Hear from Our Customers
Your panel wasn’t designed for how you live now. Most homes in Denton County built before 1990 are still running 100-amp panels that can’t handle modern electrical loads—smart thermostats, EV chargers, multiple AC units running through July and August. You’re not asking for too much. Your system’s just outdated.
When we upgrade your panel to 200-amp service, breakers stop tripping when you’re trying to cook dinner. Lights stay steady when the dishwasher kicks on. Your home handles what you actually plug into it without forcing you to choose between comfort and function.
You also get whole-house surge protection that keeps your electronics safe during the storms that roll through North Texas every spring. One lightning strike can fry thousands of dollars in equipment. Surge protection stops that before it starts, and it can cut your electric bill by up to 15% by reducing phantom power draw.
Carroll Service Co started in Fort Worth as a family-owned electrical contractor, and we’ve spent over 25 years building a reputation on showing up when we say we will and doing the work right the first time. We’re not the cheapest option in Denton County—and that’s intentional. You’re paying for electricians who carry current Texas licensing, comprehensive insurance, and the experience to find the actual issue instead of just swapping parts until something works.
We hold an A+ rating with the Better Business Bureau and multiple Super Service Awards from Angie’s List because we treat your home the way we’d treat our own. No shortcuts. No surprises. No coming back three months later to fix what we already touched.
Denton County has older housing stock mixed with new construction, and that means electrical systems that range from barely functional to overbuilt. We’ve worked on both, and we know what fails first when the grid gets stressed during peak summer demand.
You call or submit a request online, and we schedule a time that actually works for your schedule. We don’t give you a four-hour window and show up at the end of it. When our electrician arrives, they’ll ask what’s been happening—when the problem started, what makes it worse, whether it’s getting more frequent. That context matters.
Next, we inspect your electrical system to find the root cause. If your breaker keeps tripping, we’re checking the panel, the circuit load, the wiring condition, and whether your system’s just undersized for what you’re asking it to do. We’ll explain what we find in plain terms, show you the options, and give you transparent pricing before we touch anything.
Once you approve the work, we handle the repair or installation the same day in most cases. Our trucks carry commercial-grade components and UL-listed materials, so we’re not making extra trips to pick up parts. If we’re upgrading your panel or installing a generator, we pull the permits, schedule the inspections, and make sure everything passes the first time. You get a comprehensive warranty covering parts and labor, with panel upgrades receiving the longest coverage period.
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We handle electrical panel upgrades from outdated 100-amp service to 200-amp systems using NEMA-rated components that meet current NEC codes. That includes replacing aluminum wiring in older homes, which is a fire hazard when it starts to degrade. If your outlets feel warm during peak AC use or your lights flicker when appliances kick on, that’s the wiring telling you it’s overloaded.
Backup generator installation is critical in Denton County. ERCOT’s grid gets stressed every summer, and storms knock out power for days at a time. We install automatic standby generators that turn on within seconds of an outage and run until utility service comes back. We handle the permits, the gas line connection, the transfer switch installation, and the startup certification. You don’t lift a finger.
Whole-house surge protection stops voltage spikes from damaging your electronics, HVAC system, and appliances. One surge can destroy a compressor that costs $2,000 to replace. Surge protection costs a fraction of that and works silently in the background every time lightning strikes nearby or the grid fluctuates.
We also install EV chargers, recessed lighting, outdoor lighting systems, and dedicated circuits for home offices or workshops. If it runs on electricity and it’s in your house, we’ve done it before.
Your panel needs an upgrade if breakers trip frequently, especially when you’re running normal household loads like the AC, dryer, and kitchen appliances at the same time. That’s your system telling you it can’t handle the demand. Most homes in Denton County built before 1990 have 100-amp panels, and modern homes need 200-amp service to run efficiently.
Other signs include warm or discolored breaker switches, a burning smell near the panel, or flickering lights when appliances turn on. If your panel still uses fuses instead of breakers, it’s outdated and potentially dangerous. Aluminum wiring, which was common in homes built between 1965 and 1973, also creates fire risks as it ages and should be replaced during a panel upgrade.
Upgrading your panel isn’t just about stopping breakers from tripping. It’s about protecting your home from electrical fires, making sure your system passes inspection if you sell, and giving yourself the capacity to add modern conveniences like EV chargers or a backup generator without overloading your circuits.
