American Solar Energy Systems, Inc.

American Solar Energy Systems, Inc., based in Jacksonville, Florida, is a board-certified solar contracting firm with nearly four decades of experience since its founding in 1986. Locally owned and owner-operated by President Mark Krenn, the company specializes in the design, installation, service and repair of residential and commercial solar energy systems—including over three thousand completed projects for pool heating, hot water heating (solar or hybrid), and photovoltaic electricity generation.
The firm is fully licensed (Florida Certified Solar Contractor CVC56668), insured ($2 million policy), BBB-accredited with an A+ rating since May 2024, and offers a lifetime transferable water-tight roof warranty on their installations. American Solar emphasizes hands-on expertise tailored to Northeast Florida’s climate needs—helping customers extend their swimming season with efficient pool heaters or reduce utility bills through advanced water heating technologies.
Their approach combines technical proficiency with customer-focused service for both new system installations as well as ongoing maintenance or repairs.