Local electrical guides for Northern Virginia homeowners covering permits, county requirements, and city-specific work.
AJ Long Electric serves Fairfax, Arlington, Alexandria, Loudoun, Prince William, and the wider DMV, and each jurisdiction has its own permit office and inspection process. These guides cover city-specific requirements so your project clears local code the first time.
Looking for the bigger picture? Explore our Northern Virginia service areas, or read the authoritative reference from Fairfax County electrical permits & inspections.
Yes. Most electrical work beyond simple fixture swaps — new circuits, panel upgrades, EV chargers — requires a Fairfax County electrical permit and inspection. A licensed electrician pulls it as part of the job.
We serve Fairfax, Arlington, Alexandria, Loudoun, Prince William, and surrounding Northern Virginia and DMV communities. Check our service-area pages or call to confirm coverage for your address.
30 articles in this category

Your comprehensive guide to electrical services in Fairfax, Virginia. From panel upgrades to EV charger installation, learn what Fairfax homeowners need to know.

Arlington homeowners face unique electrical challenges in older rowhouses and condos. Learn what to look for in an Arlington electrician and common services needed.

Alexandria has specific electrical codes, especially in historic Old Town. Learn about permit requirements, historic district considerations, and code compliance.

Navigating Loudoun County electrical permits for your home project. Learn what requires permits, the application process, and inspection requirements.

McLean homes often feature sophisticated electrical systems. Learn about high-end electrical upgrades, smart home integration, and luxury electrical services.

Vienna homeowners need reliable electrical contractors for everything from repairs to renovations. Learn what makes a quality Vienna electrician.

Falls Church offers unique electrical challenges with its city boundaries and mixed housing stock. Learn about electrical services tailored for Falls Church residents.

Many Reston homes need panel upgrades to support EVs, home offices, and modern appliances. Learn about upgrading your Reston home electrical panel.

Herndon residents are embracing electric vehicles. Learn about EV charger installation options for Herndon homes, including permits and electrical requirements.

Bethesda homes range from historic Chevy Chase estates to downtown high-rises. Learn about electrical services tailored to Bethesda residents.

Silver Spring offers diverse neighborhoods requiring varied electrical expertise. Find trusted electricians for your Silver Spring home or business.

Rockville homeowners need reliable electrical contractors for projects large and small. Learn about finding quality electrical service in Rockville.

DC electrical permits have specific requirements different from Virginia and Maryland. Learn about the DC permit process for your electrical project.

Georgetown historic homes present unique electrical challenges. Learn about updating electrical systems while preserving historic character.

Capitol Hill rowhouses need electrical updates that respect their historic character. Learn about rewiring options for Capitol Hill homes.

Northern Virginia storms cause frequent power outages. Learn about battery power stations, portable-generator hookups, and storm-proofing your electrical system.

Montgomery County has specific electrical code requirements. Learn what homeowners need to know about electrical codes and permits in MoCo.

Prince William County homeowners need permits for most electrical work. Learn about the PWC permit process and what projects require permits.

Tysons Corner businesses need reliable commercial electrical services. Learn about commercial electrical solutions for Tysons offices and retail.

Springfield homeowners trust us for quality electrical services. From panel upgrades to smart home installation, we serve the Springfield community.

Ashburn homes need modern electrical systems. Learn about electrical upgrades for Ashburn homes including EV charging and smart home integration.

Leesburg offers unique electrical challenges from historic downtown to new developments. Find quality electrical services in Leesburg, Virginia.

Centreville homeowners and businesses need reliable electrical services. Learn about electrical solutions for the Centreville community.

Manassas residents need quality electrical contractors for home projects. Learn about electrical services in Manassas City and Prince William County.

Chantilly homes and businesses need reliable electrical services. Learn about electrical solutions for the Chantilly area.

Great Falls estates require sophisticated electrical systems. Learn about luxury electrical services for Great Falls properties.

Burke homes often need electrical upgrades to meet modern demands. Learn about common electrical improvements for Burke properties.

Annandale offers diverse electrical needs from residential to commercial. Find reliable electrical services in Annandale, Virginia.

Woodbridge homeowners need reliable electrical contractors. Learn about electrical services in Woodbridge and surrounding Prince William County.

