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Emergency Commercial HVAC Repair 

Your Business Can’t Afford Downtime – Trust GHC Emergency Repair to Keep You Running

When your HVAC system fails, GHC Mechanical is the company you can rely on for immediate repairs.

We know downtime is costly, which is why we offer same day emergency service and respond to every emergency request within 10 minutes. All services are provided by our local expert technicians and dispatched 24/7 via our GPS-tracked service fleet.

By combining vast experience and the latest diagnostic tools, we’ll have your system up and running in no time.

Have an Emergency?

Tell us about your emergency request and we’ll reply within 10 minutes.

Benefits of Emergency HVAC Services from GHC

GHC provides service to Chicagoland commercial and industrial facility and property managers of buildings at least 10k square feet.

  • Same day service

  • 24/7 emergency repair

  • 10-minute response time guarantee

  • Certified local technicians

What Makes GHC the Most Dependable in the Business?

  • Expertise you can trust: The current GHC Union Trained Technicians have worked here for over 14 years on average.
  • MSCA Star Qualified: Exceeding stringent testing requirements through Local 597, we are proud to be among the best trained companies in Illinois.
  • Advanced diagnostic tools: Every GHC tech follows our 14-point inspection process and uses the latest diagnostic tools to quickly solve problems.
  • Proven track record: GHC has been an industry leader for over 50 years, over 10,000 successful service calls last year.
  • An industry-leading number of call-backs (0.06% of all service calls were call-backs).
GHC Technicians Working on Outside HVAC Unit

“GHC Mechanical is a very reliable HVAC company who has been helping support and oversee the heating and air at our Chicago office buildings for the last 10 years.”

Jon H.


7 years

All journeymen have at least 7 years of experience


10,000 service calls

More than 10k successful service calls in 2023


14-point process

Every tech follows our 14- point process

See Why More Customers Trust GHC

Tell us about your emergency request and we’ll reply within 10 minutes.