By IB Electric
- Whole house rewiring cost in Michigan runs $10,000–$30,000, with most mid-size homes landing $12,000–$18,000 — roughly $4–$9 per square foot.
- Home size sets the baseline, but accessibility is the swing factor: open basement and attic access is far cheaper than plaster walls and finished spaces.
- Knob-and-tube replacement runs higher, $12,000–$35,000, because the entire old system has to come out — and it’s often an insurance issue.
- Base quotes frequently exclude drywall or plaster repair, permits, and any panel upgrade — so ask for an itemized quote to compare fairly.
- Metro Detroit’s older housing stock means many homes have plaster walls or outdated wiring that push the price toward the higher end.
Whole house rewiring cost in Michigan typically runs $10,000 to $30,000, with most mid-size homes falling between $12,000 and $18,000 — but the honest figure for your home depends heavily on two things the sticker price hides: how accessible your walls are, and what kind of wiring is coming out. Rewiring is a once-in-a-lifetime project for most homeowners, and understanding what actually drives the cost is how you budget it correctly and read a quote without surprises. Here’s the full breakdown for Metro Detroit.
IB Electric rewires homes across Wayne, Oakland, and Macomb counties, and our founder has held a Michigan master electrician license since 1997. We work in Metro Detroit’s older neighborhoods constantly, so we know how much the age and construction of a home shape a rewiring quote. Let’s make the whole cost transparent.
What Is the Whole House Rewiring Cost in Michigan?
For a complete rewire, whole house rewiring cost in Michigan generally runs $4 to $9 per square foot, which puts most homes in the $10,000 to $30,000 range. Home size is the single biggest driver — more square footage means more wire, more outlets, and more labor hours. The table gives a realistic starting range by home size for a standard rewire.
| Home size | Typical rewiring cost |
|---|---|
| ~1,000 sq ft | $5,000 – $9,000 |
| ~1,500 sq ft | $7,000 – $13,000 |
| ~2,000 sq ft | $9,000 – $18,000 |
| ~2,500 sq ft | $11,000 – $22,000 |
| ~3,000 sq ft | $14,000 – $27,000 |
These ranges assume reasonable access. The moment walls have to be opened and repaired, the number climbs — which is why two homes of identical size can get very different quotes.
What Actually Drives the Cost
Beyond square footage, a handful of factors decide where your home lands in that range. Knowing them explains why quotes vary and helps you spot what’s realistic.
- Accessibility. This is the big one. A home with an open basement, attic, or crawlspace lets electricians route wire without opening walls. A home with finished spaces and no access means cutting into walls and ceilings — and repairing them after.
- Wall type. Plaster walls, common in older Metro Detroit homes, are harder to open and repair than modern drywall, adding labor and finish cost.
- The wiring being removed. A straightforward update costs less than pulling out knob-and-tube or remediating aluminum wiring, which add scope.
- A panel upgrade. Rewiring often pairs with a service panel upgrade, since old wiring and old panels tend to go together. That’s an added cost covered in our guide to the cost to replace an electrical panel.
- Outlets, fixtures, and finish. More outlets and switches (modern code requires an outlet roughly every 12 feet), plus higher-end fixtures, add to the total.
- Permits and inspection. Rewiring is permitted work — typically $250 to $900 for the permit, plus an inspection.
Pro tip: Ask whether the quote includes drywall or plaster repair. Many base rewiring quotes cover only the electrical work and leave wall and ceiling patching, painting, and cleanup as separate costs — which can add several thousand dollars. An itemized quote that spells this out is the only way to compare bids fairly.
Cost by Wiring Type
What’s coming out of the walls matters as much as the size of the house. Older wiring types add scope and cost, and some carry insurance implications that make replacement more urgent than optional.
| Scenario | Typical cost | Note |
|---|---|---|
| Standard rewire, good access | $4 – $7 / sq ft | Open basement or attic to route wire |
| Rewire with plaster / poor access | $7 – $9+ / sq ft | Common in older Metro Detroit homes |
| Knob-and-tube replacement | $12,000 – $35,000 | Entire old system removed; insurance issue |
| Aluminum wiring remediation | Varies; often full replacement | Connection fire risk; insurers flag it |
Knob-and-tube and aluminum wiring are the two big ones in older housing. Knob-and-tube (in homes from the early 1900s) has no ground and worries many insurers. Aluminum branch wiring (used widely from about 1965 to 1972) isn’t dangerous for the metal itself but for its connections, which can loosen and overheat — federal safety researchers have found a markedly higher fire risk in these homes. Both often make replacement a condition of insurance or a home sale, similar to the way outdated panels do. Our guides on fuse box to breaker panel replacement and Federal Pacific panel replacement cover related hazards you may find alongside old wiring.
