NCM specializes in the fabrication of flat sheet metal stock into custom duct systems for prominent commercial and residential HVAC contractors in the Washington DC Metropolitan area. We are not limited to metal; we also carry the Gibson line of HVAC equipment and associated stock items. We are a design build enterprise to include blueprint reading and accurate job costing estimation. This allows NCM to provide from the Furnace in the basement all the way to the grills and registers in the master suite. Providing our customers with everything they need to get the job done.