A whole-home rewire is the biggest residential job most electrical contractors will ever bid. It's also the easiest one to misprice. Customers see "rewire" as a single line item. Contractors know it's a series of jobs that all happen at once, each one with its own pricing logic.

This article walks through how a typical whole-home rewire actually prices, in 2026, for a Philadelphia metro market. The structure works in any market once you adjust your inputs.

What "whole-home rewire" actually means

The phrase covers more ground than most customers realize. A real whole-home rewire usually includes:

  • Replacing all the branch circuit wiring throughout the house
  • New devices (outlets, switches, fixtures or fixture cans) to match the new wiring
  • A new panel, often combined with a service upgrade
  • Bonding and grounding brought up to current code
  • Smoke detectors, AFCI/GFCI protection, and any other code-required additions
  • Permit, inspection, and final walkthrough

Some scopes also include drywall repair (almost always a separate trade or a separate quote), and some don't. Some include lighting fixtures themselves, some price labor only and let the homeowner buy fixtures. Lock the scope before you quote anything.

The per-room pricing model

The cleanest way to price a rewire is room by room. Each room has its own scope and its own number, and the total is the sum.

For Philadelphia metro pricing in 2026, typical per-room rewire pricing:

  • Average bedroom: $2,800
  • Average bathroom: $1,870
  • Average kitchen: $3,790

The kitchen is the most expensive because of the multiple dedicated circuits required by code (two small-appliance circuits, dishwasher, disposal, microwave, fridge, range), the GFCI protection across all receptacles, and the typical higher fixture count. The bathroom is the cheapest residential room because it's small and has fewer required circuits, though every receptacle in there has to be GFCI-protected.

Living rooms, dining rooms, and family rooms typically price like a bedroom or slightly higher, depending on size and outlet count. Hallways, closets, and small utility rooms are usually folded into adjacent room pricing rather than priced separately.

A sample home: 3 bed, 2 bath, kitchen, living room, dining room

Let's work through a typical 1,800-square-foot, two-story home.

Per-room rewire pricing:

  • 3 bedrooms × $2,800 = $8,400
  • 2 bathrooms × $1,870 = $3,740
  • 1 kitchen × $3,790 = $3,790
  • 1 living room (priced as bedroom equivalent) = $2,800
  • 1 dining room (priced as bedroom equivalent) = $2,800

Subtotal for room rewire: $21,530

Add the panel and service work:

  • 200-amp service upgrade with new panel = $7,460
  • Surge protector (SPD Type 2) = $760

Subtotal for panel/service: $8,220

Plus typical add-ons:

  • Hardwired smoke/CO detectors throughout = $1,200 to $1,800
  • Whole-house safety evaluation, documentation = $1,220
  • Permits and inspection coordination = $400 to $800

Total typical project: $32,000 to $34,000

That's the high end of a "small home" rewire. A larger four-bedroom Colonial with a finished basement and a few extra bathrooms can run $45,000 to $60,000 or more.

Why per-room pricing works better than per-square-foot

Some contractors and most customers want to think in dollars per square foot. It's intuitive and easy to compare across houses. The problem is that per-square-foot pricing hides the work.

A 200-square-foot bedroom and a 200-square-foot bathroom take very different amounts of time and material to rewire. A 400-square-foot kitchen takes way more than two bedrooms. Square footage is a poor proxy for actual work.

Per-room pricing forces the conversation to be about scope. The customer can ask "what's included in the kitchen rewire" and get a real answer. They can also see why the kitchen is more expensive than a bedroom of the same size, which builds trust instead of suspicion.

For the same reason, per-room pricing makes it easier to phase the work if the customer can't afford the whole house at once. They can rewire the kitchen and bathrooms now and the bedrooms next year. With a square-footage quote, that conversation is much harder.

What pushes the price higher

Plaster and lath walls. Older homes with plaster instead of drywall are dramatically harder to rewire. Fishing wire through plaster is slower, the dust is a nightmare, and the patches afterward are more involved. Add 25-40% to per-room pricing for plaster homes.

Knob and tube wiring throughout. If the existing system is old K&T, you're not just installing new wire, you're carefully demolishing the old system. Insurance issues are also in play (most insurers won't cover a home with active K&T). The knowledge that the homeowner has been told they need to do this by their insurance company changes the conversation. Add 15-25% to per-room pricing.

Aluminum branch wiring. Older aluminum branch circuits create a special set of problems even for a rewire job. The connections to existing devices may be deteriorating, and the customer may need to live with partially-aluminum wiring during the project. This is more of a sequencing issue than a pricing issue, but it adds time.

Two-story homes with poor attic access. If the second-floor ceilings are below an attic with low headroom and full insulation, second-floor rewires get expensive fast. You're running wire from the attic down, fishing through walls blind, and dealing with ventilation. Some contractors add a "second-floor multiplier" to their pricing for these scenarios.

