Be efficient. Stay comfortable.


Air Temp Mechanical Heating and Cooling located in Merrillville, Indiana is a HVAC mechanical company. Our professional heating and ventilation company has over 23 years of experience in this industry. Our installation, servicing, and repair services are available for both our commercial and industrial customers.

Air Conditioning

The professional technicians at Air Temp Mechanical Heating and Cooling are committed to solving your HVAC problems, whether you are having issues with your heating, air conditioning, or ventilation.


Our technicians are available 24 hours a day for emergency services. We use modern equipment and strategies that may help our customers save money, and reduce the intake of allergens. You can build a commercial account with us. References are available.