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Troubleshooting & Repairs
Premium Electrical Service

Troubleshooting & Repairs in Northern Virginia | Expert Installation

Expert diagnosis and repair for flickering lights, dead outlets, and more.

40+ Years
Licensed & Insured
5-Year Warranty
Same-Day Service
Upfront Pricing
1,200+ Reviews

Why is this important?

AJ Long Team Working

Electrical issues can be frustrating and dangerous, but our licensed electricians bring same-day response and advanced diagnostic equipment to quickly identify the root cause of any problem. We use professional-grade Fluke meters, thermal imaging cameras, and circuit analyzers to pinpoint faults that less experienced electricians might miss, achieving first-visit resolution on the vast majority of service calls. Our team is experienced with all wiring types found in Northern Virginia homes, including aluminum wiring common in 1960s-70s construction, knob-and-tube wiring in historic properties throughout Old Town Alexandria and Falls Church, and modern Romex installations in newer communities across Ashburn and South Riding. From dead outlets and flickering lights to mysterious wiring faults and repeatedly tripping breakers, we provide safe, lasting repairs backed by upfront pricing with no hidden fees. Before any work begins, you receive a clear explanation of the problem and a written quote so there are no surprises. We also offer emergency electrical service for urgent safety issues like burning smells, sparking outlets, or complete power loss -- because some problems simply cannot wait until morning.

Expert Diagnosis

We find the real problem, not just the symptom.

Safety First

Prevent electrical fires by fixing faulty wiring correctly.

Upfront Pricing

Know the cost of repairs before we start the work.

Same-Day Service

We prioritize electrical problems and offer same-day response for urgent safety issues across Northern Virginia.

All Wiring Types

Experienced with aluminum, knob-and-tube, and modern Romex wiring found in homes of every era.

Lasting Results

We fix the root cause, not just the symptom, so the same issue does not come back.

Signs You Need This

Outlets are not working or feel loose
Lights flicker without a dimmer switch
You smell burning plastic near outlets
Breakers trip without an obvious cause
Switches or outlets feel warm to the touch
You hear buzzing or crackling sounds from walls
Light bulbs burn out frequently in the same fixture
You experience mild shocks when touching appliances

Need Help Now?

Our licensed electricians are ready to assist you in Northern Virginia.

Service Areas

Serving Fairfax, Arlington, Alexandria, Loudoun, and Prince William Counties.

Local Expertise

Northern Virginia Service Context

Serving the DMV Region

Fairfax, Arlington, Alexandria, Loudoun & Prince William Counties

Northern Virginia's diverse housing stock creates a uniquely challenging environment for electrical troubleshooting and repair. The region spans homes built from the 1940s through the present, with each era bringing its own electrical challenges. Mid-century colonials in Fairfax County often contain original cloth-insulated wiring and obsolete panel brands, while 1960s-70s split-levels in Burke and Springfield frequently have aluminum branch wiring that requires specialized remediation. The DMV area's summer heat drives relentless air conditioning loads that stress aging connections and reveal weak points in wiring systems. Dominion Energy's grid experiences periodic outages during severe thunderstorms, derechos, and winter ice storms, each causing power surges that can damage equipment and expose latent wiring faults. Northern Virginia's clay-heavy soil accelerates corrosion of grounding systems, reducing the effectiveness of the safety grounding that protects families from shock. The region's rapid adoption of electric vehicles, heat pumps, and smart home technology adds new electrical loads to systems that were never designed for them, making circuit overloads and breaker trips increasingly common. Local jurisdictions maintain rigorous inspection programs ensuring all repair work meets Virginia's adopted NEC standards.

Licensed in Virginia
Master Electrician
Same-Day Available
Local Since 1985
Real Projects

Troubleshooting & Repairs Case Studies

See how we have helped homeowners across Northern Virginia with their troubleshooting & repairs needs.

