John Dorn Electric has been handling residential and commercial electrical work across Mt. Juliet and Wilson County since 1983. That is over four decades of showing up, doing the job right, and leaving properties safer than we found them. Whether you need a quick repair or a full service upgrade, we bring licensed electricians to the job and keep the work honest. No pressure and no gimmicks, just safe, solid wiring. Arrives fast. Wires it right. Priced fair.
Call (629) 313-9459 for a quote on any electrical job, large or small.
No matter what is going wrong with your wiring, we can track it down and fix it. Flickering lights, dead outlets, breakers that trip the moment you plug something in, wiring that smells warm or looks scorched. These are not problems to sit on. They are signs that something in the system is working against you, and the longer it goes unaddressed, the more it can cost you.
Our troubleshooting process starts with a real diagnosis, not a guess. We trace the fault, explain what we found, and give you a clear picture of what the repair involves. That includes GFCI and AFCI outlet testing and replacement, which are common points of failure in bathrooms, kitchens, garages, and bedrooms. Code-compliant wiring is the standard on every repair we do, not an upsell.
Call us and we'll walk you through the fix.
Whether this is your first repair or your tenth, you deserve wiring done right the first time. That is what we deliver on every outlet and lighting job we take.
We install standard outlets, GFCI outlets, AFCI outlets, and USB combination outlets throughout the home. Dimmer switches, three-way switches, and standard replacements are all part of the everyday work we handle. If a switch feels warm, sparks when you flip it, or simply stops working, we will get it sorted.
On the lighting side, we install recessed lighting, LED fixtures, under-cabinet lighting, and pendant or flush-mount fixtures throughout any room. Ceiling fan installation is a common call, and we handle both the fan and the wiring that feeds it. If there is no existing switch leg or circuit, we run one. The job gets done cleanly and the fixture works the way it should when we leave.
We'll take care of the circuits from here.
When the panel is the problem, or the problem traces back to a panel that was never built for today's load, we handle that work from start to finish. Breaker replacement, panel repair, 100-to-200-amp service upgrades, and full service entrance work are all in our wheelhouse. We do load calculations before any upgrade so the new panel is sized correctly for the home.
Older homes in Wilson County sometimes still carry knob-and-tube wiring or aluminum branch circuit wiring. Both present real risks and both are jobs we take on. Full rewiring or targeted remediation, we do the work to current code.
Dedicated circuits are one of the most practical upgrades a homeowner can make. A dryer, range, refrigerator, washer, or dishwasher each performs better and more safely on its own circuit. We also run 240-volt outlets and the dedicated circuits that supply the electrical capacity for major household loads. If your panel needs room to handle that added draw, we handle the upgrade at the same time.
Give us a ring and consider it handled.
Good outdoor lighting does three things at once: it improves how your property looks, it helps people move around safely after dark, and it discourages unwanted activity. We install landscape lighting, security lighting, motion sensor lights, flood lights, and weatherproof exterior outlets for any property type.
Every outdoor circuit we run is grounded and bonded to code. Weatherproof outlet installations are done with the right covers and boxes for the exposure. If you are adding lighting to a deck, driveway, garage, or building perimeter, we can design and install a setup that works for the space and holds up to Tennessee weather.
Call and we'll get the current flowing right.
Mt. Juliet and the surrounding Wilson County area have grown fast over the past two decades, and that growth puts real pressure on older electrical infrastructure. On top of that, Tennessee's four-season climate means the electrical system carries heavy heating and cooling loads year-round. Add severe thunderstorms, the occasional tornado, and ice storms that knock out power for days at a time, and you have a region where panel capacity, backup power, and surge protection are not optional extras. They are practical investments.
Older homes throughout the area were built when a 100-amp service was considered plenty. Today, between high-draw appliances, EV chargers, and the electrical demand of modern HVAC systems, that capacity is often not enough. We assess the current service, run the load calculations, and upgrade the panel and service entrance to handle what the home actually needs. The work is done to current code, and we pull the permit when required.
