Electrical wiring is one of the most essential systems in any household. It can be used to light, run appliances, HVAC systems, electronics, and modern smart-home systems. However, wiring over the years can become obsolete, become damaged, or no longer be capable of meeting the electrical needs. When it occurs, homeowners may have to think about rewiring a portion or all of their home. The price to rewire a house will rely on a variety of factors that include the size of the house, the age of the wiring, neighborhood labour rates, access to the house, and whether any additional electrical works are needed.
The average cost of rewiring a home is between $8,000 and $20,000. The cost of home rewiring depends on the project’s location and the level of sophistication. If the wiring in older homes is outdated (knob and tube or aluminum wiring), it may take longer to complete the repairs, adding to the cost.
| Project Type | Average Cost |
| Partial rewiring | $2,000 – $8,000 |
| Small home rewiring | $6,000 – $12,000 |
| Full house rewiring | $8,000 – $20,000 |
| Large home rewiring | $15,000 – $35,000+ |
| Rewiring with panel upgrade | $10,000 – $30,000+ |
Complete House Rewiring Cost Breakdown
The rewiring of the whole building is more than just the replacement of electrical wiring. Accurate planning is essential before starting any electrical renovation. Many contractors use electrical takeoff services to determine the exact quantities of wiring, conduits, outlets, breakers, and other materials required for the project.
1. Wiring Materials
Material costs include electrical cables, connectors, junction boxes, and protective devices.
2. Labor Costs
Rewiring is a high-skilled task, which is often 50% or more of the cost of the project.
3. Electrical Panel Upgrade
When re-wiring an older home, many times the wiring will need to be upgraded to the electrical panel.
4. Outlets and Switches
Typically, projects involve the installation of new outlets and switches.
5. Light Fixtures
Lighting fixtures can be a cost addition.
6. Permits and Inspections
Permits and inspections are required for most jurisdictions for large-scale electrical projects.
Hidden Costs of Rewiring a House
A lot of people only consider the electrician’s quote and forget about the extra costs involved.
1. Drywall Repairs
Electricians frequently make openings in walls and ceilings to access wiring. These are typically patched following.
2. Painting Costs
If there are any drywall repairs, fresh paint might be necessary.
3. Temporary Accommodation
For large projects, house owners may opt to remain elsewhere in the course of construction.
Code Compliance Upgrades
Many older homes must be updated to comply with the current wiring codes.
4. Unexpected Repairs
However, when walls are broken open, changes in structure or wiring may be found that need to be addressed.
House Rewiring Cost by Square Foot
One of the most significant variables in rewiring expenses is the home’s dimensions. A home’s dimensions are among the largest factors that can impact the cost of rewiring. More conduits, labor, outlets, switches, and electrical circuits are needed for bigger houses.
1. Estimated Costs by Home Size
| Home Size | Estimated Cost |
| 1,000 sq ft | $6,000 – $10,000 |
| 1,500 sq ft | $8,000 – $14,000 |
| 2,000 sq ft | $10,000 – $18,000 |
| 2,500 sq ft | $12,000 – $22,000 |
| 3,000 sq ft | $15,000 – $30,000+ |
These estimates are only a rough approximation and may go up if walls are hard to reach and significant code upgrades are required.
House Rewiring Cost by Number of Bedrooms
The cost to rewire a house is often quoted based on the number of bedrooms, which is an easy way of comparing houses of varying sizes.
1. Two-Bedroom House
The cost of rewiring a two-bedroom house is about $6000 to $12000.
2. Three-Bedroom House
The cost range of most three-bedroom houses is $8000 to $15000.
3. Four-Bedroom House
The typical cost of rewiring a 4-bedroom residence is $10,000 to $20,000.
4. Five-Bedroom House
Five-bedroom or larger homes can range from $15,000 to $35,000 or higher.
Cost to Rewire Different Types of Homes
1. Single-Story House
It is more affordable to rewire a single-storey house. Most homeowners can expect to pay between $3,000 and $8,000.
2. Two-Story House
Costs are higher for multi-story residences as work needs to be done on more levels, as well as longer cable runs. The average cost typically ranges from $6,000 to $15,000.
3. Mobile Homes
The size of mobile homes can mean a lower cost to rewire, but can also present accessibility issues at times. Rewiring costs generally fall between $1,500 and $5,000.
