HVAC/R Service Maintenance Programs:

Your Comfort is Our Business

We are the Chicagoland areas premier commercial Heating, Ventilation, Air Conditioning and Refrigeration (HVAC/R) Mechanical Contractor.

‘Your comfort is our business’┬ámeans┬áproviding exceptional customer service whether it’s emergency HVAC service, a customized maintenance program, equipment replacement or engineering new heating and air conditioning systems.

We partner with our customers to create a comprehensive commercial HVAC service maintenance programs focused on reducing the total operating costs for their equipment and businesses specific needs.

To explore your maintenance options and find out how we may be able to assist you, contact one of our service representatives today to schedule a free consultation.



  • Leadership – 45 PLUS years of HVAC/R Mechanical service
  • In-house and factory-trained HVAC/R service technicians who are committed to providing you with the highest quality professional work and custom maintenance plans
  • MSCA STAR Qualified – After surpassing stringent HVAC/R testing requirements through Local 597, we are proud to be one of the ten best trained and qualified companies in Illinois earning the Mechanical Service Contractors of America (MSCA) STAR designation

GHC Value of Professional Service

  • 24 hour, 7 days a week inclusive coverage by locally-based expert technicians for all of your HVAC/R service needs
  • Customized full service and preventative plans tailored to meet your needs- including labor, mechanical maintenance, replacement parts
  • Preventative maintenance plans allowing you to be in control of your routine maintenance
  • Computerized tracking of equipment repairs and maintenance histories
  • Fully equipped HVAC/R service fleet and communication network
  • Monitoring and recording of refrigerant usage in compliance with federal regulations
  • GPS equipped fleet enabling our service coordinators to dispatch service technicians efficiently to meet your service requirements and respond quickly to emergency calls
  • Lower your businesses HVAC/R costs 10-30% by utilizing the latest technologies
  • Extend the operating life of your mechanical equipment to lighten your budget
  • Reduce costs of expensive HVAC /R system repairs
  • Increase equipment productivity which saves energy, reduces downtime and relieves stress
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