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Panel Replacements & Upgrades
Premium Electrical Service

Panel Replacements & Upgrades in Northern Virginia | Expert Installation

Upgrade your home's electrical capacity with safe, modern panel installations.

40+ Years
Licensed & Insured
5-Year Warranty
Same-Day Service
Upfront Pricing
1,200+ Reviews

Why is this important?

AJ Long Team Working

Your electrical panel is the heart of your home's power system. As modern homes demand more energy for appliances, EV chargers, and HVAC systems, older panels can become overloaded and dangerous. Our licensed electricians begin every panel upgrade with a comprehensive load calculation to determine your exact amperage requirements, whether that means a standard 200A service upgrade or a 400A service for larger homes with heavy electrical demands. We coordinate directly with Dominion Energy for meter disconnects and reconnects, handle all local permitting in Fairfax, Loudoun, Prince William, and Arlington counties, and ensure your installation meets the latest NEC 2020 code requirements including AFCI protection. If your home has a Federal Pacific (FPE) or Zinsco panel, replacement is critical -- these brands have documented failure rates exceeding 50% during overcurrent events and are considered serious fire hazards. We install premium panels from Square D, Siemens, and Eaton with copper bus bars, properly rated breakers, and thorough grounding and bonding. Most residential upgrades complete in a single day with minimal disruption, and every installation includes detailed circuit labeling so you always know what each breaker controls.

Increased Safety

Reduce fire hazards from overloaded circuits and outdated breakers.

Future Proofing

Add capacity for new appliances, EV chargers, and home additions.

Home Value

A modern electrical system is a key selling point for property value.

Insurance Compliance

Many insurers require modern panels and may reduce premiums after an upgrade from FPE, Zinsco, or fuse boxes.

Code Compliance

Meet current NEC 2020 requirements including AFCI and GFCI protection for all required circuits.

Signs You Need This

Breakers trip frequently
Lights flicker when appliances turn on
Panel feels warm to the touch
You still have a fuse box
You hear buzzing sounds from the panel
You have a Federal Pacific (FPE) or Zinsco panel
Scorch marks or discoloration around breakers
You smell burning near the electrical panel
Your panel is over 25 years old

Need Help Now?

Our licensed electricians are ready to assist you in Northern Virginia.

Service Areas

Serving Fairfax, Arlington, Alexandria, Loudoun, and Prince William Counties.

Local Expertise

Northern Virginia Service Context

Serving the DMV Region

Fairfax, Arlington, Alexandria, Loudoun & Prince William Counties

Northern Virginia's electrical panel upgrade needs are shaped by the region's unique combination of aging housing stock and rapidly evolving electrical demands. Much of Fairfax County's residential development occurred between 1960 and 1985, leaving thousands of homes with original 100-amp panels -- many of them the now-notorious Federal Pacific and Zinsco brands that insurance companies increasingly refuse to cover. Meanwhile, the DMV area leads the nation in electric vehicle adoption, and Dominion Energy's grid modernization program is pushing more homeowners toward electrification of heating and cooking. The region's hot, humid summers drive heavy air conditioning loads that strain undersized panels, while winter ice storms and summer derecho-strength winds cause power surges that damage equipment in unprotected panels. Northern Virginia's high cost of living means homes here command premium prices, and buyers increasingly expect modern 200-amp or 400-amp service as standard. Local jurisdictions including Fairfax, Loudoun, Prince William, and Arlington counties all maintain active permit and inspection programs, ensuring panel work meets the latest NEC standards adopted by the Virginia Uniform Statewide Building Code.

Licensed in Virginia
Master Electrician
Same-Day Available
Local Since 1985
Real Projects

Panel Replacements & Upgrades Case Studies

See how we have helped homeowners across Northern Virginia with their panel replacements & upgrades needs.

