We're a Hempstead-based crew that does one thing — residential electrical — on the same Capes, Colonials, Hi-Ranches and Splits we grew up around. 3200+ Long Island homes since Sandy, and a licensed electrician still answers the phone.
No sales pitch. No "today only" nonsense. We diagnose your panel, we give you a real number, you think about it.
Six quick questions. We'll call you back within 4 business hours. No sales pitch, ever.
Electrical panel upgrades on Long Island are the most common residential electrical job we do — and the most consequential. Most Long Island homes built before 1980 still have original 100A service or, worse, Federal Pacific Stab-Lok panels that fail silently without tripping. A 200A panel upgrade is not optional when you add an EV charger, heat pump, or induction range — the math simply doesn't work at 100A.
Our panel upgrade process: we coordinate the PSEG disconnect, swap the meter pan, install the new panel (Eaton BR or Square D QO — no off-brand panels), land every circuit, label every breaker, and schedule the Nassau or Suffolk County electrical inspection. You get a green inspection tag before we leave. Most 100A-to-200A upgrades are completed in a single day. 400A service — for homes with whole-home generators, hot tubs, and EV chargers running simultaneously — typically runs two days.
Electrical panel upgrade cost on Long Island: A 100A service upgrade runs $1,800 – $3,200. A 200A panel upgrade is $2,800 – $5,200. A 400A service runs $6,500 – $12,000. These numbers include the permit, PSEG coordination, new meter pan, new panel, and all circuit reconnections. Nassau County towns (Hempstead, Levittown, Massapequa, Hicksville) and Suffolk County towns (Huntington, Babylon, Smithtown, Bay Shore) are all in our service area with no trip charge. Any electrician quoting under $2,800 – $5,200 for a 200A upgrade should be asked what they're omitting — most commonly it's the permit.
| Panel Upgrade Type | Cost Range (Long Island) | Timeline |
|---|---|---|
| 100A panel upgrade (new meter pan, panel, circuits) | $1,800 – $3,200 | 1 day |
| 200A panel upgrade (full service, permit, PSEG) | $2,800 – $5,200 | 1 day |
| 400A service upgrade (dual-panel, large home) | $6,500 – $12,000 | 2 days |
| 200A + subpanel add (garage, addition) | $2,800 – $5,200 + $800–$1,800 | 2 days |
| Federal Pacific Stab-Lok full replacement | $2,800 – $5,200 + $400–$900 | 1–2 days |
We don't chase HVAC, plumbing, or general handyman calls. We upgrade panels, install EV chargers, set generators, and rewire Long Island homes — and we've gotten pretty good at it.
Every Nassau and Suffolk town wants a filed permit and a passed inspection on electrical work. We handle it. If you'd rather talk to a licensed electrician than fill out a form, here's the number.
Every one of these is a Long Island house we worked on. "Before" is the panel the day we pulled up. "After" is the panel we handed to the inspector. No staging, no filters.
Your neighbor's guy doesn't. We file with Nassau or Suffolk, schedule the inspector, and hand you the green tag at the end. Your homeowner's insurance wants this. Your real-estate attorney will ask for it.
We don't do HVAC, plumbing, or handyman work. Just electrical. A journeyman on his 700th panel swap works differently from one on his 10th, and you'll see it in the torque marks on every lug.
We quote you a number. That's the number. No 'today only' discount, no manager call, no pressure to sign tonight. If you need a week to think, take a week.
Nassau #E-1194A. Suffolk #54221-ME. $2,000,000 liability. Workers comp on every guy. Master Electrician on every crew. BBB A+.
No chatbot. No call center. Call Mon–Sat 7am to 7pm and you get Donna in dispatch or Frank in the truck. Nights and weekends, leave a message, we call back before the next morning.
Every person on our trucks lives on Long Island. Frank grew up in Hempstead. Kevin runs the Suffolk service truck. When we say we know Nassau and Suffolk, we mean we know which PSEG foreman handles which route.
“We called four electricians. Frank was the only one who actually looked inside the panel on the first visit. He showed us the burned neutral bar and explained why the dryer kept tripping. Pulled the permit, finished in a day, passed inspection first try. Hired them again a month later for the Tesla charger.”
“I got four quotes, read every Google review twice, and called two of their references. LI Electric Co. was not the cheapest. They were the ones who answered the phone, showed up when they said they would, and the price didn't move after we signed. Generator fired up two weeks later during a nor'easter. Worth every dollar.”
“Our 1952 cape still had some of the original knob-and-tube. Two electricians told us to 'live with it'. Frank walked us through the full rewire plan, pulled the permit, coordinated with the drywall guys, and finished in 8 days. House is finally safe and we can run a microwave and toaster at the same time.”
Our shop is on Fulton Avenue in Hempstead, smack in the middle of the island, so no address on Long Island is more than an hour from our front door.
Every other electrician website makes you fill out a form and wait. We built actual calculators so you can see a real ballpark and plan the job before you ever call us.
Every one of these is a real question we hear weekly on the phone, at walk-throughs, or at the Home Depot contractor desk. No corporate hedging, just the answer.
See all FAQsElectricians Long Island homeowners trust for serious work — panel upgrades, generator installs, EV chargers, whole-home rewires — share four credentials: (1) A Master Electrician license. New York State requires a Master Electrician to pull permits for service changes and generator hookups in Nassau and Suffolk. Ask for the license number. (2) A Nassau County and/or Suffolk County Home Improvement Contractor (HIC) license — each county requires its own, and a contractor licensed in one cannot legally pull permits in the other. (3) PSEG coordination experience. Panel upgrades and generator installs in Nassau and Suffolk require PSEG utility coordination for the disconnect and reconnect. Electricians Long Island who do this every week know the right contacts and can complete the process in a single day. (4) An active general liability certificate ($1M+) and workers' compensation on every crew member — not a blanket policy that excludes your job. Long Island Electric Co. holds both Nassau and Suffolk HIC licenses, employs a Nassau-licensed Master Electrician on every permit job, and is a Generac PowerPro Elite dealer for generator installations. Nassau #{siteConfig.licenses.nassau}, Suffolk #{siteConfig.licenses.suffolk}.
