Cost to Replace Main Breaker Box Electrical Circuit Panel

Cost to Replace Main Breaker Box Electrical Circuit Panel

September 21, 20249 min read

The cost to replace a main breaker box electrical circuit panel can vary significantly based on several factors, including the type of service panels and whether you’re dealing with newer homes or older structures. One of the most common reason for circuit breaker replacement is a short circuit, which can lead to significant issues, such as fire hazards. A malfunctioning circuit breaker switch can leave an electrical box vulnerable, especially when it stays in the off position or if the circuits are overloaded. This creates an imbalance in the electrical current and can impact the hot bus bar, posing additional risks.

An outdated electric panel can also be a potential fire hazard, especially if you notice common signs of malfunction, such as frequent trips or issues with certain circuits. In newer homes, a 200-amp panel upgrade is often necessary, especially if the home has a larger square footage, as this ensures the entire system can handle modern electrical loads.

The entire process of upgrading or replacing a panel often involves replacing the service panels and assessing the different ways circuits are being used. This type of electrical repair can help mitigate the risk of overloaded circuits while improving safety and functionality. Overall, homeowners should consider upgrading their panels to meet current safety standards and avoid any future issues with the electrical system.

Why Replace an Electrical Panel?

A circuit breaker panel replacement isn’t something homeowners encounter often, but it’s a crucial upgrade when your system begins to show signs of wear, or if you're making major electrical updates. Your home’s electrical panel is responsible for distributing electrical power from the utility company to the individual circuits that power lights, outlets, and appliances throughout your home.

Cost to Replace Main Breaker Box Electrical Circuit Panel

Here are some of the most common reasons homeowners opt for an electrical panel upgrade or replacement:

1. Overloaded Circuit

One of the most common reasons for replacing an electrical panel is due to overloaded circuits. Older homes, in particular, often have smaller amp panels (such as 60-amp or 100-amp panels), which are not equipped to handle the electrical demands of modern homes filled with electronics and appliances that consume a lot of power.

As homeowners add new appliances like air conditioners, refrigerators, or EV chargers, the circuit breaker box may become overloaded. This can cause short circuits, tripped breakers, or, in the worst cases, electrical fires. Upgrading to a 200-amp or 400-amp panel can help prevent these issues by providing much power to meet the increased demand.

2. Old or Faulty Panels

If your home has an old panel, especially if it's from decades ago, there’s a good chance that it's not up to current safety standards. Older homes built before the 1960s may have fuse boxes instead of breaker boxes. Fuse boxes can be less safe because they don't trip like breakers; instead, fuses blow out, requiring replacement each time an electrical overload occurs.

Some old circuit breaker models have been found to have significant safety issues. Federal Pacific Electric and Zinsco panels, for example, are notorious for not tripping when necessary, which increases the risk of fire. If you have one of these panels, replacing it with a modern electrical panel is highly recommended.

3. Home Renovations or Additions

If you're remodeling or adding on to your home, it’s a good time to consider an electrical panel upgrade. Adding additional outlets, new rooms, or large appliances will increase your electrical load. Your current panel may not have the capacity to handle the extra demand. In these cases, adding additional circuits or upgrading to a larger circuit breaker panel is often necessary to prevent future issues.

4. Insurance Requirements

Some insurance companies may require you to upgrade your electrical panel if it is outdated or no longer meets local safety codes. Old panels and outdated fuse boxes can pose significant electrical hazards, and some insurers will not cover homes with panels they consider unsafe. In these cases, replacing the panel may be necessary to meet insurance requirements.

Understanding the Costs of Electrical Panel Replacement

Cost to Replace Main Breaker Box Electrical Circuit Panel

1. Cost Factors

The total cost of replacing a main breaker box or electrical panel can vary significantly depending on several factors. Here are some key cost drivers:

  • Type of panel: The size and type of electrical panel you choose (such as 100-amp, 200-amp, or 400-amp panels) will have a big impact on the cost. Upgrading from a smaller panel to a 200-amp or 400-amp service will be more expensive but necessary for many modern electrical needs.

  • Labor costs: Replacing an electrical panel requires specialized knowledge, and the labor costs for hiring a licensed electrician can range from $50 to $150 per hour depending on your region. Labor costs typically account for a significant portion of the total bill.

  • Location: If the breaker box is located in a difficult-to-access area, such as a basement or attic, this could increase the cost. Homes with larger square footage may require more electrical work, and local building codes may also dictate specific requirements that could add to the expense.

  • Additional electrical work: Often, electrical panel replacement includes updating other components such as bus bars, circuit breakers, and wiring. You may also need to add new circuits to accommodate modern appliances, which can add to the cost.

