ST. LOUIS — Two Air Masters HVAC projects — the Gateway Arch in St. Louis and North County Technical High School in Florissant, Missouri — have been named finalists in the Construction Keystone Awards by the Associated General Contractors (AGC) of Missouri. Finalists and winners will be announced at the AGC of Missouri Construction Awards Gala on Nov. 12, 2015.

For the Gateway Arch, Air Masters completed a complicated first — a comfort HVAC and controls upgrade in the national monument’s 630-foot legs, to provide conditioned air for tram passengers on their way to the Arch observation deck. Fifty-year-old pneumatic controls, well past their typical lifespan, were replaced with computerized controls. Working inside a curved structure with 20 separate worksites situated high in the air required special protocol and preparations to keep trams operational, workers safe, and visitors comfortable during construction. The project is a finalist in the Specialty Contractor, Industrial/Infrastructure projects under $5 million category

Air Masters’ HVAC modernization project at North County Technical High School in Florissant, Missouri, is a finalist in the Specialty Contractor, Industrial/Infrastructure projects over $5 million category. Air Masters was the mechanical contractor, designer, and prime contractor for this three-phase, design/build project, which involved a full replacement of the HVAC system. Significant planning was required to complete the project during two compressed summer schedules as well as during the 2014-2015 school year. The new, energy-efficient system has an estimated lifespan of 50 years.

The AGC Construction Keystone Awards honor firms that exhibit excellence in providing solutions to unique obstacles and challenges specific to their project.

Air Masters Corp. is a full-service HVAC, plumbing, piping, building automation, and energy conservation firm with more than 200 professional and trade employees. For more information, visit

Publication date: 7/20/2015

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