Hear from Our Customers
You flip a switch and the lights come on. You plug in your phone and it charges. Your breaker doesn’t trip when you run the microwave and the AC at the same time.
That’s what a properly functioning electrical system looks like. No flickering lights when the dishwasher starts. No warm outlet covers that make you nervous. No wondering if your panel can handle what you’re asking it to do.
Most homes in Keller weren’t built for how we live now. You’ve got EV chargers, smart thermostats, multiple computers, and appliances that pull serious power. If your home was built in the 80s or 90s, your electrical system is working overtime—and it shows up as tripped breakers, dimming lights, or outlets that stopped working for no clear reason.
Getting your home’s electrical system updated or repaired means you stop worrying about whether you can run two things at once. It means your family is safer. It means your home is ready for the technology you actually use, not what someone thought you’d need 30 years ago.
Carroll Service Co is a family-owned electrical contractor based in Fort Worth. We’ve been handling residential electrical services in Keller, TX and throughout the DFW area since the late 90s. Fully licensed, insured, and A+ rated by the Better Business Bureau.
We know Keller homes. We know the neighborhoods built in the 80s with undersized panels. We know the additions that were wired by someone’s brother-in-law. We know what fails during Texas heat waves and winter freezes.
Our trucks are stocked with commercial-grade components, so most repairs happen the same day. We pull permits, handle inspections, and make sure everything is code-compliant. You’re not getting a quick patch job—you’re getting work that lasts and protects your home’s value.
First, we show up when we say we will. You’ll get a licensed electrician, not a trainee, and they’ll assess what’s actually going on—not just what you think the problem is. Sometimes a tripping breaker is a bad breaker. Sometimes it’s an overloaded circuit. Sometimes it’s a bigger issue with your panel.
Once we know what we’re dealing with, you get a clear estimate before any work starts. No surprises, no “while we’re here” upsells. If permits are required, we handle that. If inspections are needed, we schedule them. You don’t have to chase down the city or worry about whether it’s done right.
The work itself depends on what you need. Panel upgrades take a few hours to a full day. Rewiring a room or adding circuits is usually a same-day job. Troubleshooting an intermittent issue might take some detective work, but our electricians have seen just about everything in Keller homes over the past 25 years.
When we’re done, your electrical system works the way it should. You’ll have documentation for your records, everything passes inspection, and you’re not left wondering if it’s actually fixed.
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Residential electrical services in Keller, TX cover a lot of ground. Panel upgrades are common—most older homes have 100-amp or 150-amp panels that can’t handle modern loads. Upgrading to 200 amps gives you the capacity for everything you’re running now, plus room to add EV charging or a backup generator later.
Circuit additions and rewiring come up when you’re finishing a garage, adding a home office, or dealing with outlets that don’t work. Older homes in Keller often have aluminum wiring or outdated systems that need replacement for safety reasons. GFCI and AFCI outlets are code requirements now, especially in kitchens, bathrooms, and bedrooms—they prevent shocks and reduce fire risk.
Whole-house surge protection is something more homeowners are adding, especially with expensive electronics and smart home systems. A surge from a lightning strike or grid issue can fry everything plugged in. Surge protection at the panel level stops that before it reaches your devices.
Generator installations have become more common after the winter storms a few years back. Whole-house generators keep your heat, refrigerator, and essentials running during outages. We handle the electrical hookup, transfer switch, and permitting so it’s ready when you need it.
Troubleshooting covers the stuff that’s hard to pin down—intermittent flickering, breakers that trip randomly, outlets that work sometimes but not always. That takes experience and the right tools to track down, but it’s what we do regularly in Keller homes.
If your breakers trip regularly, especially when you’re running normal household appliances, that’s the clearest sign. Your panel is either undersized for your current electrical load, or the breakers themselves are worn out and need replacement.
Other signs include lights dimming when the AC kicks on, outlets that feel warm to the touch, or a panel that’s 20+ years old. Older panels, especially Federal Pacific or Zinsco brands, are known fire hazards and should be replaced regardless of whether they’re “working.”
