Elza Heating Co

Elza Heating Co, owned and operated by Keith Elza, is a full installation and service heating, air and ventilation (HVAC) contractor serving Northern Wisconsin.  Experienced in residential, commercial, marine and new construction installation, service and repairs. Offering a full line of quality products including furnaces, air conditioning units, boilers, mini-splits, heat pumps, solar and indoor air quality systems. 

Proud to be your Professional Heating, Cooling and Sheet Metal experts specializing in:

  • Residential and Commercial HVAC Systems
  • Furnace Installation
  • Furnace Service and Repair
  • Furnace Replacement
  • Air Conditioning Installation
  • Air Conditioning Service and Repair
  • Air Conditioning Replacement
  • Boiler Installation
  • Boiler Service and Repair
  • Boiler Replacement
  • Mini Splits
  • Heat Pump Installation, Sevice and Repair
  • Ventilation System Installation
  • Indoor Air Quality
  • Solar Heating and Cooling Systems
  • Custom Sheet Metal Fabrication and Installation