Proactive care for Your HVAC System
Maximize Efficiency and Minimize Costs with GHC’s Preventative Maintenance
Ensure Optimal Performance – and Prevent Problems Before They Occur
Preventative maintenance is the key to keeping your HVAC system running smoothly, efficiently, and cost-effectively. Subpar maintenance can accelerate the aging of your equipment, leading to frequent breakdowns and energy-wasting conditions.
With GHC’s preventive maintenance, you can lower the total cost of your heating, cooling and ventilation operations by maximizing your building’s energy efficiency and extending the equipment’s life cycle.
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Benefits of Preventative Maintenance from GHC
GHC provides regular inspections and maintenance to Chicagoland commercial and industrial facility and property managers of buildings at least 10k square feet.
Why Jensen’s
Join the thousands of satisfied customers who trust Jensen’s for reliable service.
Deep Service Expertise
- All of our union-trained technicians undergo continuous education, staying up-to-date on advanced systems like chillers, hydronics, and VRF technology.
- Every technician follows a thorough 10-point process and uses the latest digital diagnostic tools, allowing us to quickly collect data and solve issues faster.
- We successfully completed over 10,000 service calls last year.
- Our core team of union-trained journeymen and service techs has an average tenure of 7.1 years with us.

GHC is a top flight industrial HVAC company. I have been using them for years for all my multiple buildings and multi-family commercial projects.
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