4. Historic Homes
Older properties may have antiquated electrical systems and need particular skill to maintain architectural elements. Costs can range from $8,000 to $25,000 or more, depending on the complexity of the work.
5. Townhouses
Townhouses may range in price with respect to size, age, and wall accessibility. Most townhouse rewiring projects cost between $4,000 and $12,000.
Cost of Replacing Different Wiring Types
The existing wiring system in the house plays a significant role in rewiring expenses. Older wiring systems should be handled with care and fully replaced to meet current safety standards.
1. Knob-and-Tube Wiring
Before the 1950’s, knob and tube wiring was usually used in older homes. It should be safe when it was first installed, but it could not be grounded and may not be appropriate for modern electrical needs.
Typical replacement cost: $8,000–$25,000+
A lot of insurance companies will find knob and tube wiring in a home to be a deal breaker if they want to insure it, or they will charge a higher premium to insure the home.
2. Aluminum Wiring
Aluminum wiring was used extensively in the 1960s and 1970s when copper prices were increasing. As time goes on, connections may become loose with aluminum wiring, leading to overheating hazards.
Typical replacement cost: $7,000–$20,000+
3. Cloth Wiring
Older houses may have wiring that is insulated with cloth and can become damaged.
Typical replacement cost: $8,000–$18,000+
4. Modern Copper Wiring
It is now the industry standard to use copper wiring because it’s durable, conductive, and safe.
Cost to Upgrade the Electrical Panel During Rewiring
Older homes may have electrical distribution panels that are too small to meet today’s needs. In a rewiring project, it is common for the panel to be upgraded.
100-Amp to 200-Amp Upgrade
- Most homes only need a 200-amp service.
- Average cost: $1,500–$4,000
200-Amp to 400-Amp Upgrade
- A 400-amp service may be required for large homes or houses with extensive electrical systems.
- Average cost: $4,000–$10,000+
When Is a Panel Upgrade Necessary?
If you experience any of the following, you may need a panel upgrade:
- Breakers trip frequently
- The home has an old fuse box.
- The existing panel has inadequate capacity
- You are looking to install an EV charger
These estimates may increase if walls are difficult to access or if major code upgrades are required.
Factors That Affect House Rewiring Costs
There are several factors that affect the end-of-project cost.
1. Home Age
Older homes typically end up being more expensive to rewire, as the wiring systems are outdated.
2. Accessibility
A finished basement, crawl space, or accessible attic makes rewiring a home typically easier and more cost-effective.
3. Existing Wiring Type
Knob and tube and aluminum wiring can be costly to replace.
4. Number of Circuits
Older homes, of course, have fewer circuits than modern homes because there is more electricity demand.
5. Local Labor Rates
Labor costs for electricians are much different in different areas.
6. Smart Home Features
Smart switches, security, and automation devices can be expensive.
Signs Your House Needs Rewiring
Electrical wiring does not last forever. Rewiring a house may be required to improve its safety and performance if the wiring is outdated or damaged.
1. Flickering Lights
Regular flickering lights may be signs of overloaded circuits or aging electrical wiring.
2. Frequent Breaker Trips
The circuit breakers are used to safeguard the electrical system. Regular visits are an indication of wiring issues.
3. Burning Smells
If there is smoke coming from an outlet or a switch, it is never normal and could be a sign of overheated wires.
4. Use of aluminum or Knob and Tube wiring
Wiring systems need to be replaced in older structures to meet the code requirements.
5. Home Over 40 years Old
Older houses may have electrical systems that were installed for different technologies and appliances than those in use today.
How Long Does It Take to Rewire a House?
Project schedules will vary depending on the home, accessibility, and complexity of the electrical system.
- Small Homes: Typically, it takes 3–7 days.
- Medium-Sized Homes; Usually requires 5–10 days.
- Large Homes: May take several weeks to occur.
1. Occupied vs Vacant Homes
Electricians have free rein when dealing with vacant homes, and they will likely be rewired quickly and easily.
2. Typical Timeline
| Home Size | Estimated Time |
| 1,000 sq ft | 3–5 days |
| 1,500 sq ft | 5–7 days |
| 2,000 sq ft | 7–10 days |
| 3,000 sq ft | 2–4 days |
Can You Live in a House While It Is Being Rewired?
For many situations, there is the option for homeowners to live in the home during parts of the project. But it will depend on how much work is involved.
