At Leonhardt, we represent the finest products in the commercial HVAC industry, including air distribution, air flow measurement, and energy metering-and we've been doing for over 65 years. It was 1956 when Leonhardt Company established one of the first independent testing, adjusting, and balancing (TAB) companies in the United States. As the industry leader, we continue to provide unparalleled service and innovative solutions to businesses throughout New England.

The complexities of hospital, research lab, and pharmaceutical HVAC systems require the knowledge and experience of trained testing and balancing personnel. In an environment where maintaining a pressure differential between rooms is critical, incorrect balancing can lead to employee safety concerns and product contamination. For ever 50 years, we've specialized in testing, adjusting, and balancing (TAB) of HVAC systems, with a special emphasis on engineering surveys, troubleshooting, and rebalancing of existing systems.

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