When a severe storm or ice event knocks out the grid, a properly installed standby generator keeps the lights on and the critical circuits running. We handle the transfer switch installation, the generator hookup, and the connection between the generator and the home's electrical system. We take pride in the electrical work we leave behind, and a generator installation is one of those jobs where the details matter. A correctly installed transfer switch protects both the home and the utility workers on the line.
Mt. Juliet sees its share of lightning, and the newer homes in the area are packed with electronics, smart devices, and appliances that are sensitive to voltage spikes. A power strip surge protector offers limited protection. A panel-level whole-home surge protection device intercepts spikes before they reach any circuit in the house. We install these devices at the panel, and they work alongside any strip-level protection you already have. Quick response. Straight pricing. No surprises at the panel.
A Level 2 home EV charger lets you plug in overnight and wake up to a full charge. The installation involves running a dedicated 240-volt circuit from the panel to the charging location, usually a garage or carport, and verifying that the panel has the capacity to support the added load. If it does not, we handle the panel work at the same time.
We handle the permit when required and make sure the installation meets current electrical code. If you are not sure whether your panel is ready or where the charger should go, we will walk through it with you on the call.
We'll take care of the circuits from here.
Whether this is your first repair or your tenth, a safety inspection gives you a clear picture of where the system stands. We do home electrical inspections for buyers before closing, for sellers who want to know what a buyer's inspector might flag, and for homeowners who just want peace of mind about an older home. If something is not up to code or presents a safety risk, we tell you plainly and give you the options.
For remodels and additions, we handle rough-in wiring, finish wiring, smoke detector installation, carbon monoxide detector wiring, and bathroom fan wiring. If you are adding a room, finishing a basement, or updating a kitchen, we coordinate with your contractor or work directly with you to get the electrical side done right and inspected.
Call us and we'll walk you through the fix.
Property managers trust us to keep their buildings powered, and we understand what that means in practice. Tenants call at inconvenient hours. Problems need to be diagnosed and fixed without disrupting other units. We work with landlords and property managers across Wilson County to keep rental properties safe and up to code.
On the residential side, we work with homeowners in all situations: older homes that need updated wiring, new construction that needs finish work, condos and townhouses, and homes being prepared for sale. If you are a renter dealing with an electrical issue, we are happy to coordinate with your landlord directly.
For commercial customers, we serve small businesses, office buildings, retail spaces, restaurants, and warehouses throughout the area. Whether it is a new circuit for equipment, a panel upgrade for added load, or a safety inspection before a lease renewal, we handle the work professionally and on schedule.
Hire us and you are hiring a neighbor who knows the area.
We are available for same-day service when the schedule allows, and we take calls for urgent electrical problems including after-hours and weekend availability. If something in your home or building needs attention today, call and we will tell you honestly what we can do.
Pricing is straightforward. We give you a quote before the work starts so there are no surprises at the end of the job. Call (629) 313-9459 to get an estimate on any repair, installation, or upgrade.
We serve Mt. Juliet as our home base and regularly work throughout Wilson County, including Lebanon, Hermitage, Old Hickory, Watertown, Gladeville, and the surrounding communities.
We arrive, assess the situation, and explain what we found before touching anything. Once you approve the work, we complete the repair or installation, test everything to confirm it is working correctly, and walk you through what was done before we leave. Work is performed by licensed electricians and held to current code on every visit.
A straightforward 100-to-200-amp panel upgrade typically takes most of a day. The power to the home will need to be off for a portion of that time while we swap out the panel and service entrance equipment. We let you know what to expect for your specific situation when we give you the quote.
Common signs include breakers that trip frequently, lights that dim when appliances kick on, a panel that feels warm or makes buzzing or crackling sounds, and a fuse box that has never been converted to a breaker panel. If you are adding an EV charger, a generator hookup, or major appliances and the panel is already running close to capacity, that is another clear indicator. Call us and we will assess the load and tell you what the system can actually handle.
