Written by Current Power Electric for homeowners in Frederick County and the surrounding region. General guidance only; every home is different, and when in doubt, turn off the power and call a licensed electrician.
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Everyday electrical problems
Why does my breaker keep tripping?
Breakers trip when a circuit is overloaded, when there's a short circuit or ground fault, or when the breaker itself is wearing out.
Winter is the classic overload season around Frederick: space heaters, heated blankets and holiday lights all land on the same bedroom or living-room circuit. If the trip lines up with a heater or appliance, a dedicated circuit is the fix. If it trips the instant you reset it, leave it off; that's a short, and it needs to be found before the breaker is forced back on.
Why are some of my outlets dead when no breaker is tripped?
Look for a tripped GFCI outlet first, in a bathroom, the kitchen, the garage, the basement or outdoors. One GFCI often protects several outlets downstream, sometimes in another room.
If every GFCI resets and the outlets are still dead, the likely cause is a loose connection at the dead outlet or the one feeding it. That's a quick repair for an electrician; we often diagnose it in minutes.
Why do my lights flicker or dim?
One flickering fixture usually means a loose bulb, a failing LED, or a dimmer that isn't LED-compatible. Flickering across the house, or lights that dim hard when the furnace, well pump or AC starts, points to a loose connection in the panel, meter or service.
Loose connections produce heat, and heat damages equipment, so don't live with whole-house flicker. On rural properties with long service runs, voltage drop can also cause dimming. We can measure it and tell you whether the fix is on your side or the utility's.
An outlet or switch plate feels warm. Is that dangerous?
It can be. Dimmers run slightly warm by design, but regular outlets and switches shouldn't. Warmth means resistance, usually from a loose connection or an overloaded device.
Unplug what's on it and stop using it. If it's hot, discolored, or smells like burning plastic, turn off that breaker and call us. It's a small fix when caught early and a fire risk when ignored.
Half my house lost power but the rest works. What's wrong?
You've probably lost one of the two 120-volt legs that feed your home. That can be the utility's connection, the service wires, the meter, or your main breaker.
Check the main breaker and any tripped breakers first, then call your utility (Potomac Edison serves most of Frederick and Washington counties). If lights are also unusually bright or dim, turn off electronics right away; that pattern suggests a failing neutral, which can damage appliances.
Why do my LED bulbs keep burning out?
LEDs usually fail early from heat, incompatible dimmers, or voltage problems, not because the bulb was defective.
Enclosed fixtures trap heat, so use bulbs rated for enclosed fixtures. Older dimmers designed for incandescent loads stress LED drivers. If bulbs are failing throughout the house, have the voltage checked; a loose neutral or a utility issue can push it too high.
Panels & service upgrades
How do I know my electrical panel needs to be replaced?
Replace a panel that's full, rusted, warm, buzzing, scorched, or more than 30 to 40 years old, and any Federal Pacific (Stab-Lok), Zinsco or Challenger panel.
Many 1960s and '70s homes around Frederick, Hagerstown and Walkersville still have one of these brands or a 100-amp panel with no room left. A replacement also gives you modern AFCI and GFCI protection and space for what's coming: heat pumps, EV chargers, generators and additions.
Do I need 200-amp or 400-amp service?
Most homes are well served by 200 amps. Large homes with electric heat, multiple HVAC systems, a pool or hot tub, a shop, EV charging, or snow-melt systems may need 400-amp service.
We size services from a load calculation, not a guess. We've installed 400-amp services on larger homes, including meter and meter-lug replacements, and we coordinate the disconnect and reconnect with Potomac Edison, BGE or Pepco.
Are Federal Pacific and Zinsco panels actually a problem?
Yes. Both have well-documented histories of breakers that may not trip in an overload or short circuit. That defeats the purpose of the panel.
The failure only appears when the breaker is needed, so years without trouble don't make it safe. Replacement is the permanent fix, and most panel changes take a single day with a permit and inspection.
Should I install a whole-house surge protector?
Yes. A panel-mounted surge protector is inexpensive and protects the electronics in your furnace, heat pump, appliances and well pump controller from lightning and utility switching surges.
Summer thunderstorms and derechos are hard on equipment across the region, and rural lines see more surges than city ones. Use plug-in surge strips at TVs and computers as a second layer.