Persistent Kitchen Circuit Failures in 1980s Colonial

colonial
Colonial home in Vienna, Fairfax County

Challenge

The homeowner experienced repeated breaker trips in the kitchen every time the microwave and toaster oven ran simultaneously. A previous electrician had simply replaced the breaker twice without investigating further. The family had resorted to unplugging appliances between uses, which was impractical and frustrating.

Solution

AJ Long Electric performed a full circuit analysis using thermal imaging and load testing. We discovered the kitchen was fed by a single 15-amp circuit that also served three dining room outlets. We split the circuit, ran a new dedicated 20-amp line for the countertop outlets, and installed AFCI/GFCI combination breakers on both kitchen circuits.

Result

The kitchen now handles all appliances simultaneously without tripping. The homeowner can finally use the microwave, toaster oven, and coffee maker at the same time during busy mornings.

Intermittent Power Loss in Townhome Community

townhome
Three-story townhome in Reston, Loudoun County

Challenge

An entire floor of this 2001 townhome would randomly lose power, sometimes for minutes, sometimes for hours. The homeowner had called two other electricians who could not replicate the problem. The intermittent nature made diagnosis extremely difficult, and the family was worried about food spoiling in the affected refrigerator.

Solution

We installed a data-logging power quality monitor on the affected circuits for 48 hours, which captured the fault events. The logs revealed a loose neutral connection in a junction box hidden above the second-floor hallway ceiling. The connection was arcing intermittently under load, causing voltage fluctuations that tripped the AFCI breaker. We opened the ceiling, repaired the junction, and replaced the damaged wire section.

Result

The intermittent outages stopped completely after the junction repair. Our data-driven diagnostic approach found in hours what two previous electricians missed over multiple visits.

Aluminum Wiring Remediation After Outlet Fire

split-level
Split-level home in Annandale, Prince William County

Challenge

The homeowner noticed a burning smell and discoloration behind a bedroom outlet. When we removed the cover plate, we found scorched aluminum wiring with a failed connection point. The 1972 split-level had original aluminum branch wiring throughout, and several other connections showed signs of overheating when inspected with thermal imaging.

Solution

AJ Long Electric performed a whole-home aluminum wiring remediation using AlumiConn connectors at every outlet, switch, and junction box -- 87 connection points in total. We replaced the damaged outlet and wire section, installed new tamper-resistant receptacles throughout, and added AFCI breakers for all bedroom and living area circuits.

Result

All 87 aluminum-to-copper connection points are now properly terminated with approved connectors. The homeowner's insurance company confirmed continued coverage, and the home is dramatically safer.

Whole-Home Electrical Diagnosis for Unexplained Shocks

estate
Estate property in Clifton, Arlington County

Challenge

Residents of this 5,200 sq ft estate reported mild tingling sensations when touching faucets and metal appliances. They had consulted their plumber and HVAC contractor with no resolution. The shocks were not painful but were alarming, especially with young children in the home.

Solution

Our diagnostic workup revealed a failed neutral-to-ground bond at the main panel combined with a deteriorated grounding electrode system. The original ground rod had corroded significantly in the clay soil. We installed two new 8-foot copper ground rods, replaced the grounding electrode conductor, re-established the main bonding jumper, and verified proper neutral-ground bonding throughout the system.

Result

All stray voltage readings dropped to safe levels immediately after the grounding system repair. The family no longer experiences any tingling or shocks, and the home's electrical system now has a solid safety foundation.

Permits & Compliance

Permit & Jurisdiction Guide

Permit requirements for troubleshooting & repairs vary by county. We handle the entire permitting process for you.

Fairfax County

Permit Required

Permit Process

Fairfax County requires electrical permits for repairs involving new circuits, circuit modifications, or wire replacements. Simple device replacements (outlets, switches, breakers) typically do not require permits. Applications are submitted through the Land Development Services online portal with typical approval in 2-4 business days.

Inspection Notes

Fairfax inspectors verify that repaired circuits meet current NEC standards, including proper AFCI/GFCI protection, correct wire gauges, and approved junction box usage.

