
Home Battery Wall Pack Installation in Northern Virginia
A wall pack is silent indoor backup tied to selected circuits. Here is how AJ Long Electric supplies and installs...

Listed home battery and wall-pack installation with panel integration, transfer equipment, circuit selection, and permit-path confirmation. Trusted by homeowners throughout Fairfax County since 1996.
AJ Long Electric provides professional home battery & wall packs services in Herndon, VA. Our licensed electricians have served Fairfax County for over four decades, delivering safe, code-compliant electrical work for homeowners and businesses. With deep experience across every type of residential electrical project, we bring both technical expertise and local knowledge to every job we complete in the Herndon area. In Herndon specifically, we most often work on 1970s-1990s subdivisions plus historic downtown Herndon, where 150-200A panels with room for EV and HVAC additions are common — a backdrop that shapes how we approach home battery & wall packs here.
In neighborhoods like Historic Downtown Herndon, McNair Farms, Heritage Crossing, Westfield, Fox Mill, near landmarks such as Herndon Town Green, Frying Pan Farm Park, W&OD Trail, we have completed countless home battery & wall packs projects. Our familiarity with local building codes, inspection requirements, and the common electrical challenges found in Fairfax County homes ensures your project is completed correctly the first time. On the ground in Herndon, the issue we run into most is added-circuit demand for home offices in Kingstream and Dranesville Station. Because the work is permitted through the Fairfax County Land Development Services, we pull the permit, schedule the inspection, and verify grounding to NEC 250 before we close out — and Fairfax County permit fees apply and are folded into the written estimate.