What's the difference between GFCI and AFCI protection?
GFCI protection prevents electric shock by cutting power when current leaks to ground. AFCI protection prevents fires by detecting dangerous arcing in damaged wiring and loose connections.
GFCIs are required in kitchens, baths, basements, garages, laundry areas, outdoors, and at pools and hot tubs. AFCIs are required on most living-area circuits in new work. When we bring an older kitchen up to code, we typically add both at the panel.
Rural homes, wells & outbuildings
My well pump keeps tripping the breaker or won't start. Is it electrical?
Often, yes. Common causes are a failing pressure switch, a bad capacitor or control box, a worn pump motor drawing too much current, or a loose connection in the circuit.
We test the circuit, the pressure switch and the control box to pin down whether it's an electrical fault or a pump problem, so you're not replacing a pump that didn't need it. If the pump is failing, we'll tell you straight and coordinate with your well contractor.
How do I get power to a barn, detached garage or workshop?
Usually with a feeder from your main panel to a subpanel in the outbuilding, run underground in conduit or direct-burial cable at the depth code requires, with its own grounding at the building.
Distance matters: long runs need larger wire to avoid voltage drop, especially for welders, compressors and heaters. We size the feeder for what you'll run now and later, since trenching twice costs more than upsizing once.
What electrical work do outdoor kitchens and hardscapes need?
Outdoor kitchens need dedicated GFCI-protected circuits for refrigerators, grills, lighting and outlets, and weather-resistant, in-use-rated devices. The wiring has to be planned before the stone and concrete go in.
We've wired outdoor kitchens, pavilions, stone-wall outlets and step lights, and run conduit under slabs and through block walls with the masons. Coordinating early with your hardscaper is what makes the finished result look clean, with no surface-mounted conduit in sight.
Are snow-melt systems worth it?
For steep driveways, stone walkways, steps and entries that ice over, yes. Electric snow-melt cables embedded in the surface keep them clear automatically and reduce slip hazards and salt damage to stone.
The system needs a dedicated circuit (often several) sized for the heated area, GFCI protection, and a controller with a snow-and-ice sensor so it only runs when needed. It has to go in during construction or resurfacing. We've installed snow-melt in stone walkways and can work with your contractor on layout.
Why is the electrical in my barn or outbuilding corroding?
Barns are hard on wiring: moisture, dust, and ammonia from livestock corrode standard boxes, breakers and fixtures quickly, and rodents chew cable.
Agricultural buildings call for wet-location, corrosion-resistant fixtures, enclosed boxes, wiring protected in conduit where animals or equipment can reach it, and GFCI protection. If a barn panel is rusted, replace it before it fails, especially where hay and bedding are stored.
Storms, ice & generators
What size generator do I need for my home?
For essentials like a well pump, furnace blower, refrigerator, sump pump, some lights and outlets, a 7 to 12 kW generator is typical. Whole-home coverage with central air or a heat pump often needs 20 to 26 kW or more.
Well pumps and compressors need extra power to start, so they drive the sizing. We calculate your actual loads and recommend either a standby unit with an automatic transfer switch or a portable with a proper inlet and interlock.
Is it safe to plug a generator into an outlet to power the house?
No. Backfeeding through an outlet can electrocute utility line workers and neighbors, and it can start a fire when grid power returns. It's also illegal.
The safe way is a generator inlet with an interlock kit or a transfer switch. Either one makes it physically impossible for the generator and the utility to be connected at the same time.
What should I do after an ice storm or derecho knocks out power?
Report the outage to your utility, stay far away from downed lines, and assume every wire on the ground is live. If a tree pulled the service wires or meter off your house, you'll need an electrician to repair the meter base and service mast before the utility will reconnect.
Customer-side service damage from falling limbs is common after ice storms, especially on wooded lots near Catoctin Mountain. We repair masts, meter bases and service entrance cable so the utility can restore power.
How do I protect pipes and gutters with heat tape safely?
Use heat cable listed for the purpose, plug it into a GFCI-protected outlet, and never wrap self-limiting or constant-wattage cable over itself unless the manufacturer allows it.
Old heat tape is a known fire risk in crawlspaces and well houses. If yours is more than a few years old, discolored or brittle, replace it. We add dedicated GFCI outlets or thermostat controls where heat tape is needed every winter.
