SIGMA Engineering Group Inc

United States Postal Service:


  • Cleveland  P&DC  Transformer Replacement Project : 2500/3000 KVA transformer replacement and substation Retrofit
  • Cleveland P& DC Emergency Power Restoration Project:    Restoration of substations after troubleshoot for 10 MegaWatt Facility restoration
  • City Gate P&DC AMP Project
  • City Gate P&DC  Assessment
  • City Gate HVAC System Upgrade
  • Twin Rivers Main Post Office HVAC System Upgrade
  • Twin Rivers Main Post Office Electrical Upgrade 
  • Grand Rapids MPA Emergency Generator Connection Program
  • Cleveland Main Post Office Fire Protection Assessment
  • Rocky River Retail Facility Electrical Assessment
  • Charleston P&DC Emergency Generator Connection Program
  • Grand Rapids P3 Annex Emergency Generator Connection Program
  •  Metro Michigan P&DC EGCP Assessment
  • Cleveland Main Post Office Fire Protection System Upgrade
  • Rocky River Retail Facility Electrical System Upgrade
  • LaGrange Power Quality Study and Upgrade