Potomac estates require sophisticated electrical systems. Learn about premium electrical services for Potomac, Maryland homes.
Find more helpful articles in our other categories.
EV charging covers the Level 2 home chargers and circuits that recharge an electric vehicle from your own garage or driveway. These guides walk Northern Virginia drivers through charger selection, the dedicated 240-volt circuit and panel capacity a home charger needs, permitting, and the install costs to expect. A typical Level 2 setup adds roughly 25 to 40 miles of range per hour of charging.
A panel upgrade replaces an undersized or outdated electrical panel with a modern service that safely powers today's larger loads. These homeowner guides explain when an upgrade is required, how to move from 100-amp to 200-amp service, the warning signs of failing or recalled panels, and what permitting and inspection involve. Most Northern Virginia 200-amp upgrades land between $2,500 and $6,500 depending on amperage and panel location.
Electrical home safety is the set of practices and devices that prevent shock, fire, and arc-fault hazards in a house. These guides cover GFCI and AFCI protection, smoke and carbon-monoxide detectors, overloaded circuits, aluminum wiring, and the inspections that catch problems early. Faulty wiring contributes to an estimated 45,000 home fires in the U.S. each year, which is why proactive checks matter.
Smart home technology connects lighting, outlets, thermostats, and security to app or voice control through reliable, code-compliant wiring. These articles explain smart switches and dimmers, whole-home automation hubs, structured low-voltage cabling, and the electrical groundwork a dependable smart home needs. Done right, a connected home can trim lighting and HVAC energy use by 10 to 15 percent.
Commercial electrical work covers the power systems, lighting, and code compliance that keep offices, retail spaces, restaurants, and multi-unit buildings running. These articles address three-phase service, panel and subpanel design, dedicated circuits for commercial equipment, emergency and exit lighting, and the permitting and NEC inspections that commercial properties must pass. Most commercial projects in Northern Virginia must meet the National Electrical Code on a roughly three-year update cycle, so staying current protects both safety and your certificate of occupancy.
Electrical energy efficiency is the practice of cutting wasted power through better lighting, smarter controls, and well-sized circuits. These guides cover LED retrofits, dimmers and occupancy sensors, energy monitoring, and load management that lowers your bill without sacrificing comfort. Switching from incandescent to LED lighting alone can reduce that lighting load by up to 75 percent.
Home backup power comes in two practical forms: a portable generator connected safely through a transfer switch, interlock kit, or inlet box, and a battery power station that stores electricity for silent, fuel-free, indoor-safe backup. These guides explain backfeed safety and carbon-monoxide precautions for portable generators, how battery stations from EcoFlow, Bluetti, and Anker SOLIX are sized in kWh and watts, and the electrical permitting an install requires. A transfer switch or interlock is required to connect a generator to your home safely and to code.
Lighting design pairs the right fixtures, layers, and controls to make a space both functional and inviting. These articles cover interior and exterior lighting, recessed and accent fixtures, landscape and security lighting, dimming systems, and energy-efficient LED upgrades. A well-planned layout typically blends three layers of light, ambient, task, and accent, to balance comfort and utility.
Seasonal electrical care is the year-round maintenance that keeps a home's wiring, outlets, and outdoor circuits safe through changing weather. These guides cover holiday lighting loads, storm and outage preparation, surge protection, and warm- and cold-weather inspections tuned to the Mid-Atlantic climate. A few targeted seasonal checks each year head off the outages and hazards that peak during DMV summer storms and winter cold snaps.
Electrical cost and pricing guides explain what common projects actually cost and the factors that move the final number. These articles break down pricing for panel upgrades, EV chargers, rewiring, lighting, and service calls, plus how labor, materials, permits, and home age affect a quote. As a benchmark, licensed electrical labor in the Northern Virginia and DMV market typically runs between $90 and $150 per hour.
Comparison guides weigh competing electrical products and approaches side by side so you can choose with confidence. These articles contrast options like 100- versus 200-amp service, hardwired versus plug-in EV chargers, portable generators versus battery power stations, and LED versus traditional lighting, with the trade-offs in cost, safety, and performance laid out plainly. Each comparison names the scenario where one option clearly wins so the decision is straightforward.
This FAQ collection gives direct, in-depth answers to the electrical questions Northern Virginia homeowners ask most. The articles explain code requirements, safety concerns, project timelines, permitting, and when to call a licensed electrician, written so a homeowner can act on the answer. Every answer reflects current National Electrical Code guidance and real field experience from licensed DMV electricians.
Ready to move from reading to results? Our licensed Northern Virginia electricians handle the work covered in these guides — permitted, inspected, and warrantied.
Our licensed electricians are ready to help with any electrical project in Northern Virginia.