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Electrical Service Upgrades
Premium Electrical Service

Electrical Service Upgrades in Northern Virginia | Expert Installation

Upgrade your home's electrical service from the utility meter to the main panel.

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 service is the backbone of your entire home's power system, encompassing everything from the utility transformer connection through the meter base, service entrance cables, and main panel. When your home's electrical demands exceed the capacity of your existing service, you need a complete service upgrade -- not just a panel swap. AJ Long Electric performs comprehensive electrical service upgrades throughout Northern Virginia, coordinating directly with Dominion Energy for meter disconnects, reconnects, and service capacity increases. Many Northern Virginia homes built in the 1960s through 1980s still operate on 100-amp or even 60-amp service that cannot safely support modern electrical demands including EV chargers, heat pumps, electric cooking, home offices, and multiple high-draw appliances. Our licensed electricians upgrade service entrance cables, meter bases, weatherheads, grounding electrode systems, and main panels as a complete, integrated project. We handle all coordination with Dominion Energy, obtain permits from Fairfax County, Loudoun County, Prince William County, Arlington, or your specific jurisdiction, and ensure the installation meets current NEC standards. A typical service upgrade from 100A to 200A or from 200A to 400A involves replacing the service entrance conductors, upgrading the meter base, installing a new main panel, and verifying the grounding electrode system meets NEC 250 requirements. We complete most residential service upgrades in 1-2 days with minimal disruption.

Increased Capacity

Support modern electrical demands including EV chargers, heat pumps, and high-draw appliances without overloading.

Safety

Replace aging service components that may be deteriorated, undersized, or no longer meeting safety standards.

Utility Coordination

We handle all communication and scheduling with Dominion Energy for meter work.

Complete Solution

Service entrance cables, meter base, panel, and grounding are all upgraded as an integrated project.

Future Ready

Proper service sizing accommodates future additions, EV chargers, and electrification of heating and cooking.

Signs You Need This

Your home has 100-amp or 60-amp electrical service
You want to install an EV charger but lack panel capacity
Your service entrance cable is old, damaged, or undersized
The meter base is rusted, damaged, or outdated
Dominion Energy has flagged issues with your service connection
You are adding a major addition that exceeds current service capacity
You are electrifying your home (heat pump, electric range, EV charger) and need more capacity
Your panel is full and you cannot add more circuits without increased service

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

Electrical service upgrades in Northern Virginia are driven by two converging forces: an aging housing stock with undersized electrical service and a rapid shift toward home electrification. Thousands of homes across Fairfax County, Arlington, and Falls Church were built in the 1950s through 1970s with 60-amp or 100-amp service that was adequate for the lighting and small appliances of that era but cannot support today's demands. The region's embrace of electric vehicles, with Northern Virginia consistently ranking among the top metro areas for EV adoption, is pushing homeowners to upgrade service to accommodate Level 2 chargers drawing 40-50 amps. Dominion Energy's service territory covers all of Northern Virginia, and their interconnection requirements for service upgrades are well-established, with defined processes for meter disconnects, service capacity increases, and transformer upgrades. The utility's Virginia Clean Economy Act commitments are further encouraging electrification, driving demand for larger electrical services. Local jurisdictions maintain rigorous permit and inspection processes that ensure service upgrades meet the latest NEC standards adopted by the Virginia Uniform Statewide Building Code. Northern Virginia's high property values, averaging well above national medians, make service upgrades a sound investment that supports both current electrical needs and future home value.

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

Electrical Service Upgrades Case Studies

See how we have helped homeowners across Northern Virginia with their electrical service upgrades needs.

60-Amp to 200-Amp Service Upgrade in Pre-War Colonial

colonial
Colonial home in Falls Church, Fairfax County

Challenge

A 1948 colonial still had its original 60-amp service with a fuse box and cloth-insulated service entrance cables. The homeowner wanted to install central air conditioning and a Level 2 EV charger, but the 60-amp service could barely handle the existing load. Dominion Energy had flagged the corroded weatherhead during a routine inspection.

Solution

AJ Long Electric performed a complete service upgrade from 60A to 200A, replacing the weatherhead, service entrance cables, meter base, and main panel. We installed a new Square D 200-amp panel with 40 spaces, upgraded the grounding electrode system with two new ground rods, and coordinated with Dominion Energy for the service drop reconnection.

Result

The home now has modern 200-amp service with ample capacity for the new central AC, EV charger, and future additions. The homeowner's insurance premium dropped after the fuse box was eliminated, and the property value increased with the modernized electrical system.