It depends on the job. Repairs and installations that involve live circuits require us to de-energize the affected circuit or the whole panel while we work. We coordinate that with you before we start so you can plan around any downtime. We do not work on live wiring where it can be avoided.
Yes. When a permit is required for the work, we handle pulling it and scheduling the inspection. Code-compliant work that is properly permitted protects your home, your insurance coverage, and your ability to sell the property. We do not skip that step.
We handle the electrical side of the installation: running the circuits, installing the transfer switch, and connecting the generator to your panel. Generator sizing depends on what circuits you want to keep running during an outage. Before installation, we talk through your priorities and make sure the electrical setup matches the generator's capacity. A properly installed transfer switch is essential for the safety of both your household and the utility workers on the line.
A Level 2 EV charger runs on a dedicated 240-volt circuit sized for the charger's amperage rating. Before installation, we assess the panel to confirm it has the available capacity. If an upgrade is needed, we handle that at the same time. We also confirm the best routing for the circuit and make sure the finished installation meets current electrical code.
A breaker trips when a circuit is drawing more current than it is rated for, which can happen from a single overloaded circuit or from a wiring fault. Occasional tripping on a heavily loaded circuit is normal. Frequent tripping on a circuit that is not overloaded, or a breaker that will not stay reset, points to a fault in the wiring, a failing breaker, or a panel that is undersized for the load. We diagnose the actual cause rather than just resetting and moving on.
A buzzing sound from an outlet or switch usually means a loose connection or a wiring issue that is arcing inside the box. Warmth on the cover plate, discoloration, or a burning smell are more serious signs that should be addressed immediately. These are not cosmetic issues. Stop using the outlet or switch and call us to get it looked at.
We do not install or work on outdoor wiring in active rain or wet conditions where safety is a concern. If weather pushes a scheduled outdoor job, we will contact you to reschedule. All outdoor wiring we install uses weatherproof boxes, covers, and fittings rated for the exposure so the installation holds up to Tennessee weather once it is in place.
Clear access to the main panel and any subpanels, and move furniture or stored items away from the areas where we will be working. If we are running wiring through a finished space, we will let you know in advance what access points are needed. The more accessible the work areas are, the faster and cleaner the job goes.
Yes. Electrical work involves open panels, exposed wiring, and tools that are not safe around children or animals. Keeping them out of the work area protects them and lets us focus on the job. We will let you know which areas to keep clear when we arrive.
John Dorn Electric has been the electrical contractor Wilson County homeowners and businesses have called since 1983. Fast response, licensed electricians on the job, and all residential and commercial electrical work handled under one roof. You schedule it. We power it. Simple as that.
Call (629) 313-9459 for a quote and let us take it from here.
From a tripped breaker to a full panel upgrade, we handle the complete range of residential and commercial electrical work across Mt. Juliet and Wilson County. The table below lays out what each service covers, who it is best suited for, and a practical note to help you decide what to schedule first. Call (629) 313-9459 and we will talk through exactly what your home or building needs.