1. When It May Be Possible
- Partial rewiring projects
- Room-by-room upgrades
- Minor electrical improvements
2. When Moving Out Is Better
- Complete house rewiring
- Extensive wall openings
- A complete change-out of the main electrical panel.
- Significant power interruptions
- Talk with your electrician about what you want to be installed before the project starts.
DIY vs Professional House Rewiring
There are some people who want to rewire their homes to cut costs. But electrical work can be dangerous.
1. DIY Rewiring
Potential advantages:
- Lower Labor Costs
- Increased Scheduling Control
Potential disadvantages:
- Safety Hazards
- Permit Complications
- Inspection Failures
- Insurance Issues
2. Professional Rewiring
Advantages include:
- Code Compliance
- Proper Permitting
- Safety Assurance
- Professional Workmanship
- Warranty Protection
Most homeowners will find professional installation to be the safest and best option.
Does Home Insurance Cover House Rewiring?
There are some policies that will have coverage for electrical repairs due to:
- Fire Damage
- Storm Damage
- Covered Accidents
- These Are Circumstances that Are Not Addressed.
- A Large Number of Policies Exclude:
- Regular Usage and Wear and Tear
- Aging Electrical Systems
- Voluntary Upgrades
- Potential Insurance Benefits
Several insurance companies provide better coverage following the replacement of old wiring.
Does Rewiring Increase Home Value?
The overall value and marketability of a home can be improved by a complete rewiring project.
1. Improved Buyer Confidence
A newer electrical system can be a selling point for buyers.
2. Better Safety
Modern wiring minimises fire hazards and safety issues.
3. Enhanced Energy Efficiency
Modern electrical systems can provide more efficient lighting and appliances.
4. Easier Home Sales
Homes equipped with up-to-date electrical systems might even be able to sell more quickly, as home buyers are not as worried about repairs down the road.
How to Save Money on House Rewiring
Rewiring is a great investment, but it is possible to manage the investment cost.
1. Get Multiple Quotes
Get multiple licensed electrician quotes.
2. Combine Projects
For existing remodels, labor costs can be minimized with the combination of projects.
3. Improve Access
Accessibility of attics, crawl spaces, and workspaces can save laborers.
4. Upgrade All-in-One
It may be more economical to make all the electrical improvements at once rather than having a series of improvements.
5. Carefully Plan the Budget
When going through major home renovations, homeowners commonly seek the advice of a construction estimator to determine the approximate cost of labor, materials, permits, and repairs prior to construction.
Frequently Asked Questions
1. How Much Does It Cost to Completely Rewire a House?
The average cost of a homeowner is $8,000 to $20,000, but it can be more for larger or older homes.
2. Is Rewiring Covered by Homeowners’ Insurance?
Typically, insurance will not pay for rewiring due to age or wear and tear, but will cover damage from a covered event.
3. How Often Should a House Be Rewired?
The life expectancy of most wiring can be 50 years or longer, depending on the quality of installation, maintenance practice, and usage.
4. Can You Rewire a House without Removing Drywall?
While electricians can often get wires through walls and limit the amount of drywall damage, repairs are often a necessity.
5. How Long Does a Full House Rewire Take?
The duration of most projects is 1-2 weeks, and for larger homes, it can take several weeks.
6. Is Rewiring Worth the Cost?
Yes. Rewiring not only helps ensure safety but also helps meet modern electrical requirements and can enhance property value.
7. Does Rewiring Require a Permit?
Permits and inspections are warranted for major electrical work in most jurisdictions.
8. Can I Live in My Home During Rewiring?
This varies depending on the work. Partial rewiring can be done while the homeowner is still at home, or a temporary move to another home while working on a full rewiring project can occur.
Conclusion
A home wiring system upgrade can enhance safety, reliability, and long-term property value and is a significant investment. The price is usually between $8,000 and $20,000, but it can vary based on a variety of factors, including home size, wiring type, accessibility, electrical panel needs, and labor costs. Knowing these costs in advance will help homeowners to budget their costs better and prevent any surprises.
A well-planned rewiring project can offer decades of safe, reliable electrical service, whether you are replacing old knob and tube wiring, upgrading an electrical panel, or modernizing an older home. Homeowners can collaborate with qualified professionals and gain insight into the factors influencing costs to make informed decisions and ensure their electrical system remains both functional and efficient in the present and future.