Pricing varies by panel brand, service entry, grounding, and PSEG coordination. Typical ranges for Long Island homes:
See our full pricing guide for the detailed math, or use the estimator to get your own ballpark in 2 minutes.
For panel upgrades, EV chargers, generators, and any rewiring — yes. Every Nassau and Suffolk town has its own building department and the rules vary. We pull the permit for you and handle the inspection. See our Nassau & Suffolk permit guide for the details on every municipality we work in.
Manufacturer warranties run 10 to 25 years on breakers and panels (Eaton, Square D, Siemens), 5 years on Generac generators, and 3 to 5 years on most EV chargers. On top of that, our workmanship warranty is 10 years on every job we touch. If it fails because of how we installed it, we come back and fix it, free.
Yes. Very common in pre-1950 homes in Hempstead, Freeport, Levittown, Huntington, Northport. We can rewire room-by-room or whole-house, coordinate the drywall patches, and get you through inspection. Typical whole-home rewire is 6 to 12 working days depending on size and finish complexity.
Most straightforward 100A-to-200A panel upgrades are a single day — power off around 8am, PSEG disconnect, new service entry, new meter pan, new panel, all circuits re-landed, inspector on site, power back on before dinner. 400A services or anything with buried service conductors run 2 to 3 days.
Yes. We partner with Hearth, GreenSky, and Enerbank to offer 0% promotional periods, low fixed-rate loans, and no-prepayment-penalty terms. You can pre-qualify in about 60 seconds with no impact on your credit score. See our financing page for the options.
A generator installer in Nassau County NY must hold an active Nassau County Home Improvement Contractor (HIC) license and carry at minimum $1M in general liability insurance. For whole-home standby generators, the installer should also be a certified dealer for the generator brand — not just a general electrician who occasionally does generator work.
Long Island Electric Co. holds Nassau HIC #E-1194A and is a Generac PowerPro Elite dealer — the top certification tier Generac awards. We pull the gas permit, pull the electrical permit, coordinate PSEG for utility coordination, pour the pad, and handle the annual maintenance contract if you want one. See our Nassau County generator guide.
A standby generator (also called a whole-house generator) is permanently installed outside your home, connected to your gas line, and wired through a transfer switch. It turns on automatically within seconds of a power outage — whether you are home or not — and runs until utility power returns. Standby generators for Long Island homes typically run on natural gas from PSEG or propane from a tank.
A portable generator runs on gasoline, requires manual setup, and must never be run inside or near an open window — the leading cause of generator-related carbon monoxide fatalities. Portable units make sense for camping or short outages. For Long Island homeowners who remember Superstorm Sandy or Hurricane Isaias, a whole-home standby generator is the real answer. Read our whole-house generator guide for Long Island.
Yes. Long Island Electric Co. holds an active Nassau County Home Improvement Contractor license and a Suffolk County HIC license. Every crew is led by a licensed Master Electrician — not an apprentice, not a subcontractor. We carry $2 million in general liability insurance and workers' compensation on every technician. We pull permits on every qualifying job in Nassau and Suffolk, and we handle the inspection from start to sign-off.
Yes. We install dedicated 240-volt circuits and outlets throughout Nassau and Suffolk County for EV chargers, dryers, ranges, air compressors, and hot tubs. The job includes a dedicated breaker in your panel, properly sized wire, and a pulled permit. Most 240V outlet installs are completed in a single visit. See our outlet installation page for pricing.
Yes. We're a Tesla Certified Installer and we install EV chargers throughout Nassau County — Hempstead, Garden City, Mineola, Massapequa, Levittown, Plainview, Syosset, and everywhere in between. A typical installation includes running a dedicated 240V circuit from your main panel to the garage, mounting the charger, pulling the permit, and passing the inspection. We also install NEMA 14-50 outlets for non-Tesla vehicles and for homeowners who prefer a portable charging solution.
We cover all of Nassau County and all of Suffolk County. In Nassau that includes Hempstead, Garden City, Mineola, Levittown, Massapequa, Long Beach, Hicksville, Plainview, Syosset, Oyster Bay, and every incorporated village. In Suffolk we run trucks to Huntington, Smithtown, Babylon, Bay Shore, Commack, Patchogue, Islip, Port Jefferson, Sayville, East Northport, and the full length of the island. Our shop is on Fulton Avenue in Hempstead — no Long Island address is more than an hour away.
Costs vary by job type. Most service calls in Nassau and Suffolk County start around $150–$300 for diagnostics, with common jobs ranging from outlet installation at $200–$500 to 200A panel upgrades at $2,800 – $5,200 and EV charger installs at $950 – $2,800. We give you a real number before we start — no surprises at the end. Use our free estimator for a project-specific ballpark in 2 minutes, or see our full pricing guide.
Yes. For genuine electrical emergencies — complete power loss, burning smell, sparking panel, or anything that poses an immediate safety risk — call us at any hour. During business hours (Mon–Sat, 7am to 7pm) a licensed electrician answers directly. After hours, leave a message and we call back before morning. For non-emergency work we schedule during regular business hours. We serve all of Nassau and Suffolk County for emergency calls.
Tell us your address and a licensed electrician will call you back within 4 business hours to schedule a walk-through. The estimate is free. The walk-through takes 30 minutes. No pitch at the end.
or fill out the form, it takes 20 seconds
Five fields. We take it from there.