Federal Pacific Panel Replacement in 1970s Colonial

colonial
Colonial home in McLean, Fairfax County

Challenge

The homeowners discovered their 1974 Federal Pacific panel during a home insurance review. The insurer threatened to cancel coverage unless the panel was replaced within 60 days. Several breakers showed signs of overheating and the panel had no AFCI protection.

Solution

AJ Long Electric replaced the FPE panel with a 200-amp Square D Homeline panel with 40 circuit spaces. We transferred all existing circuits, added AFCI breakers for all habitable rooms, and upgraded the grounding electrode system to meet current NEC 250 requirements.

Result

The homeowners retained their insurance coverage and received a 12% premium reduction. The new panel provides room for future additions including an EV charger circuit they plan to add next year.

100A to 200A Upgrade for Growing Family in Townhome

townhome
Three-story townhome in Ashburn, Loudoun County

Challenge

A young family in a 2004 townhome community kept tripping breakers when running the microwave and dishwasher simultaneously. Their 100-amp panel was maxed out with no open slots, and they wanted to add a Level 2 EV charger for their new electric vehicle.

Solution

We coordinated with Dominion Energy to upgrade the service entrance from 100A to 200A, installed a new Siemens 200-amp main breaker panel with 30 spaces, and ran a dedicated 50-amp circuit for the EV charger in the attached garage.

Result

The family now charges their EV overnight without any breaker trips, and the panel has 8 open slots for future needs. The entire project was completed in a single day with power restored by 5 PM.

Zinsco Panel Emergency Replacement After Arcing Event

split-level
Split-level home in Woodbridge, Prince William County

Challenge

The homeowner called us after hearing loud popping sounds and seeing sparks inside their Zinsco electrical panel. A home inspector had flagged the panel two years prior, but the previous electrician said it was fine. The bus bar showed visible arc damage and melted plastic.

Solution

We performed a same-day emergency panel replacement, installing a 200-amp Eaton BR panel. We replaced two circuits with damaged wiring near the panel connections and installed whole-house surge protection to safeguard the home's electronics.

Result

The dangerous Zinsco panel was eliminated and the family was safe that same evening. The county inspector commended the quality of the installation during the follow-up inspection.

400-Amp Service for Luxury Estate with Full Electrification

estate
Estate property in Great Falls, Arlington County

Challenge

The owners of a 7,500 sq ft estate were converting from oil heating to dual heat pumps, adding a pool with electric heater, installing three EV chargers, and building a detached workshop. Their existing 200-amp service was nowhere near sufficient for the planned electrical load.

Solution

AJ Long Electric installed a 400-amp service with a CT metering cabinet, two 200-amp main panels, and a subpanel in the detached workshop. We coordinated with Dominion Energy for a transformer upgrade and ran underground feeders to the workshop building.

Result

The estate now supports all planned electrical loads with capacity to spare. The phased installation was completed over three days, and the property's value increased significantly with the full electrification upgrade.

Permits & Compliance

Permit & Jurisdiction Guide

Permit requirements for panel replacements & upgrades vary by county. We handle the entire permitting process for you.

Fairfax County

Permit Required

Permit Process

Fairfax County requires an electrical permit for all panel upgrades and replacements. Applications are submitted through the Land Development Services online portal, and permits are typically issued within 3-5 business days. The county assigns an inspector who must approve the work before Dominion Energy will reconnect the meter.

Inspection Notes

Fairfax inspectors check AFCI compliance, grounding electrode system, proper torque on connections, and correct breaker sizing. They also verify the panel schedule matches installed circuits.

Special Requirements

AFCI protection mandatory for all habitable rooms on new installations
Panel schedule must be posted inside the panel door

Loudoun County

Permit Required

Permit Process

Loudoun County processes electrical permits through the Department of Building and Development. Permit applications can be submitted online or in person at the Leesburg office. Typical turnaround is 2-4 business days for residential panel work.

Inspection Notes

Loudoun inspectors are thorough with grounding and bonding verification. They require visible access to the grounding electrode conductor and water pipe bond.