| Service | Scope of Work | Ideal For | Things to Know |
|---|---|---|---|
| Older-Home Rewiring | knob-and-tube removal, aluminum wiring remediation, grounding and bonding upgrades, whole-home or partial rewire | owners of pre-1980 homes in Mt. Juliet and Wilson County dealing with aging wiring, insurance requirements, or a recent home inspection flag | Ungrounded outlets and outdated wiring are common in older homes across the area. We assess what is there and give you a straight picture of what the remediation involves. |
| Electrical Repairs & Troubleshooting | dead outlets, tripping breakers, flickering or dimming lights, circuit faults | any homeowner or business with an electrical problem that needs a same-day diagnosis | Where possible we complete the repair on the same trip so you are not waiting on a callback. |
| Backup Generator Installation | transfer switch installation, generator circuit hookup, panel connection and load wiring, code-compliant disconnect | homeowners who need to keep critical systems running during Tennessee storm outages | A transfer switch is required for safe operation. It protects utility workers and your household. We wire it to code on every installation. |
| EV Charger Installation | dedicated 240-volt circuit, Level 2 charger outlet or hardwired install, panel capacity check, garage and driveway runs | EV owners who want overnight charging instead of waiting days on a standard outlet | We check panel capacity before running the circuit so the added load does not push an older service past its limits. |
| Breaker & Fuse Repair | breaker replacement, fuse box service, nuisance trip diagnosis, panel interior inspection | homes with a breaker that trips repeatedly or a fuse box that keeps blowing | A breaker that trips under normal load often points to a wiring issue, not just a worn breaker. We trace the cause before replacing parts. |
| Whole-Home Surge Protection | panel-level surge protector installation, grounding and bonding check, protection for electronics and appliances | any home in Middle Tennessee with smart appliances, electronics, or equipment worth protecting from lightning and grid surges | Panel-level protection is one of the most cost-effective upgrades you can add. It works alongside outlet-level strips, not instead of them. |
| Wiring & Rewiring | whole-home rewiring, knob-and-tube replacement, aluminum branch-circuit remediation, addition and remodel wiring | older homes with outdated wiring that no longer meets code or insurer requirements | Knob-and-tube and aluminum wiring can create insurance problems and safety risks. Replacing it brings the home up to current standards and makes it insurable. |
| Dedicated Appliance Circuits | ranges and ovens, dryers and washing machines, workshop equipment, sump pumps and basement circuits | homeowners adding a major appliance, finishing a basement, or setting up a workshop | Most large appliances require their own circuit. Running a shared circuit can cause nuisance trips and puts the wiring under stress it was not designed to handle. |
| Outlet & Switch Installation | GFCI outlets, AFCI-protected circuits, USB outlets, dimmer switches | homeowners updating kitchens, baths, or outdoor spaces, or adding USB charging where they need it | GFCI protection is required by code in kitchens, bathrooms, garages, and outdoor locations. We bring existing outlets up to current code when we are on-site. |
| Electrical Safety Inspections | whole-home wiring inspection, panel and grounding review, pre-purchase and pre-sale inspections, code compliance check | buyers, sellers, and homeowners who want to know the condition of their electrical system before a problem shows up | A pre-purchase inspection gives buyers a clear picture of what they are getting into before closing. We explain what we find and what, if anything, needs attention. |
| Ceiling Fan Installation | new fan installation, fan and light combo wiring, switch and control upgrade, box and brace replacement | homeowners adding comfort in bedrooms, living rooms, or covered porches | Ceiling fans need a rated electrical box. If the existing box is not fan-rated, we replace it as part of the install. |
| Lighting Installation | recessed and LED lighting, under-cabinet lighting, exterior and security lights, landscape and motion-sensor fixtures | homeowners remodeling a room or adding outdoor security and curb-appeal lighting | We handle the wiring from panel to fixture, so the job is done cleanly and to code whether it is one fixture or a full room. |
| Electrical Panel & Service UpgradesMost Popular | 200-amp panel upgrades, fuse-to-breaker conversions, subpanel installation, load calculation and sizing | homes with a 100-amp panel, a fuse box, or a panel that is running out of capacity for modern loads | Every panel upgrade includes a load calculation so the new service is sized for what you actually need today and in the future. |
How do I know if my panel needs to be upgraded?
A few signs point clearly to a panel that has reached its limits: breakers that trip under normal loads, a fuse box that has never been replaced, circuits that cannot carry the demand of modern appliances, or a panel that is simply full with no room to add circuits. Homes in Wilson County that were built or last updated decades ago often have 100-amp service that was never designed for today's electrical loads. If you are adding an EV charger, a large appliance, or a home addition, we do a load calculation first to confirm whether the existing service can carry it. Call (629) 313-9459 and we will talk through what your panel looks like.
