LLK Greenhouse Solutions is a national greenhouse solution provider that has serviced the greenhouse and indoor growing indus ... try for 90+ years. Based in Cleveland Ohio, LLK offers the following services across multiple industries including commercial, institutional, cannabis, and research: • Greenhouse Design: Comprehensive design of greenhouse structures, equipment and environmental control systems focused on creating the desired environment. • Greenhouse Supply: Collaboration with all major greenhouse manufacturers to offer greenhouse structures and equipment (e.g., glazing, blackout systems, shade curtains, heaters, lighting, environmental controls, benches, etc.) to meet the customers desired results. • Greenhouse Construction: National self-performed new construction, renovation, maintenance, and emergency repair services supporting all major greenhouse manufacturers. read more