Finished basement. If the basement is finished and the customer wants those circuits replaced too, that's effectively another floor of rewire. Often $5,000 to $10,000 on top of the upstairs.

Custom lighting plans. A homeowner who wants a designer kitchen lighting layout (under-cabinet, in-cabinet, recessed grid, pendants) is asking for a kitchen scope well above $3,790. Same for "smart home" rewires where every switch becomes a smart switch and every receptacle is replaced with a USB-integrated version.

Drywall repair included. If the customer wants you to handle drywall patching, add $3,000 to $8,000 to the project depending on the home size and the access cuts. Most rewire projects make 30-100 access cuts in walls and ceilings.

Permit complexity. Most municipalities want a single rewire permit, but some require separate inspections at rough-in and finish for every circuit. That's two inspector visits per circuit area instead of one.

What pulls the price lower

The home is gutted. If the rewire is happening during a major renovation where drywall is already off, you're saving the access cuts, the fish work, and the dust mitigation. Same wiring scope, much faster install. Per-room pricing can drop 25-40%.

Partial rewire instead of whole-home. Sometimes the customer only needs the kitchen and bathrooms, or only the second floor. The job is much smaller and the per-room logic still applies. Quote what they need, not what they don't.

Single-story home. One-floor ranches are dramatically faster to rewire than two- or three-story homes. Same room count, less attic-and-walls navigation.

Existing 200A service. If the home already has a 200A service and a modern panel, you're skipping the $7,460 service upgrade and just doing the branch wiring.

Customer supplies their own fixtures. If they're buying the lights and fans themselves, you're quoting labor only on the fixture installs. Lower price, less margin, and frequently more aggravation when they buy the wrong stuff. But the option exists.

The conversation with the customer

Whole-home rewires are emotional. The customer is usually facing this because something happened: an insurance audit, a failed inspection, a fire, a near-miss with old K&T. They're stressed, they don't want to spend $32,000, and they're going to push hard on the price.

The contractor who wins these jobs isn't the cheapest. It's the one who walks the customer through the scope room by room, explains what's required by code vs. what's optional, and gives them a written breakdown they can actually understand.

The contractors who lose these jobs (or who do them and lose money) are the ones who quote "$25,000 for the rewire" and try to figure the rest out as they go.

Why a flat rate book is essential for jobs this big

A whole-home rewire is the worst possible job to price by feel. There are too many line items, too many edge cases, and too much money on the table. A bid that's $3,000 too low on a $30,000 job is a bid that loses you a month of weekends to a job that doesn't pay.

The fix is a system. A flat rate book breaks the rewire into the room-by-room and panel-by-panel pieces it actually is, prices each one consistently, and adds up to a defensible total. When the customer asks "why is the kitchen $3,790 and not $2,800 like the bedroom," you have a real answer because there's a real reason.

If you're building your own rewire pricing logic, that's a long project. The Electrician Flat Rate Price Book already covers per-room rewire, panel upgrades, smoke detector installs, and the dozen other line items that make up a real whole-home job, all priced from the same labor and overhead inputs.

The bottom line

A typical 3 bed, 2 bath whole-home rewire with service upgrade lands around $32,000 to $34,000 in a Philadelphia metro market. Larger or more complex homes run $45,000 to $60,000 and up.

The price is built room by room, not by square foot. Each room has a defensible scope and a defensible price. Plaster, K&T, finished basements, two-story homes with bad attic access, and custom lighting all push the number higher. Gutted renovations, single-story layouts, and existing 200A services pull it lower.

The contractors who quote these jobs profitably are the ones with a system behind every number. Memory and gut feel don't scale to a $30,000 bid.

Frequently Asked Questions

How long does a whole-home rewire take?
For a typical 3-bed home, plan for 2 to 3 weeks of work for a single experienced contractor with a helper. Larger homes can run 4 to 6 weeks. The schedule depends on access (gutted vs. lived-in), the trade coordination if drywall is being done after, and inspector availability for rough-in and finish.

Do customers need to move out during a rewire?
Usually not, but power will be off in sections of the house at various times. Most customers can stay if they're patient. Some choose to move out for the rough-in week when the most disruption happens.

Should I quote drywall repair separately?
Yes, almost always. Drywall is a separate trade and a separate skill set. Most electrical contractors who try to handle drywall as part of the job either lose money on the patching or do mediocre patching that the customer complains about. Quote labor and materials only, and recommend a drywaller.

What about insurance? Do I need a special policy for jobs this size?
Your standard general liability and workers' comp should cover a whole-home rewire as long as your policy limits are appropriate. The bigger insurance question is for the homeowner: their homeowner's insurance often won't cover damage during major renovation work, and they should talk to their carrier before the project starts.

What if the customer can only afford half of it now?
Phase it. Quote each phase separately. The most common phasing is panel and kitchen first (because kitchens are highest fire risk and most-used rooms), then bedrooms and living areas later. Per-room pricing makes phasing easy, and the customer can budget over time.