K. O. Electric, Heating & Air Inc

K. O. Electric, Heating & Air Inc holds a 4.7-star rating across 52 verified reviews, placing them among the most recommended electrical contractors in the Callahan area. This family-influenced business operates as a licensed and insured electrical and HVAC contractor serving residential, commercial, and industrial clients throughout the greater Jacksonville region, including surrounding communities like Callahan, Jacksonville, and nearby neighborhoods. Their service menu spans full electrical system work, from panel upgrades and wiring replacements to new construction rough-ins and tenant build-outs, complemented by HVAC installation, routine maintenance, and duct cleaning. The company maintains standard weekday hours Monday through Friday from 8 AM to 5 PM and offers 24/7 emergency response for urgent situations requiring same-day dispatch.

What distinguishes K. O. Electric from competing contractors in Northeast Florida is their dual-trade expertise under one unified team, eliminating the need for homeowners to coordinate separate electrical and HVAC calls. Their website specifically highlights aluminum wire remediation services, addressing a critical safety concern in Florida homes built during the 1970s and 1980s, where outdated connections pose fire risks. They also handle insurance-required panel replacements for brands no longer UL-approved, including FPE, Sylvania, and Zinsco panels that many insurers now flag. The company offers generator installation and whole-house surge protection, providing layered defense against Florida's frequent storm activity and power grid fluctuations.

Customer reviews consistently praise specific technicians who arrive on time, explain repair options clearly, and clean up work areas after completing jobs. Reviewer Renee W highlighted technician Billy for fixing an AC system with thorough explanations and genuine conversation. Another reviewer described Brandon arriving immediately knowing the solution, completing the repair in minutes while remaining informative. Technician Brian earned recognition for checking all household outlets, identifying a needed repair, and leaving the workspace spotless. The company owner, identified as Ken Overstreet in reviews, personally follows up with clients after project completion, including next-day phone calls to confirm satisfaction with completed work.