The Costs That Base Quotes Often Leave Out
This is where budgets go sideways. A base rewiring quote frequently covers only the electrical work — and several real costs get added on top or listed separately. Budget for these from the start:
- Drywall or plaster repair. Fishing wire behind walls means holes to patch. Repairs run a few hundred dollars per patch and add up quickly, especially with plaster.
- Painting and cleanup. After patching comes repainting and debris removal.
- A panel upgrade. If your service can’t support modern wiring, a panel upgrade gets bundled in — often $3,000 or more.
- Permits and inspection. Required, and sometimes quoted separately.
- Temporary relocation. For a full rewire, many electricians recommend staying elsewhere during the work.
A good rule of thumb: budget 15 to 25% above a base estimate, especially for a home over 30 years old. And insist on an itemized quote so you know exactly what’s in and what’s not.
Want an itemized rewiring quote with no surprises?
We assess your home’s access, wiring, and panel, then quote every line — electrical, wall repair, permits, and all. Book an assessment with IB Electric.
Is Rewiring Worth the Cost?
For a home with genuinely outdated or unsafe wiring, it’s one of the most worthwhile investments you can make — and often not optional. Old wiring is a leading cause of house fires, so replacing it directly reduces fire and shock risk. It also restores insurability, since many carriers refuse or surcharge homes with knob-and-tube or aluminum wiring, and it removes a major obstacle at resale, where a home with old wiring can see its value and buyer pool shrink. On top of the safety and insurance case, modern wiring finally supports today’s electrical loads — the appliances, electronics, and EV chargers an old system was never built for. If your home shows warning signs like frequent breaker trips, a burning smell, or discolored outlets, rewiring moves from a someday project to a priority.
A Note for Older Metro Detroit Homes
Metro Detroit has a lot of mid-century and older housing, and that shapes rewiring costs here specifically. Many of these homes have plaster walls (pricier to open and repair than drywall), limited access in finished spaces, and a real chance of knob-and-tube or early aluminum wiring still in place. All of that tends to push a rewire toward the higher end of the range. The upside is that these are exactly the homes where rewiring delivers the most value — in safety, insurability, and capacity. If your panel is also dated, addressing both together is more efficient than doing them separately; our guide to the signs your electrical panel needs an upgrade helps you tell. For a safe, code-compliant job, you can review electrical safety guidance from the Electrical Safety Foundation International, and Michigan’s permit process on the LARA permit page.
Frequently Asked Questions
How much does whole house rewiring cost?
Whole house rewiring cost runs $10,000 to $30,000 for most homes, or about $4 to $9 per square foot, with mid-size homes typically $12,000 to $18,000. The final price depends on home size, wall accessibility, the type of wiring being removed, and whether a panel upgrade is needed.
Why is rewiring a house so expensive?
Because it’s labor-intensive and touches the whole house. Electricians route new wire to every outlet, switch, and fixture, often opening and repairing walls to do it. Plaster walls, finished spaces, old wiring removal, a panel upgrade, permits, and wall repair all add to the total beyond the wire itself.
How much does it cost to replace knob-and-tube wiring?
Knob-and-tube replacement typically costs $12,000 to $35,000, more than a standard rewire because the entire old system must be removed. It’s common in homes from the early 1900s, often has insurance implications, and frequently pairs with a panel upgrade. Costs rise with plaster walls and limited access.
Does whole house rewiring include drywall repair?
Often not in the base quote. Many rewiring estimates cover only the electrical work and list drywall or plaster repair, painting, and cleanup separately — which can add several thousand dollars. Always ask for an itemized quote so you know whether wall repair is included before comparing bids.
How long does it take to rewire a house?
A full whole-home rewire typically takes one to three weeks, depending on home size, accessibility, and crew size. Homes with plaster walls or limited access take longer, while smaller or partial jobs go faster. Your electrician gives a timeline after assessing the home.
Does rewiring require a permit in Michigan?
Yes. Rewiring is permitted electrical work in Michigan, requiring a permit and an inspection to confirm the work meets code. A reputable electrician pulls the permit as part of the job and schedules the inspection. Permit costs typically run a few hundred dollars.
Conclusion
Whole house rewiring cost in Michigan comes to $10,000 to $30,000 for most homes, with mid-size homes usually $12,000 to $18,000 — but the real number turns on accessibility and the wiring being removed as much as square footage. Get an itemized quote that spells out wall repair, permits, and any panel upgrade, budget a cushion above the base estimate, and you’ll know exactly what you’re paying for. For a home with old or unsafe wiring, it’s an investment that pays back in safety, insurability, and a home finally wired for how you actually live.
Ready for an honest, itemized rewiring quote?
IB Electric assesses your home, prices every line, and rewires it to code — across Wayne, Oakland, and Macomb counties. Request your quote or call (313) 274-3588.
Every line item a complete rewiring quote should include — so you can compare bids fairly and spot what’s been left out.
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