Special Requirements

Repairs involving aluminum wiring remediation require a permit and inspection
Any new circuit added during repair work requires a separate permit

Loudoun County

Permit Required

Permit Process

Loudoun County requires permits for electrical work beyond simple device replacements. Repair permits are processed through the Department of Building and Development, with expedited processing available for safety-related repairs. Typical turnaround is 2-3 business days.

Inspection Notes

Loudoun inspectors pay particular attention to proper grounding and bonding on repaired circuits and verify that all junction boxes are accessible with proper covers.

Special Requirements

All junction boxes must remain accessible after repair -- concealed boxes must be relocated
Permit card must be visible during inspection

Prince William County

Permit Required

Permit Process

Prince William County issues electrical repair permits through the Development Services department. For safety-critical repairs, expedited same-day permits may be available by contacting the department directly. Standard processing is 1-3 business days for residential repair work.

Inspection Notes

Prince William inspectors focus on wire sizing, proper connector use, and NEC-compliant installation methods. They verify that repairs address the root cause rather than just symptoms.

Special Requirements

Licensed contractor required for all permitted electrical work
Whole-home aluminum wiring remediation requires a comprehensive permit

Arlington County

Permit Required

Permit Process

Arlington County processes repair permits quickly through the Inspections Services Division online system, often within 1-2 business days. Arlington's compact geography enables fast inspection scheduling, frequently same-day or next-day for completed repairs.

Inspection Notes

Arlington inspectors are thorough and frequently check for proper wire termination methods, correct torque specifications, and compliance with the latest NEC edition adopted by Virginia.

Special Requirements

Arlington enforces 42-inch clearance in front of electrical panels discovered during repair work
Permits expire after 180 days if work is not completed
Pricing Options

Troubleshooting & Repairs Pricing Tiers

Transparent pricing with options to fit your budget and project scope. Every tier includes our quality guarantee.

Standard

$150-$350

Diagnostic visit and straightforward repairs for common electrical issues like dead outlets, tripping breakers, and flickering lights.

  • Professional diagnostic visit with Fluke meters
  • Single-issue troubleshooting and repair
  • Outlet or switch replacement
  • Circuit breaker replacement (standard)
  • 90-day parts and labor warranty
Most Popular

Premium

$350-$750

Advanced diagnosis and multi-circuit repairs for complex issues requiring thermal imaging, circuit tracing, or multiple repair points.

  • Advanced diagnostic with thermal imaging
  • Multi-circuit troubleshooting
  • Wire repair or junction box corrections
  • GFCI/AFCI breaker upgrades included
  • Whole-circuit load testing
  • 90-day parts and labor warranty

Complete

$750-$2,000

Comprehensive electrical system diagnosis and repair for whole-home issues including aluminum wiring remediation, grounding corrections, and multi-room rewiring.

  • Whole-home electrical system assessment
  • Thermal imaging scan of all accessible panels and circuits
  • Aluminum wiring remediation (AlumiConn connectors)
  • Grounding system testing and repair
  • Multiple circuit repairs and upgrades
  • Detailed written report of findings and repairs
  • 90-day parts and labor warranty

Prices may vary based on the specific requirements of your project, the condition of existing electrical systems, and your home's unique characteristics. Contact us for a free, no-obligation estimate tailored to your needs.

By Home Type

Troubleshooting & Repairs by Housing Type

Different home styles have unique electrical characteristics. Select your housing type to see specific considerations.

Colonial Homes

Common Issues

Aging wiring connections loosen over decades, causing intermittent faults and hot spots
Original cloth-insulated wiring from the 1950s-60s becomes brittle and prone to short circuits
Basement panels in older colonials often have moisture exposure leading to corrosion

Special Considerations

Colonial homes in Vienna, McLean, and Falls Church frequently have wiring from the original construction that has never been updated. Multi-story circuit runs pass through wall cavities that are difficult to access without opening walls. Troubleshooting often requires knowledge of vintage wiring methods and materials common in mid-century Northern Virginia construction.

How It Works

Our Troubleshooting & Repairs Process

We follow a proven process to ensure your project is completed safely, on time, and to your complete satisfaction.

