Mr. Joel E. Contreras Sr. can be an active HVACR Contractor for almost 25 years now the two doing Residential, Commercial and Industrial, in private, public, and Federal Government for the GSA, FBI Projects with Broadway, New York and Brooklyn Federal Courthouse, The big apple. He has affiliations, and membership in earlier times and present such as Society of Mechanical Engineers, Society of automotive Enegineers, Society of Notaries, and much more. My websites: AC installation