No job is too small
Your home's electrical system is what keeps your family safe, warm, and connected. When something's not right — or you're planning an upgrade — you want a master electrician who shows up, explains things clearly, and does the job right the first time.
No obligation • Free consultation • Same-day service available
Serving Lexington and surrounding areas since 1990
All calls returned same business day. We're here when you need us most
From outlet repairs to full service upgrades, we handle jobs of all sizes
Special care and pricing for senior citizens and veterans
Fully licensed and insured for your protection and peace of mind
We deliberately keep our route small and local. That means a real electrician who knows your neighborhood — and gets to your door fast, not one stretched thin across the whole county.
Business Address: 49 Lexington St, Burlington, MA 01803
Hours: Monday - Friday: 8 AM - 6 PM | Saturday: By Appointment
One call covers the full range — from a single dead outlet to a complete 200-amp service upgrade. Here's what we install, repair, and wire every week for homeowners like you.
Professional 100A to 200A electrical panel upgrades for modern Lexington homes. If your home still has an older 60A or 100A panel, you're likely overloading circuits daily without realizing it.
We replace outdated panels with modern 200A service — handling everything from the meter socket to the breaker box and beyond. This means safer, code-compliant power distribution that can handle today's appliances, EV chargers, heat pumps, and all the demands of a modern household. We coordinate with Eversource for the service disconnect and reconnect, so the project is seamless from start to finish. A proper upgrade also increases your home's resale value and may qualify you for insurance discounts.
Expert diagnosis and repair of electrical problems — flickering lights, dead outlets, tripping breakers, or anything that just doesn't work right. No job is too small, and every call gets my personal attention.
With 35+ years of hands-on experience, I've seen just about every electrical gremlin there is. I use systematic diagnostic methods — not guesswork — to trace the root cause quickly and fix it right the first time. Whether it's a single faulty switch, a buried junction box causing intermittent shorts, or a whole circuit that needs rewiring, you get a thorough evaluation and a clear explanation before any work begins. I carry a fully stocked van so most repairs are completed same-day. You shouldn't have to live with electrical annoyances — and you don't have to.
Generator hookup and transfer panel installation for backup power. Stop worrying about the next storm — keep your lights, heat, refrigerator, and sump pump running when the grid goes down.
We install manual and automatic transfer switches that let you safely connect a portable or standby generator to your home's electrical system. This isn't a DIY extension cord setup — we hardwire a dedicated inlet box outdoors, run properly sized cable to a transfer panel or interlock kit, and ensure the setup meets NEC code so there's zero risk of backfeeding the utility lines. We'll help you size the generator to your needs, whether you want to power just the essentials or your entire home. Once installed, it's as simple as plugging in and flipping a switch.
Specialized 240V wiring for saunas, hot tubs, and spa installations. These high-draw appliances demand dedicated circuits with proper GFCI protection — cutting corners here is dangerous.
We run properly sized conductors from your panel to a weatherproof disconnect box within sight of the spa or sauna, then to the unit itself. Every installation includes a GFCI breaker sized to the manufacturer's specs and a thorough ground-bonding check to eliminate any shock risk. We're familiar with the specific requirements of all major brands — Finnleo, Almost Heaven, Jacuzzi, Bullfrog, and more. Whether it's an indoor infrared sauna or an outdoor 8-person hot tub, we handle the full electrical scope from permit to final inspection. All work meets the strict requirements of NEC Article 680 for pools and spas.
Complete electrical upgrades for kitchen and bathroom renovations. New appliances, task lighting, heated floors, and code-required GFCI/AFCI protection — all handled by one electrician who coordinates seamlessly with your contractor.
A kitchen or bath remodel is one of the most electrical-intensive projects in any home. We rough-in new circuits for double ovens, induction cooktops, microwaves, dishwashers, and disposals. In bathrooms, we wire for heated towel racks, jetted tubs, lighted mirrors, and exhaust fans with humidity sensors. Every outlet near water gets GFCI protection, and we bring your entire space up to current NEC code — including arc-fault protection for all living area circuits. I work directly with your general contractor, designer, and cabinet installer so the electrical scope stays on schedule and nothing gets missed. We're in and out on time, and the final result looks as good as it functions.
