Andrew & Andreas Guenther | Advanced ESI

When Andrew Guenther began installing security systems in luxury homes as a teenager, the idea of a fully integrated smart home was pure fantasy. Yet four decades later, Andrew’s company, Advanced ESI, is the go-to-source for state-of-the-art electronics systems for homes and businesses. Its success even led him to launch a sister company, SkyTheater Design Group, that upgrades in-flight entertainment systems for clients like Paul Allen, Jerry Yang, and Donald Trump. 

The goal at Advanced ESI is to deliver aesthetically pleasing systems that are easy for clients to operate from anywhere on their mobile devices. From home theaters and media rooms to fully integrated lighting, mechanized window treatments, heating/cooling, audio/video, and security systems, they do it all. But Andrew always prefers to start with lighting. “Lighting showcases everything, and most homes simply aren’t properly lit,” he explains. “Once you see a lighting system that’s well done, you can’t believe you ever had it another way.”

Andrew and his son, Andreas—who’s been working at Advanced ESI since he was 14 and now serves as a partner and operations manager—understand that quality, performance, and service are at the heart of their success. “We care about getting things right,” Andrew says. “We get calls daily from people who hired our competitors and now need us to finish the job for them, or to take over and service it. People know we’re there for them before, during, and after the sale. We want people to feel heard and are comfortable that they understand everything about their systems.”

When Andrew dreamed up the idea for his company 43 years ago, he had to design and build things manufacturers didn’t make. That same visionary sense informs all he does today which is why he’s able to transform clients’ wish lists into wow-worthy, real-world outcomes.

4915 S Tamiami Tr, Sarasota, FL 34231

941.554.5000 • aguenther@advanced-esi.net • advanced-esi.net