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Professional electrical services for Herndon's tech corridor families. Request a free estimate for your installation, or describe the problem for a diagnostic and repair visit.
From routine repairs to major installations, our licensed electricians provide comprehensive electrical services to Herndon homes and businesses. Quoted electrical installations include a five-year workmanship warranty; manufacturer equipment warranties are separate.
Property-specific electrical panel replacement and service-capacity planning, with load calculations, utility coordination, labeling, and permit-path confirmation.
Electrical hookups for customer-owned or dealer-supplied portable generators and battery equipment, including compatible transfer equipment and inlet connections.
Replace faulty, tripping, or outdated circuit breakers for reliable power distribution.
Property-specific branch-circuit installation for appliances, workshops, offices, and specialty equipment, sized to the connected load and existing panel.
Upgrade your home's electrical service from the utility meter to the main panel.
Listed home battery and wall-pack installation with panel integration, transfer equipment, circuit selection, and permit-path confirmation.
Smart panel and smart-breaker installation for circuit-level monitoring, load management, and battery or EV coordination.
Recessed lighting planned around the room, ceiling access, fixture ratings and compatible dimming. Request a free estimate for a defined installation scope.
Property-specific outdoor and landscape lighting for paths, entries, architecture, patios, and gardens, with weather exposure and control needs evaluated on site.
Chandelier installation planned around fixture weight, mounting support, ceiling height and safe access. Send the model and room photos before arranging the work.
Dimmer and switch upgrades matched to your lights, wiring and control locations. We check compatibility before recommending a replacement.
Automated motion-activated lighting for security, convenience, and energy savings.
Panel-mounted surge protective device installation with equipment compatibility, conductor path, grounding, bonding, and status-indicator review.
Accessible residential electrical-system review with a written, photo-supported record of observed conditions and clearly stated inspection limits.
GFCI outlet installation and replacement with grounding, circuit and location checks. A planned replacement and an unexplained trip need different service requests.
Hardwired, interconnected smoke and CO detectors for maximum life safety.
Bring your home's electrical system up to current NEC code standards.
Home Level 2 EV charger installation with panel-capacity review, circuit planning, equipment connection, testing, and permit coordination for the defined scope.
Integration for smart switches, thermostats, and video doorbells.
Upgrade your outlets with built-in USB-A and USB-C charging ports.
Monitor electrical consumption and control selected loads with compatible lighting, timers, sensors, and smart electrical equipment.
Specialized wiring for kitchen remodels, appliances, and lighting.
Ceiling-fan installation and replacement with support, clearance, wiring and control checks. Tell us whether you are replacing a fan or adding one at a light location.
Bathroom exhaust-fan replacement starts with the existing opening, wiring and duct route. The estimate separates electrical work from ventilation and exterior repairs.
Safe, code-compliant electrical wiring for swimming pools, hot tubs, and spas.
Professional in-wall wiring for home theaters, media rooms, and entertainment systems.
Accessible aluminum branch-circuit evaluation and property-specific corrective work for documented connections or a defined copper-replacement scope.
Accessible knob-and-tube wiring evaluation and phased or defined replacement planning for older homes, with access and finish boundaries documented.
Diagnostic service for power loss, flickering, dead outlets, repeated tripping, heat, noise, and other residential electrical symptoms.
Need an emergency electrician now? Our 24/7 line is answered live at (571) 444-6886 for sparking panels, burning smells, and storm damage across Northern Virginia.
Honest light-commercial electrical for Northern Virginia businesses: offices, retail, restaurants, and tenant fit-outs. Request a commercial estimate.
Solar panels installed by the electricians who already do your panel, battery, and EV charger. From $2.40/W installed, with a master electrician on site.
Neighborhoods We Serve
Send your complete address, work description and any building-access requirements. Our team reviews the request and confirms availability before a visit is scheduled.


Staff confirm scope and availability
View detailed electrical service information for specific neighborhoods in Herndon.
AJ Long Electric proudly serves Herndon and surrounding areas.Call (571) 444-6886 for service in your area.
Local Service Area
Use your address and property details to plan the work. Nearby landmarks help describe the area, but do not establish electrical conditions, permit jurisdiction or installation requirements.
Area landmark
Herndon Town Green
Area landmark
Frying Pan Farm Park
Area landmark
W&OD Trail
Area landmark
Herndon Community Center
Area landmark
Dulles Town Center
Area landmark
Worldgate
Area landmark
ArtSpace Herndon
Area landmark
Herndon Centennial Golf Course
Historic downtown property electrical updates
Panel upgrades for mid-century homes
EV charging for tech-employed commuters
Smart home integration and home automation
Home office circuits for remote workers
Outdoor lighting respecting airport proximity
Basement finishing electrical in existing homes
Generator hookups & battery backup for travel-frequent residents
Confirm the actual property jurisdiction and scope before deciding which permits or inspections apply. New circuits and service changes differ from like-for-like replacements. The authority determines the requirements for your project.
| Project | Planning Step | What It Means |
|---|---|---|
| Panel upgrade (e.g. 100A to 200A) | Confirm permit path | Replacing or upsizing the main electrical panel that distributes power throughout your home. |
| EV charger installation | Confirm permit path | Adding a dedicated 240V circuit for a Level 2 home electric-vehicle charger. |
| New circuits & rewiring | Confirm permit path | Identify the proposed circuit work and any changes to walls or protected assemblies. |
| Like-for-like fixture or device swap | Check exemptions | Confirm whether the exact replacement qualifies for an exemption; protected assemblies or other scope can change the requirement. |
Your written scope should identify permit and inspection coordination. For state trade licensing, see the Virginia DPOR (electrical licensing board). Verify electrical contractor licenses and review Virginia tradesman licensing requirements through the Department of Professional and Occupational Regulation.