Special Requirements

Grounding electrode conductor must be accessible for inspection
Permit card must be posted visibly at the job site during work

Prince William County

Permit Required

Permit Process

Prince William County requires electrical permits through the Development Services department. Online applications are available, and residential panel permits typically process in 2-3 business days. Same-day inspections are often available when scheduled before noon.

Inspection Notes

Prince William inspectors focus on proper wire sizing, breaker compatibility, and NEC compliance. They verify the panel is the correct brand-approved equipment.

Special Requirements

Homeowner permits are not allowed for panel work -- must be a licensed contractor
As-built drawings may be required for service upgrades

Arlington County

Permit Required

Permit Process

Arlington County has a streamlined online permit system through the Inspections Services Division. Residential electrical permits for panel upgrades are typically approved within 1-3 business days. Arlington's compact geography means inspectors can often schedule same-day or next-day visits.

Inspection Notes

Arlington inspectors are detail-oriented and frequently check for proper separation of communication and power wiring, correct panel clearances, and compliance with the latest adopted NEC edition.

Special Requirements

Arlington requires 42-inch clearance in front of panels (exceeding NEC minimum of 36 inches)
All permits expire after 180 days if work is not completed
Pricing Options

Panel Replacements & Upgrades Pricing Tiers

Transparent pricing with options to fit your budget and project scope. Every tier includes our quality guarantee.

Standard

$1,800-$2,800

Panel replacement with same-amperage service for homes that need a safer, modern panel without increasing capacity.

  • 200-amp panel replacement (same service size)
  • Transfer of all existing circuits
  • AFCI breakers for required circuits
  • Detailed circuit labeling
Most Popular

Premium

$2,800-$4,500

Full panel upgrade with service increase from 100A to 200A, including Dominion Energy coordination and all permits.

  • 100A to 200A service upgrade
  • New 200-amp panel with 40 spaces
  • Dominion Energy coordination
  • All permits and inspections included
  • Grounding system verification and upgrade

Complete

$4,500-$8,000

Comprehensive panel and service upgrade for high-demand homes needing 400-amp service or complex multi-panel installations.

  • 200A to 400A service upgrade
  • CT metering cabinet installation
  • Dual 200-amp panel configuration
  • Complete grounding electrode system upgrade
  • Whole-house surge protection included
  • Subpanel installation if needed

Prices may vary based on the specific requirements of your project, the condition of existing electrical systems, and your home's unique characteristics. Contact us for a free, no-obligation estimate tailored to your needs.

By Home Type

Panel Replacements & Upgrades by Housing Type

Different home styles have unique electrical characteristics. Select your housing type to see specific considerations.

Colonial Homes

Common Issues

Original panels from the 1960s-1980s are often Federal Pacific or Zinsco brands requiring immediate replacement
Panels frequently located in finished basements with limited access space
Knob-and-tube wiring remnants discovered during panel work in pre-1950 colonials

Special Considerations

Colonial homes in Northern Virginia often have panels tucked in basement utility rooms or behind finished walls. Access can require drywall removal, and the service entrance routing through multiple floors may need updating. Many McLean and Vienna colonials have 100-amp service that predates modern electrical demands.

How It Works

Our Panel Replacements & Upgrades Process

We follow a proven process to ensure your project is completed safely, on time, and to your complete satisfaction.

1

Free Electrical Consultation

We assess your current panel, discuss your power needs, and evaluate whether you need additional capacity for EV chargers, appliances, or home additions.

2

Load Calculation & Quote

Our electrician performs a detailed load calculation and provides a written estimate with all costs clearly explained, including permit fees.

3

Permit Application

We handle all permit paperwork with your local jurisdiction, whether Fairfax, Loudoun, Prince William, or Arlington County.

4

Utility Coordination

For service upgrades, we coordinate with Dominion Energy to schedule the meter disconnect and reconnect.