Level 2 EV charging station installation with dedicated 240V circuits. Wake up every morning to a full charge — no more gas station detours or hunting for public chargers.
We install all major Level 2 charger brands including ChargePoint, Tesla Wall Connector, Grizzl-E, JuiceBox, and Emporia. The process starts with a load calculation to verify your panel can handle the additional 30-60A draw. We run the proper gauge wire from your panel to your garage, carport, or driveway — through attics, crawl spaces, or conduit as needed — and mount the charger exactly where you want it. If your panel is full or undersized, we can discuss a sub-panel or service upgrade as part of the same project. Every install includes a dedicated breaker, proper grounding, and a clean, professional finish. Most installations take 3-4 hours and you're charging the same day.
Panels, chargers, rewires and more — photographed on actual job sites. Click any image to see the details up close.
The other half is what you can't see — the hazards lurking behind walls that we find and fix every day.
Every photo below came from a Lexington-area home in the past 12 months. Faulty panels. Melted breakers. Burnt outlets still in use. The homeowners had no idea. If your home is 30+ years old and hasn't been inspected, don't wait for something to fail.
Old aluminum or knob-and-tube wiring is a fire hazard
Too many devices on one circuit can cause overheating
Loose wires and poor connections create dangerous sparks
Unprotected outlets near water are code violations
Let me inspect your home's electrical system and identify potential hazards before they become problems
4.8 rating · 53 reviews
Rated 4.8 out of 5 by 53 local homeowners on Google. Real reviews from real customers across Lexington & surrounding towns.
"O'Reilly Electrical recently did work for me (installing an L2 charger and a new outdoor outlet for a well). He was great to work with, and top quality work."
Adam Weinstein
August 8, 2026
"Frank O'Reilly is great! You can reach him at 617-435-1071. He often returns phone calls in the evening."
Pam Hoffman
February 2026
"Frank replied to my initial call within minutes and showed up just a few hours later to resolve several electrical issues in my older home. He worked quickly and all work surpassed my expectations."
Joe Mostika
March 2026
"Frank's a professional. I called Monday, he called me back, gave me an estimate of when he'd call back and when he'd come over, and followed through on both. He dove right in, diagnosed a short within 30 minutes and had the issue resolved 15 minutes later. He's awesome and I highly recommend!"
Allison Perkel
October 2024
"Frank O'Reilly saved me from an unnecessary service call! I had an alarm detector beeping once every minute. I thought it was the hardwired alarm and that it needed to be replaced. I called a couple electricians, Frank being one of them. He texted me about the issue soon after my call and asked questions. He requested I send him a picture of the alarm and, when I described the problem, he asked if there was another alarm in the room. My wife remembered there was — a plugin CO detector hidden by a shelf, beeping for a new battery. He saved me the cost of a service call. The guy knows his stuff! Next time I need an electrician, I'm calling Frank O'Reilly!"
Elliott Stewart
August 9, 2026
"We have used Frank's services twice at our Lexington home. Couldn't be happier with the work he has done for us. He's easy to work with, gives great advice and the work is always excellent."
Krishna Ramachandran
December 2025
"Frank returned my call within 10 minutes and was able to talk me through fixing a blown fuse over the phone. He was friendly and helpful and cared enough to take the time. Thank you, Frank!"
Erin White
August 2025
"Frank was excellent and responded to our call within a few hours. He came the same day, determined the cause of our electrical problem and solved it that same day. We give him our highest recommendation."
Vivien Fiset
February 2026
Real questions from homeowners in Lexington, Burlington, Woburn & surrounding Middlesex County. Straight answers from a licensed master electrician.
Call Frank directly for honest answers about your electrical project — no sales pressure, just straight talk from a master electrician with 35+ years of experience.
Tell us what's going on and we'll get back to you the same business day — call, text, or send the form below.
Location
49 Lexington St
Burlington, MA 01803
Business Hours
Monday - Friday: 8 AM - 6 PM
Saturday: By Appointment
Service Area
Lexington, Burlington, Woburn, Winchester, Arlington, Belmont, Bedford & surrounding Middlesex County towns
Licensed & Insured Electrician