Greater Niagara Mechanical was founded in 2007 by Rodney Siegmann, Christopher Sembert, and Samuel Prezioso with an initial business plan focused around providing high-end HVAC Service for the Western New York region. Since then we have successfully expanded our capabilities to include Mechanical Construction, Design/Build Solutions, and Energy Management Solutions while maintaining our standard of high-end, high quality results. In order to maintain the highest standards of quality work and craftsmanship we have complied a staff that includes a group of the best HVAC technicians and construction personnel the WNY region has to offer.