5

Panel Installation

Our licensed electricians install your new panel, transfer all circuits, and ensure proper labeling and grounding.

6

Inspection & Energization

We schedule the county inspection and coordinate with the utility to restore power once approved.

7

Final Walkthrough

We demonstrate your new panel, explain the breaker layout, and answer any questions about your upgraded system.

FAQs

Frequently Asked Questions

Get answers to common questions about our panel replacements & upgrades services.

How long does an electrical panel upgrade take?

Most residential panel upgrades in Northern Virginia take 4-8 hours to complete. The timeline depends on factors like panel accessibility, whether we need to coordinate with the utility company for a meter disconnect, and the complexity of your existing wiring. We always complete the work in a single day so you're not left without power overnight.

Do I need a permit for a panel upgrade in Virginia?

Yes, electrical panel upgrades require permits in Fairfax County, Loudoun County, Prince William County, and all Northern Virginia jurisdictions. We handle all permit applications and inspections as part of our service, ensuring your upgrade meets current National Electrical Code (NEC) requirements and passes inspection on the first visit.

What size electrical panel do I need for my home?

Most modern homes require at least 200-amp service. If you have an electric vehicle, plan to add an EV charger, or have a large home with multiple high-draw appliances, you may need 400-amp service. During our free consultation, we perform a load calculation to determine exactly what capacity your household requires.

Should I replace my Federal Pacific or Zinsco panel?

Absolutely. Federal Pacific Electric (FPE) and Zinsco panels are known safety hazards with documented high failure rates during circuit overloads. Many insurance companies refuse coverage or charge higher premiums for homes with these panels. We strongly recommend immediate replacement to protect your home and family.

Will upgrading my panel reduce my homeowner's insurance?

In many cases, yes. Insurance companies view modern 200-amp panels with arc-fault protection as significantly lower risk than older panels. Many homeowners report insurance premium reductions after upgrading from fuse boxes or outdated panels. Contact your insurance provider for specific savings estimates.

Can I add circuits without upgrading my whole panel?

It depends on your current panel capacity and available slots. If you have a 200-amp panel with open breaker slots, we can often add circuits without a full upgrade. However, if your panel is maxed out or undersized, an upgrade may be necessary for safety. Our inspection will determine the best approach.

What is the difference between a panel upgrade and a panel replacement?

A panel replacement swaps your existing panel for a new one of the same amperage, often to address safety issues or worn components. A panel upgrade increases your electrical service capacity, typically from 100 amps to 200 amps, requiring coordination with the utility company and often a new meter base. Both improve safety and reliability.

How much does an electrical panel upgrade cost in Northern Virginia?

Electrical panel upgrades in Northern Virginia typically cost $1,800-$4,500 for a 200-amp upgrade. The price varies based on whether your utility service entrance needs upgrading, the distance from meter to panel, permit costs in your county, and any additional circuits needed. We provide detailed written estimates after our free assessment.

Will I be without power during a panel upgrade?

Yes, power must be disconnected during panel work for safety. Most panel upgrades complete in 4-8 hours, meaning you'll be without power for a single day. We coordinate with Dominion Energy to minimize downtime and always complete work the same day so you have power by evening.

Is my electrical panel a fire hazard?

Certain panel brands are documented fire hazards: Federal Pacific (FPE), Zinsco, Pushmatic, and some Sylvania panels have high failure rates. Signs of danger include scorch marks, burning smells, warm panels, or frequently tripping breakers. If you have any of these concerns, schedule an immediate inspection.

Can I upgrade my panel myself to save money?

No, electrical panel work requires a licensed electrician by Virginia law. Panel upgrades involve working with utility service connections and high-amperage circuits that can cause electrocution or house fires if improperly installed. DIY electrical panel work also voids homeowner's insurance and fails code inspection.

What is arc fault protection and do I need it in my new panel?

