
Complete Guide to Electrical Panel Upgrades in Northern Virginia
Everything Northern Virginia homeowners need to know about electrical panel upgrades, including signs you need one,...

Property-specific electrical panel replacement and service-capacity planning, with load calculations, utility coordination, labeling, and permit-path confirmation. Trusted by homeowners throughout Anne Arundel County since 1996.
An electrical panel project should start with the condition of the existing equipment and the loads the home needs to support. AJ Long Electric documents the panel, service conductors, grounding and bonding, breaker configuration, available space, and visible signs of heat or damage. A load calculation helps determine whether the project calls for a like-for-like replacement, additional distribution capacity, or a service upgrade. When the scope affects utility-owned equipment, the meter, or service conductors, that coordination is identified before scheduling. The written proposal separates panel work from optional surge protection, branch-circuit corrections, finish work, and other conditions that cannot be confirmed until the system is evaluated. For a Crofton property, the recommendation follows the actual equipment, access, electrical capacity, and project goals documented during the assessment.
Crofton is one of Maryland's original master-planned communities, laid out around its country club and golf course in the early 1960s, and that gives it an unusually uniform panel problem: a core of 1960s-70s colonials and splits still running their original 100-amp service, now asked to carry central air, an EV charger, and a finished basement at once. The other thing that sets Crofton apart from the Prince George's cities a few miles west is the utility — Crofton is on BGE, not Pepco.
AJ Long Electric defines the panel replacements & upgrades scope for the individual Crofton address. The written proposal identifies known conditions, access assumptions, included electrical work, exclusions, and any coordination that must be confirmed before scheduling. Before work begins, we confirm whether the defined scope requires coordination with the Anne Arundel County Department of Inspections and Permits; permit, inspection, and utility responsibilities are stated in the proposal for the address.
The original "Crofton triangle" homes from the 1960s-70s are the heart of panel work here: 100-amp services sized for an era before central air, home offices, and EV charging competed for capacity, with two-prong ungrounded outlets common in the older sections. We move these to 200-amp service ($3,500-$7,500), bring grounding and bonding to current NEC, and — on 1970s-window homes that turn up aluminum branch wiring — apply CO/ALR-rated terminations rather than re-landing it on the new bus as-is. The newer Crofton Meadows, Walden, and Crofton Village subdivisions are a more conventional load-growth upgrade. The utility distinction matters for every job: Crofton is served by Baltimore Gas and Electric (BGE), not the Pepco grid, so we coordinate the BGE meter pull and reconnection. Crofton also sits in a summer-storm corridor, so panel upgrades here are frequently paired in the same visit with a transfer switch, generator-inlet hookup, or battery-backup interlock. The electrical permit runs through the Anne Arundel County Department of Inspections and Permits, with the permit pull, inspection, and final approval handled as part of the job.

Our licensed electricians serving Anne Arundel County
AJ Long Electric documents the existing system before recommending panel capacity or equipment. The written scope distinguishes confirmed work from conditions that require access, utility input, or authority review, giving the homeowner a clearer basis for the decision.
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The proposed panel and service size follow a load calculation and the home's planned electrical use.
Circuit organization and labeling make the system easier to operate and maintain.
Visible damage, incompatible components, crowded wiring, grounding, and service-equipment conditions are addressed in the proposal.
Utility, permit, inspection, and outage requirements are confirmed for the address and defined work.
Future EV charging, HVAC, kitchen, or addition loads can be considered during design.
For panel replacements & upgrades at this Crofton property, AJ Long Electric begins by reviewing the requested outcome, relevant equipment, safe access, and observed electrical conditions. The written proposal identifies the defined work, sequencing, coordination responsibilities, and exclusions. Authorized work is tested and documented to the completed scope; newly exposed conditions are discussed before the scope changes.
| Typical cost in Crofton | $3,500-$7,500 (200A); 400A quoted per projectThe written estimate follows the defined equipment, access, routing, and coordination scope. |
|---|---|
| Typical timeline | Project-specific after service, utility, access, and permit review |
| Permit authority | Anne Arundel County Department of Inspections and PermitsAJ Long Electric confirms the permit and inspection path for the address and states the included coordination in the written proposal. |
| Applicable code standard | NEC Article 408 & 250service equipment, panelboards, grounding & bonding (National Electrical Code, NFPA 70). |
| Most common local condition | Property-specific equipment, access, and electrical conditions are confirmed during the assessment. |
Permit fees, scope, and existing-condition surprises affect final pricing. Verify current requirements with the Anne Arundel County Department of Inspections and Permits and review the NFPA 70 (National Electrical Code).