Remodels, older homes & upgrades
What's involved in bringing an older kitchen up to code?
Typically new dedicated circuits for the refrigerator, dishwasher, disposal, microwave and range; at least two 20-amp countertop circuits; GFCI and AFCI protection; and properly spaced countertop outlets, plus the lighting plan.
We've brought kitchens from the 1960s up to code while coordinating with general contractors, adding recessed and pendant lighting, island circuits and the range line. Planning the electrical with the cabinet layout is what makes it work.
Can you run new wiring without tearing up my walls?
Usually. We fish wire through existing walls from the basement, attic or crawlspace, and when there are several ways to route a circuit, we choose the one with the least drywall damage.
Plaster walls in older Frederick homes take more care, but the same approach applies. Small access holes are easy to patch; big open channels aren't necessary in most jobs.
My house is in downtown Frederick's historic district. Does that change electrical work?
Interior electrical work follows the normal permit process, but exterior changes, such as new service masts, meters, exterior lighting or conduit on a visible facade, may need historic-district review.
Historic rowhouses often have knob-and-tube or cloth-insulated wiring, small services and very few outlets. We upgrade carefully, route new work discreetly, and keep the original character of the house intact.
Does knob-and-tube wiring have to be replaced?
It isn't automatically illegal, but it's worth replacing. It has no ground, wasn't designed for modern loads, and its insulation gets brittle. Many insurers won't cover homes with active knob-and-tube.
It's especially risky where insulation has been blown over it in attics or walls, because it was designed to cool in open air. We can trace which circuits are still live and replace them in stages.
What do I need to install an EV charger at home?
A Level 2 charger needs a dedicated 240-volt circuit (usually 40 to 60 amps) and enough spare capacity in your panel.
We check capacity with a load calculation, install either a 240-volt outlet or a hardwired charger, and handle the permit. If your panel is tight, a load-management device can sometimes avoid a service upgrade. Maryland and Potomac Edison incentives change often, so check current programs before buying the charger.
What electrical work does a pool or hot tub need?
Pools and hot tubs need GFCI-protected circuits, a properly located disconnect, and equipotential bonding: connecting the metal parts, rebar, and water to a common bonding grid so there's no voltage difference to shock a swimmer.
Bonding has to be done before concrete and decking go in, and it's inspected. We wire and bond new pools, install hot tub disconnects, and bond gas lines as code requires.
Safety, alarms & working with us
What are Maryland's smoke alarm requirements?
Maryland requires battery-only smoke alarms to be sealed, 10-year long-life units, and alarms more than 10 years old must be replaced. Many homes, especially newer ones and those being renovated, need hardwired, interconnected alarms with battery backup.
We install hardwired, interconnected smoke and CO alarms, so when one sounds they all sound. Put smoke alarms in every bedroom, outside sleeping areas and on every level, and CO alarms on every level if you have fuel-burning appliances or an attached garage.
When is an electrical problem an emergency?
Call right away for a burning smell, smoke, sparks, a hot or buzzing panel, scorched outlets, water on electrical equipment, a shock from anything, or partial power with lights brightening and dimming.
If there's smoke or fire, get out and call 911. Otherwise, turn off the affected breaker, or the main if you're unsure, and call. A single dead outlet or a light that won't come on can wait for a regular visit.
Who can pull an electrical permit in Maryland?
In Maryland, electrical permits are pulled by a licensed master electrician. Frederick County permits and inspections are handled by the county's Division of Permits and Inspections, and some municipalities, such as the City of Frederick, have their own offices.
Permitted work is inspected, which protects you, your insurance coverage and your home's resale. Our work is led by a master electrician who pulls the permit and meets the inspector.
I got a shock from an appliance or a faucet. What should I do?
Stop using it and turn off its circuit. Any shock means current is flowing where it shouldn't, through a failing appliance, a missing ground, a loose neutral, or a bonding problem.
A tingle from a faucet or tub is especially worth a prompt visit, because it can point to a grounding or bonding issue that affects the whole house. On homes with wells, the metal water piping and well casing are part of that picture.
Do you offer free estimates?
Yes. We offer free estimates on projects, and we'll walk you through the options, including the least disruptive way to do the work, before you decide.
For troubleshooting, we'll explain what we found and the cost to fix it before we do the repair.