FURNACE & AIR CONDITIONING SERVICE, REPAIR & MAINTENANCE CONTRACTOR

Mark Olis HVAC LLC is a full service Heating, Ventilation & Air Conditioning (HVAC) company serving home owners. We stand behind every job to make sure our customers are satisfied with our service. We install, repair, and maintain HVAC systems for new and existing homes and business properties. We work with our customers to install energy efficient systems and products along with customizing their space needs.

Air Conditioner Installation or Repair

Furnace Installation or Repair

Heat Pump Installation

Mini Split Air Conditioner Installation

Thermostat

Mark Olis, the owner, is directly involved in each project. He graduated from Purdue University with a Bachelor of Science degree in Construction Engineering and Management Technology.