We document the panel, service equipment, loads, grounding, breaker configuration, and visible conditions.
The recommended capacity and equipment follow the existing and planned electrical demand.
The estimate identifies included equipment, corrections, coordination, access, and exclusions.
Permit, inspection, outage, and utility requirements are confirmed for the address.
The approved equipment is installed, terminated, grounded, bonded, and labeled to the defined scope.
Connections and operation are checked, the directory is reviewed, and applicable closeout steps are completed.
The exact scope depends on the existing service and the load calculation. It may include the panel enclosure, breakers, grounding and bonding corrections, service conductors or meter equipment, labeling, utility coordination, and required inspection work.
We use the home's existing and planned loads, equipment ratings, service configuration, and the applicable calculation method. A larger rating is not automatically the correct answer for every property.
Brand and age alone do not describe the complete condition. A licensed electrician should identify the exact equipment and evaluate damage, breaker compatibility, service capacity, grounding, and the homeowner's planned loads before recommending a scope.
That depends on the service configuration and work boundary. When utility disconnect, meter, or service-entrance coordination is needed, it is identified and scheduled as part of the project plan.
Permit and inspection requirements depend on the address and defined scope. AJ Long Electric confirms the authority and coordination path before work begins.
The equipment, electrical capacity, access, property layout, and local authority can change the scope from one Crofton address to another. AJ Long Electric confirms those conditions and the applicable coordination path before finalizing the proposal.
Cost depends on the equipment, electrical capacity, access, route, corrective work, and local coordination required at the property. AJ Long Electric provides a written estimate after the relevant conditions and project boundary are assessed.
Permit and inspection requirements depend on the address and the defined electrical scope. AJ Long Electric confirms the applicable path with the authority serving the property and states the included coordination in the written proposal.
Timing depends on the defined scope, safe access, equipment and material availability, property conditions, and any permit, inspection, utility, or other-trade coordination. AJ Long Electric confirms the anticipated sequence after the assessment.
AJ Long Electric has served the region since 1996. We are a licensed, insured electrical contractor led by John Long, Master Electrician, and we define the scope, access assumptions, exclusions, and project-specific coordination before authorized work begins.
Scheduling depends on the current workload and the project scope. Call (571) 444-6886 or request an appointment online and we will confirm the earliest available time for your Crofton address.
Crofton is in Baltimore Gas and Electric (BGE) territory, not the Pepco grid that serves the Prince George's County communities to the west. For a 200-amp service upgrade ($3,500-$7,500), AJ Long Electric coordinates the BGE meter pull and reconnection and pulls the electrical permit through the Anne Arundel County Department of Inspections and Permits, so the meter swap and the inspection line up without a hold.
The original Crofton-triangle colonials and splits mostly still carry their 100-amp service, which has no headroom for an EV charger, a heat pump, and a finished basement on top of central air, and many also have 1970s aluminum branch wiring. AJ Long Electric upgrades these to 200-amp service ($3,500-$7,500), applies CO/ALR terminations where aluminum is present, coordinates the BGE meter pull, and permits through the Anne Arundel County Department of Inspections and Permits.
Typical Price Range: $3,500-$7,500 (200A); 400A quoted per project
Contact AJ Long Electric to request a written estimate for the defined Crofton scope.
Discuss panel replacements & upgrades for your Crofton property with AJ Long Electric. Call (571) 444-6886 or request an appointment online so we can confirm the project details and current scheduling availability.
Our licensed electricians are ready to assist you in Crofton.
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See how we have helped homeowners across Northern Virginia with their panel replacements & upgrades in crofton needs.
Challenge
A homeowner in an early-1970s colonial inside the original Crofton triangle wanted a 200-amp service to add a Level-2 EV charger and a heat pump. The walk-through found the original 100-amp panel near capacity and aluminum branch wiring on several 1970s-era circuits — a combination where a like-for-like panel swap would have left the riskier connections in place.
Solution
We replaced the service with a 200-amp panel, coordinated the BGE meter pull, and brought grounding and bonding to current NEC. At each device we tied into, we applied CO/ALR-rated terminations to address the aluminum branch wiring instead of re-landing it on the new bus as-is. The work was permitted and inspected through the Anne Arundel County Department of Inspections and Permits.
Result
The home gained capacity for the EV charger and heat pump on a properly grounded 200-amp service, and the aluminum-wiring connections most prone to overheating were corrected in the same job rather than becoming a separate call later.
We also provide professional panel replacements & upgrades services in these nearby communities.
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Learn MoreRequest a property-specific review for panel replacements & upgrades in Crofton. AJ Long Electric will confirm the relevant conditions, define the proposed electrical scope, and then confirm current scheduling availability.