Cost guide
What rewiring a house costs in St. Charles
This is the most expensive residential electrical project and the one with the widest spread, because the cost is driven less by the wiring than by what stands between us and the wiring.
- Partial rewire: $4,000 – $12,000
- Whole-home: $12,000 – $35,000+
- Knob and tube adds complexity
- Staged options available
Typical ranges
What it runs in St. Charles
Planning ranges for St. Charles County, inclusive of labor, materials and permit.
Partial rewire, accessible
$4,000 – $12,000
Targeted circuits — kitchen, baths, bedrooms — where attic or basement access makes fishing straightforward.
Whole-home, 1,200–1,800 sq ft
$12,000 – $22,000
Every circuit replaced. Single story with good access sits at the low end; two stories with finished space above pushes higher.
Whole-home, larger or difficult
$22,000 – $35,000+
Two or more stories, plaster walls, balloon framing, or a historic home where openings must be minimized and patched carefully.
Knob and tube replacement
Similar, plus removal
Often overlaps with a whole-home rewire. Abandoning in place versus removing changes the number, and insurers may care which.
Panel included
Add $1,800 – $6,500
A rewire almost always includes a panel replacement or service upgrade, since the old panel cannot support the new circuit count.
Ranges are estimates for planning only and are not a quote or an offer. Your firm price is confirmed on site.
What drives the number
Access, more than anything
Attic and basement access makes fishing possible without opening walls. A two-story with finished space above and below is the expensive case.
Wall construction
Drywall patches easily. Plaster and lath in Old Town homes does not, and minimizing openings takes far more time.
Balloon framing
Common in pre-1930s construction. It can help — long open cavities — or hurt, when fire blocking interrupts the run.
Circuit count
A modern rewire adds far more circuits than the house had. Dedicated kitchen, bath, laundry and appliance circuits are code now.
Occupied or empty
Working around a family living there costs more in time and protection than an empty house between owners.
Patching scope
We patch access openings. Plaster restoration and painting is usually a separate trade, and we say which is which in the quote.
The honest answer
Staged rewiring
The number above is real, and there is a way to approach it that does not require all of it at once.
For an occupied historic home, staging is often the right call. We take the highest-risk circuits first — anything under insulation, kitchen and bath, bedroom circuits, anything visibly deteriorated — and leave the lower-risk runs for a later phase. Each phase is permitted and inspected on its own, and you get a documented improvement in safety immediately rather than after saving for three years. The tradeoff is that staged work costs more per circuit in total, because we mobilize more than once. We will lay out both the all-at-once number and a staged plan with phase pricing, and you can decide which fits. What we will not do is quote a partial job as if it solved the whole problem.
Common questions
What homeowners ask us
How much does it cost to rewire a house in St. Charles?
A partial rewire typically runs $4,000 to $12,000. A whole-home rewire runs $12,000 to $35,000 or more depending on size, access and wall construction.
Why is rewiring an older home more expensive?
Access. Plaster walls, finished space above and below, and balloon framing all make fishing new cable slower, and minimizing wall openings is skilled, time-consuming work.
Does the price include a new panel?
Usually not in the base figure. A rewire almost always needs one, so plan on adding $1,800 to $6,500 depending on whether it is a swap or a service upgrade.
Do I have to move out?
Not usually. We work room by room and keep power on to the rest of the house. Expect some rooms to be without power during their phase.
Can it be done in stages?
Yes, and for an occupied historic home that is often the better plan. It costs somewhat more overall but spreads the disruption and the expense.
Free estimate
Get a real number for your home
Guides are for planning. For an actual price, tell us what you have and we will give you a firm number.
Related: whole-home rewiring, knob and tube rewiring, knob and tube explained, panel upgrade cost, wiring a historic home
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