
Electrical Services in Fairfax VA: Complete Homeowner Guide
Your comprehensive guide to electrical services in Fairfax, Virginia. From panel upgrades to EV charger installation,...

Electrical service for Kensington's historic Antique Row, pre-war housing, and small-town Montgomery County charm. AJ Long Electric provides safe, reliable, and code-compliant electrical services throughout Montgomery County. From panel upgrades to EV charger installations, trust the electricians Kensington homeowners have relied on for over 30 years.
From routine repairs to major installations, our licensed electricians provide comprehensive electrical services to Kensington homes and businesses. Every service is backed by our satisfaction guarantee.
Upgrade your home's electrical capacity with safe, modern panel installations.
Never lose power again with reliable standby generator solutions.
Replace faulty, tripping, or outdated circuit breakers for reliable power distribution.
Install dedicated circuits for high-draw appliances, workshops, and home offices.
Upgrade your home's electrical service from the utility meter to the main panel.
Transform your home's ambiance with energy-efficient LED recessed lighting.
Landscape, security, and patio lighting solutions.
Expert installation and mounting for chandeliers of all sizes and styles.
Upgrade to smooth, flicker-free dimmer switches for LED and incandescent lighting.
Automated motion-activated lighting for security, convenience, and energy savings.
Whole-home protection against damaging power spikes.
Detailed safety audits for home buyers and regular maintenance.
Protect your family from electrical shock with code-required GFCI outlets.
Hardwired, interconnected smoke and CO detectors for maximum life safety.
Bring your home's electrical system up to current NEC code standards.
Certified installation for Tesla, ChargePoint, and all major EV charger brands.
Integration for smart switches, thermostats, and video doorbells.
Upgrade your outlets with built-in USB-A and USB-C charging ports.
Reduce energy consumption and utility bills with smart electrical upgrades.
Specialized wiring for kitchen remodels, appliances, and lighting.
Professional installation for ceiling and exhaust fans.
Quiet, powerful exhaust fans to eliminate moisture, mold, and odors from bathrooms.
Safe, code-compliant electrical wiring for swimming pools, hot tubs, and spas.
Professional in-wall wiring for home theaters, media rooms, and entertainment systems.
Eliminate the fire hazard of aluminum branch circuit wiring with professional remediation.
Replace outdated knob-and-tube wiring to eliminate fire hazards and meet modern standards.
Expert diagnosis and repair for flickering lights, dead outlets, and more. Diagnostic visit fee waived if you move forward with the repair.
24/7 emergency electrical repair service for urgent and dangerous situations.
Honest light-commercial electrical for Northern Virginia businesses — offices, retail, restaurants, and tenant fit-outs. Request a commercial estimate.
Our service trucks are dispatched daily throughout Kensington and Montgomery County. Whether you live near Howard Avenue Antique Row or in Kensington Heights, our licensed electricians provide fast, professional service to your neighborhood.