Overhead to Underground Service Conversion

townhome
Townhome community in Centreville, Loudoun County

Challenge

A townhome community was converting from overhead to underground utility service as part of a neighborhood improvement project. Each unit needed a new underground service lateral, updated meter base, and coordination with both the HOA and Dominion Energy. The homeowner took the opportunity to upgrade from 100A to 200A service simultaneously.

Solution

We installed a new underground-rated meter base, ran the service entrance conductors through PVC conduit to the underground lateral termination point, and upgraded the main panel from 100A to 200A. We coordinated with the HOA's general contractor for trenching and with Dominion Energy for the underground service connection.

Result

The overhead service lines and weatherhead were eliminated, improving the unit's appearance and eliminating storm damage risk to the service entrance. The upgraded 200-amp service provides capacity for the homeowner's EV charger and planned kitchen renovation.

Storm-Damaged Service Entrance Emergency Replacement

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

Challenge

A large tree branch fell during an ice storm and tore the service entrance cables and weatherhead from the side of the house, leaving the family without power. Dominion Energy disconnected the service at the pole for safety, but the homeowner's existing 100-amp service components were too damaged to simply reattach -- the meter base was cracked and the service entrance cable insulation was shredded.

Solution

AJ Long Electric responded within hours, coordinating with Dominion Energy for an emergency service restoration timeline. We replaced the weatherhead, mast, service entrance cables, and meter base, upgrading from 100A to 200A service since all components were being replaced anyway. We expedited the permit through Prince William County's emergency process.

Result

Power was restored within 36 hours of the initial damage, with the home now upgraded to 200-amp service. The emergency permit was closed with a passed inspection, and the homeowner gained significant capacity improvements from what started as a storm damage repair.

200-Amp to 400-Amp Service for Full Home Electrification

estate
Estate property in Leesburg, Arlington County

Challenge

The homeowners were fully electrifying their 6,000 sq ft estate, replacing a propane furnace with dual heat pumps, converting a gas range to induction, adding three EV chargers for their vehicle fleet, and building a heated pool with an electric heat pump. A detailed load calculation showed their 200-amp service would be approximately 40% over capacity with all planned additions.

Solution

We upgraded the service to 400 amps with a CT metering cabinet, two 200-amp main panels, and coordination with Dominion Energy for a transformer upgrade on the utility side. The underground service lateral was upsized with 500 MCM aluminum conductors, and we installed a comprehensive grounding electrode system with ground rods, Ufer ground, and water pipe bond.

Result

The estate now operates entirely on electricity with 400-amp service providing ample capacity for all systems. The homeowner eliminated their propane deliveries entirely, and the three EV chargers can all charge simultaneously overnight without load concerns. Dominion Energy confirmed the transformer upgrade supports the increased demand.

Permits & Compliance

Permit & Jurisdiction Guide

Permit requirements for electrical service 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 service upgrades, submitted through Land Development Services. The permit application requires a load calculation, service size specification, and sometimes a site plan for underground conversions. Approval typically takes 3-5 business days, and Dominion Energy requires a copy of the approved permit before scheduling reconnection.

Inspection Notes

Fairfax inspectors perform a thorough review of the service entrance, meter base, panel, and grounding system. They verify conductor sizing matches the service rating, the meter base is properly sealed and grounded, and the grounding electrode system meets NEC 250 requirements.

Special Requirements

Load calculation documentation must be available at inspection
Service entrance cables must be properly secured with approved straps at required intervals

Loudoun County

Permit Required

Permit Process

Loudoun County processes service upgrade permits through the Department of Building and Development. Underground service conversions may require an additional site plan review. Permit approval typically takes 3-5 business days, with expedited review available for storm damage repairs.

Inspection Notes

Loudoun inspectors verify the complete service entrance from the weatherhead or underground lateral to the main panel. They check conductor sizing, meter base installation, grounding electrode system, and proper panel installation.

Special Requirements

Underground service laterals must meet minimum burial depth of 24 inches per NEC
HOA approval may be required for changes to exterior service equipment appearance

Prince William County

Permit Required

Permit Process

Prince William County requires electrical permits for all service upgrades through Development Services. The county has an expedited process for emergency storm damage repairs that can approve permits within 24 hours. Standard applications are processed in 2-4 business days.

Inspection Notes

Prince William inspectors check all service components including the meter base seal, weatherhead height, service entrance cable condition, grounding system, and main panel installation. They require the Dominion Energy disconnect before beginning their inspection.