Arc fault circuit interrupters (AFCIs) detect dangerous electrical arcs that can cause fires. Virginia code requires AFCI protection for bedrooms, living rooms, and most other living spaces in new installations. Modern panels include AFCI breakers for required circuits, significantly reducing fire risk in your home.

Pricing

What Affects the Cost?

Every home is different. Here are the factors that influence pricing for panel replacements & upgrades services.

Current panel amperage and condition (100A vs 200A upgrade)
Whether utility service upgrade is required
Distance from meter to panel location
Number of circuits to transfer or add
Permit requirements in your specific county
Age and condition of existing wiring
Need for subpanels or additional distribution
Grounding system updates if required

Get Your Free Estimate

Contact us for a no-obligation quote tailored to your specific needs. We provide upfront, transparent pricing with no hidden fees.

Typical Timeline

4-8 hours (single day)

Typical Price Range

$1,800-$4,500

Warranty & Guarantee

All panel upgrades include a 1-year workmanship warranty covering our labor and installation quality. Panels and breakers carry full manufacturer warranties from Square D, Siemens, or Eaton. We stand behind every job with a satisfaction guarantee.

Brands & Certifications

Square D by Schneider ElectricSiemensEatonGenerac (transfer switches)Licensed Virginia ElectricianNEC 2020 Certified

Maintenance Tips

Perform an annual visual inspection of your panel for signs of corrosion, discoloration, or loose connections
Avoid overloading circuits by distributing high-draw appliances across multiple breakers
Verify breaker labeling is accurate and update labels when adding new circuits or appliances
Test all AFCI and GFCI breakers monthly using the built-in test button
Look for scorch marks, melted plastic, or burning smells near the panel and call immediately if found
Keep the panel area clear with at least 36 inches of unobstructed access per NEC requirements

Safety Warnings

Federal Pacific (FPE) and Zinsco panels have documented failure rates exceeding 50% and should be replaced immediately
Never attempt DIY panel work -- electrical panels carry lethal voltages and require a licensed electrician by Virginia law
A panel that feels warm to the touch indicates a serious problem requiring immediate professional attention
A burning smell near your electrical panel is an emergency -- turn off the main breaker and call an electrician immediately

Code Requirements

NEC 2020 requires AFCI protection for bedrooms, living rooms, kitchens, and most habitable spaces
Virginia requires electrical permits and inspections for all panel upgrade and replacement work
Modern homes require a minimum 200A service to support current electrical demands safely
Proper grounding and bonding must meet NEC 250 requirements including grounding electrode system
Our Promise

Why Choose AJ Long Electric for Panel Replacements & Upgrades

AJ Long Electric has performed hundreds of panel upgrades across Northern Virginia, from replacing dangerous Federal Pacific panels in 1970s McLean colonials to installing 400-amp service in Great Falls estates. Our electricians hold Virginia journeyman and master electrician licenses and maintain deep expertise in the specific permit processes of Fairfax, Loudoun, Prince William, and Arlington counties. We handle every aspect of the upgrade including Dominion Energy coordination, permit applications, inspections, and final energization so you never have to make a single phone call to the utility or building department. Our pricing is transparent with no hidden fees, and we provide detailed written estimates before any work begins. We stock Square D, Siemens, and Eaton panels and breakers, ensuring same-day availability for most residential upgrades. Every installation includes a comprehensive load calculation, proper circuit labeling, and a final walkthrough where we explain your new panel and answer every question. Our Google reviews consistently highlight our professionalism, cleanliness, and the quality of our finished work.

Licensed

Virginia Licensed Electricians

Insured

Fully Bonded & Insured

40+ Years

Serving Northern Virginia

5-Year Warranty

On All Workmanship

Service Areas

Panel Replacements & Upgrades Available Throughout the DMV

We proudly provide panel replacements & upgrades services across Northern Virginia, Washington DC, and Maryland. Click on your area to learn more.