Service trucks active in Kensington
View detailed electrical service information for specific neighborhoods in Kensington.
AJ Long Electric proudly serves Kensington and surrounding areas.Call (703) 997-0026 for service in your area.
Our electricians serve customers throughout Kensington, from residential neighborhoods to commercial districts. We are familiar with local landmarks, traffic patterns, and the unique electrical infrastructure of Montgomery County properties.
We serve customers near
Howard Avenue Antique Row
We serve customers near
Washington DC Temple
We serve customers near
Kensington MARC Station
We serve customers near
Rock Creek Regional Park (adjacent)
We serve customers near
Kensington Library
We serve customers near
Kensington Park
Full and partial rewires in 1880s-1930s historic homes
Knob-and-tube wiring replacement and abandonment in attics/basements
60-amp fuse panel upgrades to modern 200-amp service
Ungrounded two-wire circuit modernization
Historic-district preservation review coordination
Antique-shop tenant electrical along Howard Avenue
100-amp to 200-amp upgrades in mid-century homes around the core
EV charger installations on smaller-lot driveways
Kensington is a small incorporated town in Montgomery County, with about 2,200 residents in roughly half a square mile. Though tiny by area, Kensington is a distinctive community: home to the Howard Avenue Antique Row (one of the largest concentrations of antique dealers on the East Coast), the original 1880s railroad-suburb housing along Knowles and Connecticut Avenues, and the Washington DC Temple of the Church of Jesus Christ of Latter-day Saints just outside the town limits.
Kensington's housing stock is exceptionally old by DMV standards. The original B&O Railroad commuter-suburb housing dates to the 1880s-1900s and includes Queen Anne Victorians, Folk Victorians, Princess Anne cottages, and original frame farmhouses. Slightly newer Craftsman bungalows from the 1910s-20s and Tudor and Colonial Revival homes from the 1920s-30s fill out the historic core. Mid-century brick capes and ranchers extend into the 1950s-60s additions to the town.
Electrical work in Kensington is heavy on historic-home rewiring. Most pre-1940 homes still have remnants of original knob-and-tube wiring (often partially abandoned but sometimes still energized in attic and basement sections), original 60-amp fuse panels, ungrounded two-wire circuits, and a long history of incremental updates that left layered wiring runs hard to trace. Full or partial rewires are common, and we work carefully through the Town of Kensington's historic district review process when exterior work or visible interior alterations affect period appearance.
Newer mid-century homes around the historic core present standard panel-upgrade work — 100-amp service to 200-amp, kitchen rewire work for renovation projects, dedicated circuits for additions, and EV chargers. The Howard Avenue Antique Row commercial properties — most converted from original residential or early-20th-century storefronts — require their own careful electrical work: code-compliant lighting upgrades, dedicated circuits for restoration equipment in antique-repair shops, and rooftop HVAC service for the small commercial buildings.
Kensington residents and business owners choose AJ Long Electric because we treat historic-property electrical work as a craft, we pull all required permits with Town of Kensington and Montgomery County, and we back every job with a workmanship warranty.
Fully licensed in Maryland with comprehensive liability insurance for your protection.
Over 1,400 five-star reviews from satisfied customers throughout Kensington and Montgomery County.
Fast response times with same-day service available for Kensington residents.
Get answers to the most frequently asked questions from Kensington homeowners about our electrical services.
Yes! AJ Long Electric proudly serves Kensington and the surrounding Montgomery County area. We have been providing professional electrical services to Kensington residents and businesses for over 30 years. Our licensed electricians are familiar with local building codes and permitting requirements specific to Montgomery County.
Electrical work in Montgomery County typically requires permits for panel upgrades, new circuit installations, EV charger installations, and major renovations. AJ Long Electric handles all permit applications and inspections on your behalf, ensuring your project meets all Maryland electrical codes and local requirements.
Absolutely! We serve all neighborhoods throughout Kensington, including Kensington Heights, Kensington View, Old Town Kensington, Rock Creek Hills, Parkwood, Saul Centers, and surrounding areas. Our service trucks are regularly dispatched to Kensington for both scheduled appointments and emergency calls.
For electrical emergencies in Kensington, we prioritize rapid response. During business hours, we typically dispatch a technician within 2-4 hours. We also offer emergency services for urgent situations like power outages, electrical fires, or safety hazards. Call (703) 997-0026 for immediate assistance.
Full and partial rewires in 1880s-1930s historic homes. Knob-and-tube wiring replacement and abandonment in attics/basements. 60-amp fuse panel upgrades to modern 200-amp service. These are common issues we address for Kensington homeowners. Our electricians are experienced with the specific electrical infrastructure found in Montgomery County properties.
Yes, we provide free estimates for most electrical projects in Kensington. Whether you need a panel upgrade, EV charger installation, or whole-house rewiring, we will visit your property, assess your needs, and provide a detailed written estimate at no charge. Call (703) 997-0026 to schedule your free consultation.
All AJ Long Electric technicians are fully licensed, bonded, and insured for electrical work in Maryland. We maintain all required state and local licenses, carry comprehensive liability insurance, and our work is backed by our satisfaction guarantee. You can trust that your Kensington electrical project is in qualified hands.
In addition to Kensington, AJ Long Electric provides professional electrical services to these nearby communities in Maryland and the greater DMV region.
Proudly serving Kensington and surrounding areas including Bethesda, Rockville, Silver Spring, Wheaton. Our electricians are licensed to work throughout Northern Virginia, Maryland, and Washington DC.
Power outage, smoking panels, or sparking outlets? Do not wait. Our licensed electricians are on standby 24/7/365 to protect your home and family.
● Average response time: < 2 hours for emergencies
Helpful guides and advice from our licensed electricians who serve the Kensington area.

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AJ Long Electric is your trusted licensed electrician in Kensington, Maryland. We proudly serve neighborhoods including Kensington Heights, Kensington View, Old Town Kensington, Rock Creek Hills, Parkwood, and areas near Howard Avenue Antique Row, Washington DC Temple, Kensington MARC Station. Serving ZIP codes: 20891, 20895. Call (703) 997-0026 for a free estimate on all electrical services in Montgomery County.