Air Conditioning Systems

As a complete HVAC service company, D & H Refrigeration, INC. specializes in energy efficient solutions to HVAC repair and equipment maintenance to lower total cost of operations for facilities throughout the Chicagoland area. Our team of experienced service technicians work and communicate with building managers and operators to save energy and lower operating costs while creating a comfortable environment year-round.

We consistently strive to stay ahead of the curve by investing in our field technicians training and the technology of our industry. This enables us to offer our clients the most up-to-date solutions, controls and upgrades to their systems. In turn making our clients more profitable and competitive. Ready to work with D & H? Contact us or call 708.308.0002.


  • Load Calculation & System Design
  • Equipment Replacement & Upgrades
  • 24/7/365 Service and Maintenance
  • Preventive Maintenance Programs
  • CFC Refrigerant Conversions
  • Refrigerant Recovery & Storage
  • Leak Detection
  • Make-up air & ventilation
  • Air Handling Systems
  • Chilled Water and DX Cooling
  • Rooftop Packaged Equipment
  • Air & Water Cooled Condensers
  • Centrifugal and Reciprocating Chillers

Industries Served

  • Central Plants
  • Commercial Real Estate
  • Date Centers
  • Education
  • Healthcare
  • Industrial
  • Retail
  • Specialties

Ready to work with us? Call us at 708.308.0002 or send us a contact request.

Brands we work with but not limited to