What causes a breaker to trip repeatedly?
A breaker that trips over and over is usually telling you one of three things: the circuit is overloaded and drawing more current than it was sized for, there is a short circuit or ground fault somewhere in the wiring, or the breaker itself is worn and tripping at a lower threshold than it should. Resetting it without finding the cause does not fix the underlying problem. We diagnose the fault on-site and explain what we found before doing any work.
Is electrical work permitted and inspected to code?
Most electrical work beyond basic repairs requires a permit and a code inspection by the local authority. We pull the required permits and make sure the work passes inspection. This matters for your safety, your homeowner's insurance, and the resale value of your property. Work performed by licensed electricians and done to current code is the only standard we work to.
Same-Day and Emergency Availability
Electrical problems do not always wait for a convenient moment. We offer same-day appointments when the schedule allows and take calls for urgent situations every day from 6:30 AM to 10:00 PM.
Are older homes in the area safe to live in without rewiring?
It depends on what is there. Some older homes have been partially updated over the years and are in reasonable shape. Others still carry knob-and-tube or aluminum branch-circuit wiring that can create safety risks and insurance complications. The only way to know is to have the wiring inspected. We look at what is actually in the home and give you a straight answer about whether it needs attention and what that would involve.
What do flickering or dimming lights usually mean?
Occasional flickering when a large appliance kicks on is normal and usually means the circuit is carrying a heavy load. Persistent flickering, lights that dim throughout the house, or a single circuit that flickers without an obvious cause can point to a loose connection, a failing breaker, or a wiring problem that deserves a closer look. It is worth a call rather than waiting to see if it gets worse.
What does EV charger installation involve?
A Level 2 home charger runs on a dedicated 240-volt circuit, the same voltage as a dryer or range. We run the circuit from your panel to the garage or driveway, install the outlet or hardwire the charger unit, and confirm the panel has the capacity to carry the added load without affecting other circuits. If the panel is close to its limit, we talk through whether an upgrade makes sense before we start the circuit run.
Work Performed by Licensed Electricians
Every job is handled by licensed electricians who know the local codes and take the work seriously. We do not cut corners, and we do not leave until the job is done right.
How does backup generator hookup work?
We handle the electrical side of the installation: running the circuits, installing a transfer switch, and connecting the generator to your panel. The transfer switch is what makes the system safe. It isolates your home from the utility grid when the generator is running, which protects utility workers restoring power and prevents backfeed damage to your equipment. We wire it to code and walk you through how it operates before we leave.
Is a warm or buzzing outlet something I should worry about?
Yes. An outlet that is warm to the touch, makes a buzzing or crackling sound, or shows any discoloration around the cover plate is a sign of a wiring problem that needs attention. Stop using it, do not reset anything connected to it, and call us. These are not situations to monitor and see if they improve on their own.
Upfront Quotes With No Surprise Fees
We explain what we found, what the fix involves, and what it will cost before any work begins. If something unexpected comes up, we talk to you first.
How do estimates and pricing work?
We give you a straight quote before any work begins. We explain what we found, what the repair or installation involves, and what it will cost so there are no surprises at the end of the job. If something unexpected comes up once work is underway, we talk to you before we proceed. Call (629) 313-9459 to get an estimate on any job.
Do I need to be home when the electrician arrives?
For most jobs, yes. We need access to the panel, the work areas, and in many cases interior rooms. If you have a situation where you cannot be present, call us and we will talk through what is possible. For commercial properties, a property manager or designated contact works fine.
Are you available for same-day or emergency calls?
Same-day service is available when the schedule allows. We are also available every day from 6:30 AM to 10:00 PM for urgent situations that cannot wait. If something in your home or building needs attention outside standard hours, call (629) 313-9459 and we will tell you honestly what we can do and when we can be there.
Every home and building is a little different, so call (629) 313-9459 and we will give you a straight answer about what your electrical system needs and what it will cost to get it there.
(629) 313-9459