1

Problem Description

You describe the electrical issue you're experiencing, when it started, and any patterns you've noticed.

2

Same-Day or Next-Day Scheduling

We prioritize electrical problems and schedule a diagnostic visit quickly, often same-day for urgent issues.

3

Professional Diagnosis

Our electrician uses professional meters and testing equipment to isolate the exact cause of your problem.

4

Explanation & Quote

We explain what we found, show you the issue when possible, and provide a clear repair quote before proceeding.

5

Expert Repair

Upon your approval, we complete the repair using quality materials and proper techniques.

6

Testing & Verification

We test the repaired circuit thoroughly to ensure the problem is fully resolved.

7

Prevention Tips

We share recommendations to prevent similar issues and identify any other concerns we noticed during diagnosis.

FAQs

Frequently Asked Questions

Get answers to common questions about our troubleshooting & repairs services.

Why do my lights flicker when I turn on an appliance?

Occasional minor flickering when large appliances start is normal due to initial power draw. However, persistent or severe flickering can indicate loose connections, an overloaded circuit, or problems at the panel. If flickering is frequent or affects multiple rooms, you should have it inspected to prevent potential fire hazards.

Why does my outlet spark when I plug something in?

A small blue spark is normal when connecting to a live circuit. However, large sparks, yellow or white sparks, sparks with burning smell, or sparks that occur after the plug is fully inserted indicate a serious problem. Stop using that outlet and call us for immediate inspection.

What causes outlets to stop working?

Common causes include tripped GFCI outlets elsewhere on the circuit, tripped breakers, loose wire connections, or a failed outlet. Sometimes outlets downstream from a tripped GFCI also lose power. We trace the circuit to find and fix the exact cause.

Why does my breaker keep tripping?

Breakers trip due to circuit overloads (too many devices), short circuits (wiring faults), or ground faults. If a breaker trips repeatedly, the circuit may be overloaded and need to be split, or there may be a hidden wiring problem. Never replace a breaker with a higher amperage unit without professional assessment.

Is a buzzing sound from outlets or switches dangerous?

Buzzing can indicate loose connections, a failing switch or outlet, or improper wiring. While some dimmers buzz slightly with certain LED bulbs, persistent buzzing from outlets or switches is a warning sign of arcing, which can cause fires. Have it inspected promptly.

What should I do if I smell burning from an outlet?

A burning smell is an emergency warning sign. Turn off the circuit at the breaker immediately and do not use that outlet. Do not attempt to investigate behind the outlet plate yourself. Call a licensed electrician for emergency inspection, as this can indicate active arcing or melting wires.

How much does electrical troubleshooting cost?

We charge a diagnostic fee to identify the problem, which is applied toward the repair if you proceed. Repair costs depend on the issue found, such as replacing an outlet, repairing a connection, or fixing wiring. We provide upfront pricing before starting any repair work.

Why do my outlets feel warm to the touch?

Warm outlets can indicate loose wiring connections, an overloaded circuit, or a failing outlet. While slight warmth from a device charger may be normal, an outlet that feels hot without anything plugged in is a fire hazard. Turn off the circuit and call us for inspection before using it again.

Can aluminum wiring be made safe?

Yes, aluminum wiring does not necessarily require full replacement. We install COPALUM or AlumiConn connectors that create safe copper-to-aluminum connections at every outlet, switch, and junction box. This remediation brings aluminum wiring up to modern safety standards at a fraction of the cost of a complete rewire.

What is the difference between a ground fault and an arc fault?

A ground fault occurs when electricity escapes its intended path and flows through water or a person, risking electrocution. An arc fault is an unintended electrical discharge through damaged or deteriorated wiring, which can ignite nearby materials. GFCI devices protect against ground faults while AFCI breakers detect arc faults to prevent fires.

When is a full home rewire necessary?

