D's Air provides a wide range of Lennox Heating Ventilation Air Conditioning and Duct Cleaning services for residential and commercial properties in Oak Park and all surrounding Suburbs. If you don’t see what you are looking for here, contact us. We will be happy to answer any of your service questions needs.

Our service department treats each maintenance call or emergency service visit as an opportunity to improve comfort while cutting energy costs for our clients. Our Service team and engineering department try to be familiar with each client facility so we can take a proactive approach to energy saving opportunities.

When you need cooling, your company depends on the performance of your air conditioning system. But keeping your air conditioning system in its original peak performance condition year after year demands preventative maintenance and small repairs as well as operational changes that can be made without extensive costs.

Efficient Heating, Cooling, and Ventilation and Air Quality systems are affected by the proper maintenance of your building’s air handling system. We perform routine preventative maintenance and use the latest indoor quality test equipment to alert businesses to possible air quality concerns, before they become serious.

Energy Management Systems are becoming a must for well-run, energy efficient buildings. In addition to the set point and night-setback features which can be handled by a programmable thermostat, an Energy Controls System can provide savings in many other ways including functions such as lighting and water temperatures.

Preventive maintenance Air Duct Cleaning from D's Air & heating, Inc.  Services means peace of mind — delivered! We know that unnecessary equipment repairs can make a mess of the best business plans. Our preventive maintenance program can minimize surprises, lower your company’s energy costs, and extend the life of your equipment. Prevent problems before they occur. Ask about our Preventive Maintenance Agreements.