From a routine installation to a complex fast-track design/build project, we can provide any type of HVAC service, including new construction, intricate process piping, and tenant fit-up and retrofit.

“Harold Brothers has been a trusted partner for many years on projects both large and small. They have always been extremely responsive, professional, and team oriented which is why they are such a pleasure to work with which is rare to find. I look forward to doing business for many more years to come!”

Michael Fish, President & CEO – Dellbrook I JKS
  • Air Conditioning
  • Air Handlers
  • Boilers
  • Chiller Service
  • Commercial HVAC Service
  • Computer Room AC
  • Direct Digital Control (DDC)
  • Dust Collection and Fume Control
  • Furnace / Heating Systems
  • Geo-Thermal HVAC
  • Make Up Air Units
  • Medical Gas Systems
  • Process Piping (Compressed Air Piping, Steam & Water Piping Systems)
  • Refrigerant Conversion Services
  • Refrigeration Units
  • Rooftop Units
  • Start-up And Commissioning Services
  • Post Construction Warranty Service
  • Ventilation Systems
  • VRF Systems
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