Special Requirements

Emergency service repairs can use the expedited permit process with 24-hour approval
Service mast height must provide minimum clearance above the roofline per NEC 230.24

Arlington County

Permit Required

Permit Process

Arlington County processes service upgrade permits through the Inspections Services Division. Due to the county's dense urban fabric, underground service conversions are encouraged and may receive streamlined review. Standard permits are approved within 1-3 business days.

Inspection Notes

Arlington inspectors are detail-oriented with service entrance installations, checking conductor sizing, proper support and protection, meter base installation, and grounding. They pay particular attention to clearances from windows, doors, and walkways for overhead service entrances.

Special Requirements

Overhead service clearances must meet NEC 230.24 minimums over driveways and walkways
Underground conversions require coordination with county right-of-way if crossing public property
Pricing Options

Electrical Service Upgrades Pricing Tiers

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

Standard

$3,500-$5,000

100-amp to 200-amp service upgrade with all essential components for homes needing increased capacity.

  • Upgrade from 100A to 200A service
  • New meter base and weatherhead
  • 200-amp main panel installation
  • Dominion Energy coordination included
Most Popular

Premium

$5,000-$8,000

Comprehensive service upgrade including underground conversion, grounding upgrades, and extended service entrance runs.

  • 100A to 200A or overhead-to-underground conversion
  • New meter base, service entrance cables, and panel
  • Complete grounding electrode system upgrade
  • All permits and inspections included
  • Whole-house surge protection

Complete

$8,000-$14,000

400-amp service upgrade for high-demand homes with extensive electrical loads and multiple panel configurations.

  • 200A to 400A service with CT metering
  • Dual 200-amp main panel installation
  • Dominion Energy transformer coordination
  • Underground service lateral upgrades
  • Comprehensive grounding electrode system
  • Subpanel feeds to detached structures

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

Electrical Service Upgrades by Housing Type

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

Colonial Homes

Common Issues

Original 100-amp or 60-amp service from 1950s-1970s construction is grossly undersized for modern demands
Service entrance cables routed through interior walls may contain deteriorated cloth insulation
Meter base and weatherhead mounted on aging wood siding may have moisture damage behind the equipment

Special Considerations

Colonial homes in Falls Church, McLean, and Vienna often have service entrance components that are 40-60 years old with deteriorated insulation and corroded connections. The service entrance cables frequently route through finished interior walls from the weatherhead to the basement panel, requiring careful planning to replace without damaging plaster or drywall. We coordinate with Dominion Energy to minimize the time the home is disconnected during the upgrade.

How It Works

Our Electrical Service Upgrades Process

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

1

Service Assessment

We evaluate your existing service size, condition, and capacity, and discuss your current and future power needs.

2

Load Calculation

We perform a detailed load calculation to determine the correct service size for your home's requirements.

3

Detailed Proposal

You receive a comprehensive quote covering all components: service entrance, meter base, panel, grounding, permits.

4

Permit & Utility Coordination

We obtain permits and coordinate with Dominion Energy for meter work and service capacity changes.

5

Service Installation

We install the new service entrance cables, meter base, main panel, and grounding electrode system.

6

Utility Reconnection

Dominion Energy reconnects and energizes the new service after our installation is complete.

7

Inspection & Final Testing

We schedule the county inspection, test all circuits, and verify proper operation of the complete system.

FAQs

Frequently Asked Questions

Get answers to common questions about our electrical service upgrades services.

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

A panel upgrade replaces just the electrical panel (breaker box) inside your home. A service upgrade encompasses the entire power delivery system from the utility connection to the panel, including service entrance cables, meter base, weatherhead, and main panel. A service upgrade is needed when you are increasing your total amperage capacity.

How much does a service upgrade cost in Northern Virginia?

A 100A to 200A service upgrade in the DC metro area typically costs $3,500-$6,000. A 200A to 400A upgrade runs $6,000-$12,000. Costs vary based on the distance from meter to panel, whether underground or overhead service, and specific utility requirements. We provide detailed quotes after a site assessment.

How long does a service upgrade take?

Most residential service upgrades take 1-2 days. Day one typically involves installing the new panel, service entrance cables, and meter base. Day two, if needed, involves Dominion Energy reconnection and final testing. You will be without power during portions of the work, but we minimize outage time.

Do I need Dominion Energy involved in my service upgrade?