Full rewiring is typically needed when knob-and-tube wiring is present, when wiring insulation is severely deteriorated, or when the home has experienced significant rodent or water damage to wiring. We always explore targeted repairs first but recommend rewiring when the entire system poses a safety risk that partial repairs cannot adequately address.

Do you offer emergency electrical service?

Yes, we provide emergency electrical service for urgent situations including burning smells from outlets or panels, sparking wires, complete power loss, and any situation where safety is at immediate risk. Call us and we will prioritize your service call to address the hazard as quickly as possible.

Pricing

What Affects the Cost?

Every home is different. Here are the factors that influence pricing for troubleshooting & repairs services.

Complexity of the electrical issue
Time required for diagnosis
Accessibility of the problem area
Parts and materials needed for repair
Whether the issue is in walls or accessible locations
Age of the electrical system
Whether emergency or after-hours service is needed

Get Your Free Estimate

Contact us for a no-obligation quote tailored to your specific needs. We provide upfront, transparent pricing with no hidden fees.

Typical Timeline

1-3 hours (most repairs)

Typical Price Range

$150-$500 (diagnostic + repair)

Warranty & Guarantee

All repairs include a 90-day warranty covering both parts and labor. If the same issue recurs within the warranty period, we return at no charge to make it right. Our satisfaction guarantee means you can trust that every repair is done correctly the first time.

Brands & Certifications

Fluke Diagnostic EquipmentLicensed Virginia Master ElectricianBBB A+ RatedAngi Super Service Award

Maintenance Tips

Test all GFCI and AFCI breakers monthly by pressing the test button and verifying they trip properly
Avoid overloading outlets with multi-plug adapters or daisy-chained power strips
Replace damaged or cracked outlet covers immediately to prevent contact with live wiring
Listen for buzzing or crackling sounds from outlets, switches, or walls and call an electrician if heard
Schedule a professional electrical inspection for any home over 40 years old to identify hidden hazards

Safety Warnings

Never ignore burning smells coming from outlets, switches, or electrical panels -- this indicates active overheating or arcing
Stop using any outlet that sparks during normal use and call a licensed electrician immediately
Do not repeatedly reset a breaker that keeps tripping -- the breaker is protecting you from a potentially dangerous fault
Water and electricity are a lethal combination -- if water contacts your electrical system, do not touch anything and call emergency services

Code Requirements

All repairs are brought to current NEC standards to ensure long-term safety and code compliance
GFCI protection must be retrofitted in kitchens, bathrooms, garages, and outdoor outlets during repair work
Wire gauge must match circuit amperage -- using undersized wire is a fire hazard prohibited by code
All wire connections must be made inside approved junction boxes with proper covers per NEC requirements
Our Promise

Why Choose AJ Long Electric for Troubleshooting & Repairs

AJ Long Electric brings a diagnostic-first approach to every troubleshooting call, because fixing the right problem the first time is always more cost-effective than repeated service visits that only address symptoms. Our electricians arrive with professional Fluke multimeters, clamp meters, circuit tracers, and thermal imaging cameras -- the same equipment used by electrical forensic investigators. This technology lets us see inside walls without cutting them open, trace circuits through complex routing, and identify failing connections before they cause fires. We have deep experience with every wiring type found in Northern Virginia, from knob-and-tube in historic Alexandria properties to aluminum wiring in 1970s Burke split-levels to modern smart-home installations in Ashburn. Our team understands the specific permit requirements of Fairfax, Loudoun, Prince William, and Arlington counties and handles all necessary paperwork. We provide clear upfront pricing before starting any repair, and our 90-day warranty means if the same issue recurs, we return at no charge. Our Google reviews consistently mention our thoroughness, honesty, and ability to solve problems that other electricians could not diagnose.

Licensed

Virginia Licensed Electricians

Insured

Fully Bonded & Insured

40+ Years

Serving Northern Virginia

5-Year Warranty

On All Workmanship

Service Areas

Troubleshooting & Repairs Available Throughout the DMV

We proudly provide troubleshooting & repairs services across Northern Virginia, Washington DC, and Maryland. Click on your area to learn more.