  • Permits and inspections: Most cities require permits for electrical work, and the permit fees can range from $50 to $300. After installation, an inspection is often required to ensure the electrical work meets local safety standards.

2. Average Costs for Electrical Panel Replacement

For a standard 200-amp panel, which is sufficient for most modern homes, the average cost for the replacement process is typically between $1,500 and $4,000. This includes the cost of the new panel, labor, and any necessary updates to the wiring or meter box.

Here’s a breakdown of costs based on the type of panel:

  • 100-amp panel: $1,200 to $2,500

  • 200-amp panel: $1,500 to $4,000

  • 400-amp panel: $3,000 to $6,000

If you're upgrading from a 100-amp panel to a 200-amp panel, you may also need to upgrade the meter box, which could add $500 to $1,500 to the total cost.

3. Additional Costs for New Breakers

In addition to replacing the main panel, you’ll also need to ensure that the individual circuit breakers are in good condition. If your old panel has breaker switches that are outdated or faulty, these may need to be replaced as part of the upgrade. The cost of new breakers can range from $30 to $50 per breaker, depending on the number of circuits and the specific type of new breaker needed (such as ground-fault circuit interrupters or arc-fault circuit interrupters).

4. Service Panel Upgrade Costs

In some cases, homeowners may need a complete service panel upgrade to increase the amount of power coming into the home. This is particularly common when upgrading to a 400-amp panel, which requires coordination with the power company to ensure that the incoming electrical service can support the additional load.

For older homes, a service panel upgrade may also involve updating electrical circuits, grounding systems, and replacing outdated wiring to comply with modern safety standards. This type of upgrade can cost anywhere from $3,000 to $8,000, depending on the extent of the electrical work required.

The Replacement Process

1. Step-by-Step Replacement Process

The process of replacing your main breaker or electrical panel involves several steps, and hiring a licensed electricianis essential to ensure the work is done safely and correctly.

Step 1: Assessing Your Electrical Needs

The first step in replacing your electrical panel is determining whether an upgrade is necessary. Your electrician will evaluate the number of circuits in your home, check for any loose connections or short circuits, and assess whether your current panel can handle your electrical load.

If you’re experiencing frequent tripped breakers, overheating, or your circuit breaker panel cover is hot to the touch, these are warning signs that an upgrade or replacement is needed.

Step 2: Choosing the Right Panel

Once the electrician has assessed your home’s electrical load, they will recommend the appropriate type of panel. For most modern homes, a 200-amp panel is sufficient. However, if you plan to add new appliances, electric vehicles, or solar panels in the future, it may be a good idea to upgrade to a 400-amp panel for added capacity.

Step 3: Permits and Approvals

Before the replacement process begins, your electrician will likely need to obtain a permit from your local building authority. This ensures that the electrical work complies with local building codes and passes safety inspections after installation.

Step 4: Shutting Off Power

The next step in the process is shutting off the power to your home. This may require coordination with the power company to ensure that no electricity is flowing to the house while the electrical panel replacement is in progress. As a safety precaution, the electrician will ensure all circuits are turned off before beginning any work.

Step 5: Removing the Old Panel

The electrician will then disconnect all electrical circuits from the old panel, remove the main breaker, and safely take down the old circuit breaker. This is a delicate process, as improper handling could cause electrical shock or damage to the surrounding wiring.

Step 6: Installing the New Panel

Once the old panel is removed, the electrician will install the new circuit breaker panel. They will secure it to the wall, connect the main breaker, and attach the individual circuits. At this point, any necessary upgrades, such as adding ground-fault circuit interrupters, new breakers, or upgrading bus bars, will be completed.

Step 7: Final Testing and Inspection

After installation, the electrician will test the new panel to ensure everything is working properly. This includes checking the flow of electricity through the circuits, ensuring no loose connections, and testing individual breaker switches. Once the testing is complete, the installation will be inspected by a city or state official to confirm compliance with local building codes.

2. Potential Hazards

It’s important to understand the potential hazards of working with an electrical panel. Improper installation or failure to upgrade an old or faulty panel can lead to electrical fires, short circuits, and other dangerous issues. This is why it’s essential to hire an experienced electrician who knows the intricacies of electrical components and safety protocols.

Replacing a main breaker box can vary depending on the size of your home, the type of panel you choose, and the amount of electrical work required. Whether you’re upgrading from a fuse box to a modern breaker box, or simply replacing an old or faulty panel, this is an investment in both the safety and efficiency of your home’s electrical system.

Upgrading to a new electrical panel is not just about meeting the demands of modern appliances; it’s also about preventing electrical hazards and ensuring that your home remains safe and compliant with local building codes.


Branden Bassett is the Chief Electrician at Bassett Electric.

Branden Bassett

Branden Bassett is the Chief Electrician at Bassett Electric.

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