In business for more than 40 years, Langendorf Supply provides customers with exceptional HVAC systems knowledge to meet their project requirements. Representing global HVAC manufacturers, Langendorf’s product lines support the latest energy, sustainability, and comfort standards. Sales and application engineers focus on customers’ needs and industry changes—building codes, energy-efficient technology, human health and safety, and capital and operational costs. Langendorf Supply offers prompt, problem-solving expertise for design and construction professionals. Langendorf Supply products include grilles, registers, diffusers, VAV and fan terminal units, chilled beams, fan coils, blower coils, custom air handlers, fire dampers, fire/smoke dampers, louvers, control dampers, air measuring systems, controls, rooftop package and split systems, VRF systems, spiral duct and fittings and many other related products. Langendorf Supply serves Mid and Eastern Missouri, Central and Southern Illinios, and Indiana.