
Wiring & Rewiring Services in Suffolk County
Professional Wiring and Rewiring
for Homes and Businesses
Certified Electricians of Long Island provides wiring and rewiring services across Suffolk County, NY — including new wiring, whole-house rewiring, remodel wiring, circuit additions, and electrical updates designed for safety, reliability, and modern use.
Licensed & Insured
Fully covered & code-compliant
Certified Professionals
Licensed & trusted
Residential & Commercial
Both property types
New & Replacement Wiring
All project types
The Foundation of Every System
Electrical Wiring Should Support Safety, Reliability, and Modern Demand
Electrical wiring plays a major role in how safely and reliably a property functions every day. When wiring is outdated, damaged, undersized, or no longer aligned with how the property is used, upgrades can improve performance and create a safer electrical foundation.
Certified Electricians of Long Island provides wiring and rewiring services for residential and commercial properties throughout Suffolk County. Whether the project involves replacing older wiring, adding new circuits, supporting a renovation, or updating parts of the electrical system — we approach the work with professionalism, organization, and long-term reliability in mind.

Licensed & Insured
Fully covered · Suffolk County
Is It Time for an Update?
Signs You May Need Wiring or Rewiring Work
Wiring needs don't always announce themselves with an obvious failure. These are the most common situations where wiring work becomes the right next step.
Older wiring that no longer meets current needs
Homes with aging or outdated electrical wiring may benefit from partial or full replacement to support modern use.
Renovation or remodel in progress
Wiring work is a natural part of renovations — walls are open, layouts change, and new circuits need to be planned and run properly.
Adding new electrical loads
New lighting, appliances, EV chargers, office equipment, or other additions often require dedicated circuits and updated wiring.
Recurring electrical issues
Repeated trips, intermittent outages, or persistent performance problems can sometimes be traced back to wiring that needs updating.
Outlet, switch, or fixture updates
Device upgrades and replacements often involve updated connections and routing as part of the broader improvement project.
Improving reliability and future capacity
Many property owners invest in wiring upgrades to improve the overall electrical foundation and create room for future improvements.
What to Expect
What's Included in Wiring and Rewiring Projects
Every wiring project we complete is organized, professional, and built to support long-term electrical performance. Here's what each project covers from evaluation to completion.
Evaluation of Existing Setup & Project Needs
We review the current wiring, assess what the project requires, and plan a clear path forward before any work begins.
Circuit Planning and Routing
New circuits are planned and routed to meet current and future load needs, properly sized and organized throughout the property.
Wiring and Component Installation
New wiring is installed cleanly with proper connections to outlets, switches, fixtures, panels, and other electrical components.
Testing for Safe Performance
All circuits and connections are tested to verify safe, reliable operation before the job is considered complete.
Clear Communication Throughout
We keep you informed at every stage of the project and walk you through the finished work before we leave.
Certified Professionals
Licensed electricians serving all of Suffolk County with code-compliant, quality work.
Do Not Ignore These Signs
Warning Signs That Your Wiring Needs Attention
Some electrical issues are more than an inconvenience — they are potential safety hazards. If you notice any of the following, contact a licensed electrician promptly.
Outdated or Damaged Wiring
Homes with knob-and-tube or aluminum wiring, or wiring built before 1970, may have hazardous conditions that should be evaluated by a professional.
Repeated Breaker Trips
A breaker that trips repeatedly signals an overloaded circuit, wiring fault, or failing breaker that needs professional attention.
Hot Outlets or Switch Plates
Heat from an outlet or switch indicates a wiring problem or overload that should not be ignored.
Burning Smell
A burning odor from an outlet, switch, or panel is a serious warning sign. Turn off the circuit and call immediately.
Sparks from Outlets
Persistent sparking when plugging in a device signals a wiring or outlet problem that requires prompt evaluation.
Persistent Flickering Lights
Flickering or dimming lights throughout the home may indicate loose connections or deteriorating wiring.
Who We Serve
Wiring Solutions for Residential and Commercial Properties

Residential Wiring
Homeowners often need wiring services during renovations, additions, panel upgrades, lighting improvements, or when older wiring no longer supports how the home is used today. We provide clean, organized residential wiring solutions that support safety and long-term performance.
Coming SoonCommercial Wiring
Businesses and property managers rely on wiring that supports lighting, equipment, outlets, devices, and everyday operations. We provide commercial wiring and rewiring services across Suffolk County with a professional approach that supports functionality, planning, and dependable results.
Our Reputation
Why Suffolk County Clients Choose Us
Certified Professionals
Licensed electricians performing wiring work safely, code-consciously, and to the highest professional standard across Suffolk County.
Upfront, Honest Pricing
Clear, detailed estimates before any work begins — no surprises, no pressure, and no upselling.
Selden Chamber Member
Locally rooted and community trusted. We build long-term relationships throughout Suffolk County, not just one-time jobs.
Residential & Commercial
We handle wiring projects for both homes and business properties throughout all of Suffolk County, NY.
Organized Project Execution
Professional planning, clean installation, and organized wiring work that makes the finished result look and perform the way it should.
Clear Communication
We explain what's needed, what the work involves, and what it costs — clearly and directly — before any work begins.
Questions & Answers
Frequently Asked Questions
We provide new wiring installation, whole-house rewiring, partial rewiring, remodel and renovation wiring, circuit additions, and electrical system updates for both residential and commercial properties throughout all of Suffolk County, NY.
Ready to Get Started?
Request Your Free Estimate Today
Professional electrical service across Suffolk County, NY. Call or fill out our quick form — we respond promptly.