Our licensed electricians serving Fairfax County
When you choose AJ Long Electric for home battery & wall packs in Herndon, you are partnering with a team that understands your community. We have been serving Fairfax County since 1996, building relationships with homeowners in Historic Downtown Herndon, McNair Farms, Heritage Crossing, Westfield, Fox Mill, and earning a reputation for excellence near Herndon Town Green, Frying Pan Farm Park, W&OD Trail. Our electricians are familiar with the unique electrical challenges in Herndon, including Historic downtown property electrical updates, Panel upgrades for mid-century homes, EV charging for tech-employed commuters. This local expertise means faster service, accurate estimates, and installations that meet both your needs and local code requirements.
Licensed & Insured
Since 1996
5-Star Rated
The design starts with the circuits that matter during an outage, not a one-size whole-house package.
We supply EcoFlow, Bluetti, and Anker SOLIX systems, or connect other listed customer-selected batteries.
Transfer equipment or a smart home panel keeps utility and battery sources from backfeeding each other.
Battery systems produce no exhaust, so they can sit in a garage or utility space without a fuel-burning generator.
Grid and, where the equipment allows, solar recharge are documented in the written scope.
AJ Long Electric supplies and installs listed home battery equipment, or connects customer-selected listed batteries, so selected household circuits stay powered during an outage. The defined scope may include a wall-mounted power station, a backed-up-load panel or smart home panel, transfer equipment, conductors, protection, labeling, and commissioning. We start with the circuits you want to keep alive, the equipment ratings, the existing panel, and the route. Portable generator hookups stay on the generators page. Tesla Powerwall and Enphase whole-home product sales are quoted only when the listed equipment and interconnection path are confirmed for the property. In Herndon, we have seen how historic downtown property electrical updates affects homeowners. That is why we take the time to assess your entire electrical system and recommend solutions that address both immediate needs and long-term reliability. Every home battery & wall packs project we complete in Fairfax County includes a thorough inspection, detailed documentation, and our commitment to your complete satisfaction.
| Typical cost in Herndon | $2,500-$6,000 portable; $6,000-$15,000+ whole-homeFairfax County permit fees apply and are folded into the written estimate. |
|---|---|
| Typical timeline | 4-10 hours |
| Permit authority | Fairfax County Land Development ServicesWe pull the permit and schedule the Fairfax County inspection on your behalf. |
| Applicable code standard | National Electrical Code (NFPA 70), as adopted in VA |
| Most common local condition | Added-circuit demand for home offices in Kingstream and Dranesville Station. |
Permit fees, scope, and existing-condition surprises affect final pricing. Verify current requirements with the Fairfax County Land Development Services and review the NFPA 70 (National Electrical Code).
We list the circuits you want backed up and check running and starting loads against the equipment ratings.
AJLE-supplied EcoFlow, Bluetti, or Anker gear, or a customer-selected listed battery, is confirmed for the panel and location.
The proposal separates equipment, panel work, transfer devices, routing, and permit coordination.
Electrical permit and inspection requirements are confirmed for the property.
The battery, transfer or smart-panel connection, conductors, and labels are installed to the defined scope.
We test the switching sequence, set charging, and walk through normal operation.
We supply and install listed EcoFlow, Bluetti, and Anker SOLIX wall-pack and power-station systems, and we connect other listed customer-selected batteries when the equipment, panel, and manufacturer instructions are compatible. Tesla Powerwall and Enphase product lines are evaluated per project.
$2,500-$6,000 portable; $6,000-$15,000+ whole-home, depending on capacity, whether the unit is portable or hardwired through a smart home panel, and the number of backed-up circuits. Equipment and electrical work are itemized on the written proposal.
Yes. Inlet boxes, manual transfer switches, and listed interlocks remain on the portable generator hookups page. This page is for battery wall packs and hardwired battery integration.
Many listed systems recharge from the grid and can accept solar input when the inverter and interconnection are designed for it. We document that electrical path. Rooftop solar installation is a separate, gated offer.
Hardwired transfer equipment and smart-panel connections typically need an electrical permit. We confirm the path for the address before work is scheduled.
Herndon homes are mostly 1970s-1990s subdivisions plus historic downtown Herndon, so we frequently encounter 150-200A panels with room for EV and HVAC additions. The most common situation we address is added-circuit demand for home offices in Kingstream and Dranesville Station. Permits for this work go through the Fairfax County Land Development Services, and Fairfax County permit fees apply and are folded into the written estimate. That local knowledge means AJ Long Electric arrives prepared for the conditions specific to Herndon rather than treating it like any other Fairfax County job.
Home Battery & Wall Packs costs in Herndon typically range from $2,500-$6,000 portable; $6,000-$15,000+ whole-home depending on scope and complexity. AJ Long Electric provides free written estimates for all home battery & wall packs projects in Fairfax County. Call (571) 444-6886 for an accurate quote specific to your home.
Most home battery & wall packs projects in Fairfax County require an electrical permit from the Fairfax County building department. AJ Long Electric handles all permit applications and scheduling of required inspections as part of our service, ensuring your project meets all Virginia electrical codes.
Home Battery & Wall Packs projects in Herndon typically take 4-10 hours to complete. Timelines can vary based on the scope of work, permit approval speed in Fairfax County, and any unforeseen conditions found in your home's existing electrical system.
AJ Long Electric has served the region since 1996. We are a licensed, insured electrical contractor led by a 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 Herndon address.
Typical Price Range: $2,500-$6,000 portable; $6,000-$15,000+ whole-home
Contact us for a free estimate tailored to your Herndon home.
Ready to discuss home battery & wall packs for your Herndon home? Contact AJ Long Electric today at (571) 444-6886 for a free consultation. We proudly serve all of Fairfax County, including the neighborhoods of Historic Downtown Herndon, McNair Farms, Heritage Crossing, Westfield, Fox Mill. Our team is standing by to answer your questions and schedule a convenient appointment.
We also provide professional home battery & wall packs services in these nearby communities.
Expert Resources
Guides our licensed electricians point home battery & wall packs customers to most often.

A wall pack is silent indoor backup tied to selected circuits. Here is how AJ Long Electric supplies and installs...

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Guides
Expert electrical guides to help you make informed decisions.
Listed EcoFlow, Bluetti, and Anker SOLIX wall packs versus a portable generator hookup. What the electrical scope includes, what it costs, and when a smart home panel is worth it.
Everything Northern Virginia homeowners need to know about backup power: safely connecting a portable generator with a transfer switch or interlock kit, or installing a silent, fuel-free battery power station.
A comprehensive guide to electrical panel upgrades covering signs you need an upgrade, the process, costs, and what to expect.
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