AirFix Case Studies

Documented heating and cooling projects

See how we evaluate real HVAC problems, explain the options, and complete work in Chicago and nearby suburbs.

Commercial HVAC case study

How a $700 Commercial HVAC Repair Avoided a Quoted $24,000 Replacement

See how AirFix diagnosed restricted airflow in a Carrier rooftop HVAC unit and restored cooling at a Des Plaines restaurant without replacing the equipment.

Des Plaines, IL

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Commercial HVAC case study · July 2026

Restaurant Kitchen Cooling Upgrade in Harwood Heights, IL

See how AirFix installed a 12,000 BTU Fujitsu mini-split at Shawarma #1 in Harwood Heights to provide supplemental cooling for a hot commercial kitchen.

Harwood Heights, IL

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Commercial HVAC case study · September 2025

Commercial Rooftop HVAC Repair at Fit and Fight Gym in Niles, IL

See how AirFix diagnosed high-pressure shutdowns and restored cooling on three Carrier rooftop HVAC units at Fit and Fight Gym in Niles.

Niles, IL

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