Kostos Electric is a highly regarded electrical contractor serving the Chicago, Illinois metro area with a wide range of residential and commercial electrical services. Known for quality craftsmanship and reliable scheduling, they handle everything from panel upgrades and outlet installations to full rewiring projects. With 138 five-star reviews, Kostos Electric has built a strong reputation across Chicago neighborhoods for professional, code-compliant work. Their licensed electricians bring expertise to both older Chicago-style buildings and modern construction.
Q: Do older Chicago homes often need electrical panel upgrades? A: Yes, many Chicago homes built before the 1980s still have outdated 60- or 100-amp panels that may not safely handle today's electrical loads. Upgrading to a 200-amp panel is a common and important improvement for safety and capacity.
Most electricians charge between $50-$130 per hour depending on the job complexity and your location. Emergency calls and after-hours work typically cost 1.5x-2x the standard rate.
Yes, most electrical work beyond simple fixture replacements requires a permit. Your electrician should pull the permit and schedule inspections as part of the job.
Signs include frequently tripping breakers, flickering lights, burning smells near outlets, a panel over 25 years old, or if you are adding major appliances like EV chargers or hot tubs.
Licensed electricians have passed state exams, carry insurance, and pull permits. Unlicensed work can void your insurance, fail inspections, and create fire hazards.
A full house rewire typically takes 3-7 days depending on the size of the home, accessibility of wiring, and whether walls need to be opened.
Minor tasks like replacing light switches or outlets are generally allowed for homeowners, but anything involving the panel, new circuits, or 240V should be done by a licensed electrician.
Common causes include overloaded circuits, short circuits, ground faults, outdated wiring, or a faulty breaker. If it happens frequently, have an electrician diagnose the issue.
Homes should have an electrical inspection every 3-5 years, or whenever you notice issues like flickering lights, warm outlets, or burning smells.
GFCI outlets protect against electrical shock by cutting power when they detect ground faults. They are required in bathrooms, kitchens, garages, outdoors, and near water sources.
Whole-house generators typically cost $5,000-$15,000 installed, depending on size (7kW-22kW), fuel type, and the complexity of the transfer switch installation.
4528 N Seeley Ave, Chicago, IL 60625, USA, Chicago, IL
Click the button above or call directly. Most businesses offer free on-site estimates with no obligation.
All businesses on operator.fyi are verified local businesses. Ask for license number and proof of insurance before work begins.
Each listing shows verified Google reviews, years in business, and license information where available.
Kostos Electric serves Chicago, IL and surrounding areas.
Browse other electrical businesses in Chicago, IL.