Most homes built before 2000 in Keller have 100-amp or 150-amp panels. If you’ve added any major appliances, a hot tub, EV charger, or home office equipment, you’re likely pushing the limits of what that panel can handle. Upgrading to 200 amps gives you the capacity you actually need and brings your home up to current electrical code.
It depends entirely on what needs to be done. A service call to diagnose an issue typically runs $100-$150. Simple repairs like replacing an outlet or a breaker might be $150-$300. Adding a new circuit or installing a ceiling fan usually falls in the $300-$600 range.
Panel upgrades are bigger jobs. Upgrading from 100 amps to 200 amps generally costs $2,000-$4,000 depending on your home’s setup and whether the meter needs to be relocated. Whole-house rewiring can run $8,000-$15,000+ depending on square footage and how accessible your walls are.
Generator installations vary widely based on the size of the unit and what you want it to power. A standby generator with installation typically starts around $5,000 and goes up from there. We provide upfront estimates before starting any work, so you’ll know exactly what you’re paying before we touch anything.
Yes. If you’ve lost power, have sparking outlets, smell burning plastic, or your panel is hot to the touch, that’s an emergency. We offer same-day response for situations like that because they’re safety hazards that can’t wait.
Most emergency calls involve tripped breakers that won’t reset, outlets or switches that sparked and stopped working, or partial power loss in the home. Sometimes it’s storm damage or a tree limb that took down your service line. We carry the parts and tools to handle most emergency repairs on the spot.
If it’s after hours or on a weekend, emergency rates apply—but you’re getting a licensed electrician who can actually fix the problem, not just patch it temporarily. For non-emergency work, regular scheduling is available and usually more cost-effective.
Yes, most electrical work requires a permit from the City of Keller. Panel upgrades, circuit additions, rewiring, and generator installations all need permits. Even some outlet or switch replacements require permits if they’re part of a larger project or involve moving wiring.
Permits exist to make sure the work is done safely and up to code. They also protect your home’s value—if you ever sell, unpermitted electrical work can kill a deal or force you to pay for expensive corrections. Insurance companies can also deny claims if they find out major electrical work was done without permits.
We handle the permit process as part of our service. We pull the permit, schedule the inspection, and make sure everything passes. You don’t have to deal with the city or worry about whether it’s done right. It’s built into how we work, and it’s one less thing you have to think about.
For adding a single circuit or rewiring a room, most jobs are done in a day. If we’re running new wiring to your garage, adding outlets to a bedroom, or installing dedicated circuits for appliances, that’s typically a 4-8 hour job depending on how accessible your walls and attic are.
Panel upgrades usually take 4-6 hours. Your power will be off during part of that time, so it’s something to plan around—but we work efficiently and get you back up and running as quickly as possible. If we need to coordinate with the utility company to disconnect and reconnect your meter, that can add time.
Whole-house rewiring is a multi-day project, sometimes a week or more depending on your home’s size and whether walls need to be opened. We’ll walk you through the timeline upfront so you know what to expect. For most standard residential electrical services in Keller, TX, though, you’re looking at same-day or next-day completion.
A licensed electrician has completed years of apprenticeship training, passed state exams, and maintains active licensing and insurance. A handyman typically doesn’t have electrical-specific training or licensing, and in Texas, they’re legally limited in what electrical work they can do.
Electrical work is dangerous if done wrong. Incorrect wiring causes house fires, shocks, and code violations that show up during home inspections. A handyman might charge less upfront, but if the work isn’t done right, you’ll pay more later to have it fixed—or worse, deal with a safety hazard.
Licensed electricians also pull permits and handle inspections, which handymen usually don’t do. That matters when you sell your home or file an insurance claim. We carry full licensing and insurance, so you’re protected if anything goes wrong. That’s not something you get with unlicensed work, no matter how cheap it seems.