Most homes in Denton County need a generator between 16kW and 22kW to cover essential circuits during a power outage. That includes your AC, refrigerator, a few lights, and outlets for phones and medical equipment. If you want to run your whole house without thinking about what’s on, you’re looking at 22kW to 26kW depending on your square footage and how many AC units you have.
The calculation depends on your total electrical load. We add up the wattage of everything you want to keep running—HVAC systems are the biggest draw, usually around 3,500 to 5,000 watts per unit—and size the generator accordingly. Undersizing a generator means it’ll run constantly under strain and wear out faster. Oversizing wastes money upfront and costs more in fuel over time.
We also factor in whether you’re on natural gas or propane. Natural gas generators connect directly to your utility line and never run out of fuel. Propane requires a storage tank, and you’ll need to monitor levels during extended outages. Both work well in North Texas, but natural gas is more convenient if it’s available at your property.
A standard panel upgrade takes four to eight hours depending on the complexity of your system and whether we’re also replacing outdated wiring. That includes disconnecting your old panel, installing the new 200-amp panel with modern circuit breakers, reconnecting all your circuits, and testing everything to make sure it’s working correctly. Your power will be off during the work, so plan accordingly.
If your home has aluminum wiring or we’re adding circuits for new appliances, that adds time. We also need to schedule an inspection with your local municipality after the installation is complete, which usually happens within a few days. The inspection confirms that everything meets current electrical codes and is safe to operate. We handle the permit and inspection scheduling—you don’t have to deal with any of that.
Most panel upgrades happen in a single day. We show up in the morning, complete the installation, clean up, and restore your power by late afternoon. You’ll have a modern electrical system that handles your actual usage without constant breaker trips or safety concerns.
Whole-house surge protection installs at your electrical panel and stops voltage spikes before they enter your home’s wiring. Power strips only protect whatever’s plugged into them, and they wear out over time without telling you. A lightning strike or grid surge sends thousands of volts through your electrical system in milliseconds. Power strips can’t react fast enough to stop that kind of spike, and they definitely don’t protect hardwired appliances like your HVAC system, water heater, or garage door opener.
Whole-house surge protection costs a few hundred dollars to install and works for your entire electrical system. It absorbs surges from lightning, utility switching, and grid fluctuations that happen dozens of times a year in North Texas. Those small surges degrade your electronics over time even if they don’t cause immediate failure. Surge protection extends the lifespan of everything electrical in your home and can reduce your electric bill by up to 15% by eliminating phantom power draw.
You can use both. Whole-house protection handles the big surges, and quality power strips add an extra layer for sensitive electronics like computers and home theater equipment. But the whole-house system is the foundation—it’s what keeps a lightning strike from frying your AC compressor or your refrigerator.
Yes. We pull all required permits and schedule inspections for panel upgrades, generator installations, and any electrical work that requires approval from your local municipality. That’s part of the service—you don’t have to call the city, figure out what paperwork they need, or take time off work to meet an inspector. We handle it from start to finish.
Electrical work in Texas requires permits to ensure it meets National Electrical Code standards and local requirements. Inspectors check that the installation is safe, properly grounded, and won’t create fire hazards or code violations. If you skip the permit process, you’re risking failed inspections when you sell your home, and your insurance company can deny claims if unpermitted work causes damage.
We’ve been working in Denton County for years, and we know what inspectors look for. Our work passes on the first attempt because we follow code requirements on every installation. You get documentation showing the work was done legally and safely, which protects your home’s value and keeps you covered if anything ever goes wrong.
Panel upgrades in Denton County typically range from $2,000 to $4,500 depending on your current system, whether we’re replacing wiring, and how many circuits you need. That includes the new 200-amp panel, circuit breakers, labor, permits, and inspection fees. If your home has aluminum wiring or we’re adding dedicated circuits for large appliances, the cost goes up because there’s more work involved.
The price also depends on your panel’s location and accessibility. Panels in garages or exterior walls are easier to work on than panels buried in closets or finished basements. We give you transparent pricing before we start so you know exactly what you’re paying. No surprises when the job’s done.
A panel upgrade is preventative maintenance that costs far less than emergency repairs after a fire or major electrical failure. It also increases your home’s resale value and makes it easier to pass inspection if you sell. Most importantly, it gives you a system that works the way you need it to without constant breaker trips or safety risks.