About Our Herndon Services
Herndon, Virginia offers the appealing combination of small-town charm and technology-corridor opportunity that attracts families seeking quality of life alongside career advancement. The Town of Herndon maintains its historic downtown character while surrounding neighborhoods provide diverse housing options from starter homes to executive estates. AJ Long Electrical has served Herndon homeowners throughout our history, building lasting relationships with families who appreciate reliable, professional electrical service.
Downtown Herndon contains beautifully preserved historic homes from the late 19th and early 20th centuries, many now serving as professional offices alongside residential properties. These structures require electricians who understand both the code requirements for commercial occupancy and the preservation considerations for historic buildings. We balance modern electrical demands with respect for original architectural details.
Herndon's residential neighborhoods showcase the area's growth patterns across decades. The established neighborhoods near downtown contain classic mid-century homes with the typical electrical characteristics of their era: 100-amp panels, limited circuits, and aging wiring that benefits from systematic updating. Newer developments like McNair Farms, Heritage Crossing, and Westfield offer larger homes with more modern electrical systems that nonetheless benefit from enhancements like EV charging, smart home integration, and whole-house surge protection.
The proximity of Dulles Airport influences Herndon's residential character in several ways. Many residents travel frequently for business and appreciate the security of monitored smart home systems and the reliability of professionally installed battery backup power stations and portable generator hookups. The airport's flight paths also create considerations for outdoor lighting design that minimizes sky glow while still providing needed illumination.
Herndon's technology employers attract residents who embrace innovation in their homes as enthusiastically as in their work. These homeowners request cutting-edge electrical systems including comprehensive home automation, whole-house audio distribution, dedicated home theater circuits, and EV charging installations. We stay current with emerging technologies to serve these forward-thinking clients effectively.
The W&OD Trail passes through Herndon, and trail-adjacent properties have become increasingly desirable for active families. These homes often benefit from outdoor electrical upgrades including patio and deck lighting, garage circuits for e-bike charging, and landscape lighting that welcomes visitors while providing security when the family is out enjoying the trail.
Herndon families choose AJ Long Electrical because we combine small-town service values with big-company capabilities. Our technicians arrive when scheduled, explain their work clearly, and treat your home with respect. We stand behind our work completely and remain available for any questions or concerns after the project is complete.
When your Herndon home needs electrical attention, from a simple repair to a comprehensive upgrade, call the contractor your neighbors trust.
Fully licensed in Virginia with comprehensive liability insurance for your protection.
1,463 Google reviews across our four business profiles.
Call to confirm the current response window for Herndon; urgent safety concerns are prioritized during business hours.
Frequently Asked Questions
Get answers to the most frequently asked questions from Herndon homeowners about our electrical services.
AJ Long Electric serves Herndon. Our family-owned company has been in business since 1996. Send the property address and work description so our team can review scope, access and availability.
Permit requirements depend on the property jurisdiction, building and electrical scope. The written proposal should identify required permit and inspection coordination. The local authority controls review, corrections and final approval; a mailing city alone may not identify the correct office.
We accept requests for Herndon and nearby areas, including Historic Downtown Herndon, McNair Farms, Heritage Crossing. Provide your complete address and access details; staff confirm the next step and available visit window after reviewing the request.
For urgent electrical hazards in Herndon, call (571) 444-6886. During business hours, we prioritize safety-related calls and confirm the available response window with you. If you see fire or an immediate threat to life, call 911 first.
Describe the desired change or symptom, provide the equipment model if known, and include photos taken safely with covers closed. Note access restrictions, prior renovations and other loads you plan to add. A home’s age or neighborhood alone does not establish its wiring condition or need for an upgrade.
Estimates are free, with no fee for the visit or the written price. For a panel upgrade, EV charger installation, whole-house rewiring, or another project, request an appointment so we can document the property-specific scope.
AJ Long Electric is a licensed and insured electrical contractor for work in Virginia. John Long is the company founder and Master Electrician, and the company maintains the licenses required for its work. You can verify our credentials before authorizing your Herndon project.
In addition to Herndon, AJ Long Electric provides professional electrical services to these nearby communities in Virginia and the greater DMV region.
Proudly serving Herndon and surrounding areas including Reston, Great Falls, Ashburn, Sterling, Vienna. Our electricians are licensed to work throughout Northern Virginia, Maryland, and Washington DC.
For fire or an immediate threat to life, call 911 first. Keep clear of damaged equipment and downed wires. For an urgent electrical concern, call us so staff can review the issue and confirm the available response window.
● Average response time: < 2 hours for emergencies
Expert Tips
Helpful guides and advice from our licensed electricians who serve the Herndon area.

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AJ Long Electric is your trusted licensed electrician in Herndon, Virginia. We proudly serve neighborhoods including Historic Downtown Herndon, McNair Farms, Heritage Crossing, Westfield, Fox Mill, and areas near Herndon Town Green, Frying Pan Farm Park, W&OD Trail. Serving ZIP codes: 20170, 20171. Call (571) 444-6886 to request an estimate for electrical services in Fairfax County.