Yes, Dominion Energy must disconnect and reconnect the meter for any service upgrade. They may also need to upgrade the transformer or service drop if you are increasing capacity significantly. We handle all coordination with Dominion Energy as part of our service.

What size service do I need for my home?

Most modern homes require at least 200-amp service. Large homes with multiple high-draw systems (EV chargers, heat pumps, electric cooking, pool equipment) may need 400-amp service. We perform a detailed load calculation based on your current and anticipated electrical needs to determine the right service size.

Can I upgrade from overhead to underground service?

Yes, we can convert overhead service to underground as part of a service upgrade. Underground service eliminates the weatherhead and exposed service entrance cables, improving appearance and reducing storm damage risk. Underground conversion costs more due to trenching but is increasingly popular in Northern Virginia.

Will a service upgrade disrupt my power for days?

No, most service upgrades involve 1-2 days of work with power outages limited to the hours when we are actively working on the service entrance and panel. We coordinate closely with Dominion Energy to minimize outage duration and always restore power by end of day.

Does my grounding system need updating during a service upgrade?

Often, yes. Older grounding systems may not meet current NEC 250 requirements. During a service upgrade, we verify your grounding electrode system (ground rods, water pipe bonding, etc.) and upgrade it as needed. Proper grounding is critical for safety and is inspected during the final permit inspection.

Pricing

What Affects the Cost?

Every home is different. Here are the factors that influence pricing for electrical service upgrades services.

Current service size and target upgrade size (100A to 200A, 200A to 400A)
Overhead vs underground service entrance
Distance from utility connection to main panel
Meter base condition and replacement needs
Grounding electrode system upgrades required
Number of circuits to transfer to new panel
Dominion Energy fees for service capacity changes
Permit costs in your jurisdiction

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

1-2 days

Typical Price Range

$3,500-$6,000 (200A); $6,000-$12,000 (400A)

Warranty & Guarantee

All service upgrades include a 1-year workmanship warranty covering service entrance cables, meter base, panel, and grounding system. Components carry manufacturer warranties. We guarantee all work passes inspection and meets current NEC requirements.

Brands & Certifications

Square D by Schneider ElectricSiemensEatonMilbank (meter bases)Dominion Energy Approved ContractorLicensed Virginia Electrician

Maintenance Tips

Visually inspect your meter base and service entrance cables annually for signs of damage, corrosion, or weathering
Maintain 36 inches of clear access in front of your main panel at all times per NEC requirements
Keep vegetation trimmed away from overhead service entrance cables and weatherheads
Have your grounding electrode system checked every 5 years to ensure connections are tight and ground rods are intact
Report any utility-side issues (damaged service drop, leaning pole) to Dominion Energy promptly

Safety Warnings

Service entrance cables carry lethal voltages directly from the utility and remain energized even when the main breaker is off
Only licensed electricians should work on service entrance equipment -- contact with service conductors can be instantly fatal
A damaged or corroded meter base can cause arcing and fire at the service entrance
Never bypass or modify the meter or meter base -- this is illegal and extremely dangerous

Code Requirements

Service entrance conductors must be sized per NEC 310 ampacity tables for the service rating
Grounding electrode systems must meet NEC 250 requirements including proper ground rod installation
Meter bases must be approved by the serving utility (Dominion Energy) and meet NEC 312 requirements
Service disconnects must be accessible and clearly marked per NEC 230.70
Our Promise

Why Choose AJ Long Electric for Electrical Service Upgrades

AJ Long Electric specializes in the complete coordination that electrical service upgrades demand, managing the complex interplay between our installation work, Dominion Energy's utility-side requirements, and your local jurisdiction's permit and inspection processes. Most homeowners have never dealt with a service upgrade and are surprised by the number of parties involved -- our role is to manage all of them so you have a single point of contact. We coordinate Dominion Energy meter disconnects and reconnects, schedule around their availability, handle transformer upgrade requests when needed, and ensure our work aligns with their specific requirements for meter base models, conductor sizing, and grounding. Our electricians have performed service upgrades across every Northern Virginia jurisdiction and know the specific requirements of each county's inspection program. We provide detailed written proposals that break down every component and cost, so there are no surprises when the work begins. Our service upgrade projects include a comprehensive load calculation that accounts for both your current electrical demand and planned future additions, ensuring your new service is sized correctly the first time.

Licensed

Virginia Licensed Electricians

Insured

Fully Bonded & Insured

40+ Years

Serving Northern Virginia

5-Year Warranty

On All Workmanship

Service Areas

Electrical Service Upgrades Available Throughout the DMV

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