# State Line Electric > Licensed Master Electrician serving Columbia, TN and Southern Middle Tennessee. State Line Electric LLC is owned by Vincent Dominguez, a licensed and insured master electrician with 7+ years of hands-on experience. Based in Columbia, TN. Call or text (931) 922-3441. Free estimates, with a response within one business day. Hours are Mon–Fri 7am–6pm. Emergency and after-hours service is available. Service area: 60 miles of Columbia, TN. Counties: Maury County, Lewis County, Marshall County, Lawrence County, Wilson County, and Giles County. Cities include Columbia, Spring Hill, Lewisburg, and Pulaski. Service is not currently available in the Nashville metro area or in Alabama. Industrial electrical services exclude fire alarm systems. Ceiling fan installation is listed with residential services. Homepage last updated 2026-10-23. Services offered: - Electrical Repairs & Troubleshooting: We diagnose problems quickly and safely — flickering lights, tripped breakers, dead outlets, or other power issues in your home or business. Includes Outlet & switch repairs, Circuit troubleshooting, Flickering & dead power fixes. - Panel Upgrades & Service Changes: If your panel is outdated or struggling with modern appliances, we provide upgrades built for safety, efficiency, and long-term reliability. Includes Panel replacements, Service upgrades, Code compliance. - Lighting Installation & Upgrades: From indoor fixtures and security lighting to outdoor and landscape lighting, we install solutions that improve safety and appearance. Includes Indoor & outdoor lighting, Security & flood lights, Fixture upgrades. - EV Chargers, Wiring & Installs: Dedicated EV chargers, new circuits, updated wiring, or electrical work for a renovation or addition — delivered code-conscious and built to last. Includes EV charger installation, New circuits & wiring, Remodel & addition wiring. - Commercial Electrical: Repairs, installations, upgrades, and maintenance for businesses, offices, and other commercial properties across Middle Tennessee. Includes Build-outs & new construction, Lighting retrofits, Maintenance & repairs. - Specialty & Conduit Systems: Conduit systems for power and controls (including AT&T projects) and industrial electrical services, excluding fire alarm systems. Includes Conduit for power & controls, AT&T projects, Industrial services. ## Pages - [Home](https://www.statelineelectricllc.com/): Licensed master electrician in Columbia, TN for residential and commercial work. Free estimates. - [Services](https://www.statelineelectricllc.com/services): Repairs, panel upgrades, lighting, EV chargers, commercial electrical, and specialty conduit systems. - [About](https://www.statelineelectricllc.com/about): Vincent Dominguez, owner and licensed master electrician, with 7+ years of experience. - [Service area](https://www.statelineelectricllc.com/service-area): 60-mile radius of Columbia, TN. Does not include the Nashville metro area or Alabama. - [Contact](https://www.statelineelectricllc.com/contact): Call or text (931) 922-3441, or request a free estimate. Mon–Fri 7am–6pm. - [FAQ](https://www.statelineelectricllc.com/faq): Answers about cost, panel upgrades, EV chargers, licensing, commercial work, and timelines. - [Gallery](https://www.statelineelectricllc.com/gallery): Photos of panel installs, commercial projects, EV chargers, and backup power work. - [Resources](https://www.statelineelectricllc.com/resources): Guides on electrical warning signs, winter checks, panel upgrades, breakers, backup power, and EV chargers. ## Guides - [Is Your Home a Fire Hazard? 7 Electrical Warning Signs You Should Never Ignore 🔥⚡](https://www.statelineelectricllc.com/resources/electrical-fire-hazard-warning-signs): October is Fire Prevention Month. Flickering lights, warm outlets, burning smells, and overloaded circuits can all signal hidden electrical hazards. Learn the seven warning signs you should never ignore. - [Is Your Home's Electrical System Ready for Winter? 7 Things to Check This Fall 🍂⚡](https://www.statelineelectricllc.com/resources/home-electrical-system-ready-for-winter-fall-checklist): Cooler weather pushes your home's electrical system harder. Check your panel, outlets, space heaters, GFCIs, outdoor equipment, and holiday lighting this fall to catch problems before winter demand spikes. - [Signs Your Home Needs an Electrical Panel Upgrade](https://www.statelineelectricllc.com/resources/signs-your-home-needs-electrical-panel-upgrade): Flickering lights, frequent breaker trips, or a warm panel can signal that your electrical system is struggling to keep up. Learn the warning signs your home needs an electrical panel upgrade. - [Why Do Circuit Breakers Keep Tripping in Summer?](https://www.statelineelectricllc.com/resources/circuit-breakers-tripping-summer): Heatwaves push Columbia-area electrical panels to their limits. Learn the six most common reasons breakers trip in summer — and when repeated tripping is a warning you can't ignore. - [Backup Power Solutions for Columbia, TN Homes](https://www.statelineelectricllc.com/resources/backup-power-solutions-for-columbia-tn-homes): How standby generators, whole-home battery backup, and hybrid systems keep your home running safely through storm-related outages. - [Can Your Home Handle Modern Electrical Demands?](https://www.statelineelectricllc.com/resources/can-your-home-handle-modern-electrical-demands): Many Columbia-area homes weren't built for today's power needs. Learn the warning signs of an outdated system and how to upgrade safely. - [Installing a Home EV Charger in Columbia, TN](https://www.statelineelectricllc.com/resources/ev-charger-installation): Why more Tennessee drivers are choosing Level 2 home charging for faster overnight charging, smart energy control, and durable performance. ## Optional - [Facebook](https://www.facebook.com/statelineelec): State Line Electric on Facebook