 3 quotes
Get itemized quotes from at least three licensed contractors in your area.
- Adjust for your region
Compare the same scope and account for regional labor and permitting.
- Add 10–15% contingency
Hidden conditions, code upgrades and permit fees can increase the original quote.
- Plan the cash, not the financing
Build the replacement cost into the home's repair plan before the work becomes an emergency.