Every heating system service at Air Tech Pro starts with a thorough diagnostic inspection. Our technicians examine all key components — the heat exchanger, burners, igniter, blower motor, flue, gas lines, and electrical connections — to identify the exact cause of any problem. We believe in diagnosing correctly the first time, which means faster repairs and fewer repeat visits for our customers.

For new installations and replacements, we carefully calculate your home or building’s heating load based on square footage, insulation levels, window placement, and local climate data. This ensures we recommend the right system size and efficiency rating for your specific property — not too big, not too small, and within your budget. We partner with leading HVAC brands to offer a wide range of high-efficiency furnaces, boilers, and heating systems that are built to withstand Chicago winters for years to come.

Once installation or repair work is complete, we run a full operational test covering heat output, airflow, thermostat accuracy, safety controls, and carbon monoxide checks to confirm your system is working safely and efficiently. We also provide you with a complete walkthrough of your new system, explain filter replacement schedules, and give you practical maintenance tips to extend the life of your heating equipment. Air Tech Pro’s work is backed by our satisfaction guarantee — we do not consider the job done until you are completely satisfied.