D & T Heating and CoolingInstallation, repair and maintenance of all furnaces, air conditioners, rooftop units, generators, air quality equipment and more!


D & T Heating and Cooling is family owned, with over 35 years of experience in the heating and cooling business. Our company is dedicated to offering you quality products, expert repairs and maintenance, and superior, friendly customer service. Whether you need a new furnace or air conditioner installed or service or maintenance on an existing unit, you can trust us to complete the work in a timely manner that will exceed your expectations. Our technicians are highly trained, fully licensed and insured. Rest assured, when you choose D & T Heating and Cooling, the work will be done right, the first time! Call us today for a free quote: (815) 485-7400 or (708) 388-4352.

Why Choose D & T Heating and Cooling:

  • Professional Service on all Makes and Models
  • Experienced Technicians
  • Quality Products
  • Fair, Upfront Pricing
  • Free Estimates on New Systems
  • Money-Saving Maintenance Plans
  • Residential & Commercial Work
  • 100% Satisfaction Guarantee

We service all brands, makes and models!

At D & T Heating and Cooling we understand that you want to keep your family comfortable without breaking the bank. This is why you will appreciate the fact that D & T Heating and Cooling can take care of all heating and cooling needs:

  • Furnaces – Replacement, Repair, Maintenance
  • Air Conditioners – Replacement, Repair, Maintenance
  • Generators
  • Rooftop Package Units
  • Air Quality Units
  • Boiler Systems
  • Ductless Split Systems
  • Electronic Air Filters
  • Humidifiers
  • Programmable Thermostats
  • And More

100% Customer Satisfaction Guarantee


At D & T Heating and Cooling, our primary goal is 100% customer satisfaction. A happy customer will be a returning customer and one who will recommend us to friends and family. We strive to provide timely, complete and friendly service to all of our customers. If you are unhappy with the HVAC services we provide, simply call us and we promise to make it right. Call (815) 485-7400 or (708) 388-4352 for the best HVAC service in the southern suburbs!

Contact D & T Heating and Cooling today to find out how we can help you stay comfortable and save you money!

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