Mokena, IL

Doornbos Heating and Air Conditioning is proud to provide the home and business owners of Mokena with solutions to all of their HVAC needs.

Air Conditioning and Cooling

The experts at Doornbos Heating and Air Conditioning install and service all types of air conditioning systems in Mokena, IL.

Whether you are looking to purchase your first air conditioning system or upgrade your current air conditioner to a more efficient unit that can save money on energy bills, we can help you determine what’s right for your needs and budget. If you are happy with your current system, be sure to keep it running at optimal performance with regular air conditioner maintenance. It’s easy to forget your air conditioner needs attention, until it’s too late. Regular air conditioning maintenance prolongs the life of your air conditioning system, saving you money by keeping your energy costs low and repair costs to a minimum.

Do you have a new air conditioner? Even new air conditioners benefit from regular maintenance, which keeps them running efficiently and saves you money. Is your air conditioner not running as well as it should? Contact Doornbos Heating and Air Conditioning. We are fully equipped to fix and service any air conditioner problems in Mokena, IL.

Contact us today at 708-423-9580 or request air conditioning service online to schedule a free in-home estimate or to have your air conditioner repaired.

Learn more about air conditioning.

Furnaces and Heating

Doornbos Heating and Air Conditioning technicians are experienced with heating and furnace systems in Mokena, IL.

Are you looking to purchase a new furnace or upgrade your current heating system to run more efficiently? We can determine which furnace is right for your home. This is very important, as a furnace that is too small or too large won’t operate at an efficient level, placing extra strain on the unit and costing you money.

When was the last time you had your furnace checked? The most likely answers are “never” or “I don't remember.” Furnace maintenance is easy to forget, until you discover your furnace has stopped working properly and your home or business isn’t as comfortable as it should be. Contact Doornbos Heating and Air Conditioning and request an appointment to have us check and service your furnace.

Do you have a new furnace? Even new furnaces benefit from regular maintenance, which keeps them running efficiently and saves you money. Has your furnace stopped working properly? Doornbos Heating and Air Conditioning is equipped to take care of any furnace service repair you need in Mokena, IL. Contact us today at 708-423-9580 or request furnace service online to schedule a free in-home estimate or to have your furnace repaired.

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Water Heaters

Doornbos Heating and Air Conditioning is happy to offer our Mokena, IL, customers two options when it comes to water heaters.

Many people are familiar with the traditional water heater. It works by storing water in a tank and keeping it heated to a preset temperature.

A tankless water heater is a new idea to many people. How does it work? As the name implies, there is no tank to store water. Instead, water is heated on an as-needed basis. A couple of the key benefits of a tankless water heater are that you are not heating water until it’s needed and you won’t run out of hot water.

Let the water heater professionals at Doornbos Heating and Air Conditioning help you determine which type of water heater is best for your situation.

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Indoor Air Quality

Between work and home life, the average person spends about 90 percent of their time indoors. Indoor air can be two to five times more polluted than outside air. In fact, the US Environmental Protection Agency (EPA) ranked indoor air quality (IAQ) as a top five environmental danger.

A well-insulated home can help with your energy bills by keeping a constant temperature, but that also leads to the same air being recycled through your home each time you run your air conditioner or furnace. Be sure you have proper filtration in place to prevent allergens and bacteria from circulating through your air.

Doornbos Heating and Air Conditioning can help you breathe easy. Call us today at 708-423-9580, and we can put together a plan for your home.

Learn more about indoor air quality.


According to the US Department of Energy’s ENERGY STAR® program, leaky ducts in attics or crawl spaces can account for 20 percent or more of a home’s heating and cooling energy losses. This makes it difficult to keep your house comfortable and can result in higher utility bills. Some signs you may have leaky ducts include:

  • High summer and winter utility bills
  • Rooms difficult to heat and cool
  • Stuffy rooms that never seem to feel comfortable
  • Ducts located in an attic, crawl space, or garage
  • Tangled or kinked flexible ducts in your system

Learn more about how you can detect, prevent, and fix air duct issues with the help of our professionals at Doornbos Heating and Air Conditioning. Find out more about duct testing, duct insulation, and duct cleaning, as well as how they relate to and impact indoor air quality.

Contact us at 708-423-9580 or request air duct service online today.

Learn more about ductwork.

Humidifiers and Dehumidifiers

The comfort of your home not only depends on the air temperature but also the amount of moisture in the air.

Cold weather typically means dry, uncomfortable air. Dry air can cause respiratory problems as well as damage wood furniture. Whole-house humidifiers emit water vapor to increase the humidity in your home.

On the other hand, hot weather can mean thick, humid air. This can lead to condensation on your windows, mold spots on walls or ceilings, and blistering paint or peeling wallpaper, just to list a few issues. A whole-house dehumidifier removes excess moisture from the air in your home.

Whole-house humidifiers can improve your indoor air quality, as well as positively impact the overall health of your family and health of your home. Controlling the humidity in your home will help protect not only your respiratory system but also your wood floors, furniture, and artwork.

Let our professionals at Doornbos Heating and Air Conditioning help you decide what’s best for your home. Call us at 708-423-9580 or request service online today.

Learn more about whole-house humidifiers and whole-house dehumidifiers.

Mokena, IL zip codes include .

Need Service in Mokena, IL?

Contact the experts at Doornbos Heating and Air Conditioning.

Call us at 708-423-9580!

“Can’t say enough how grateful I am to this company. They went above and beyond to keep my heat running when it was subzero outside. Showed up on a Sunday night in frigid temps to help. Replaced my tired furnace 48 hours later. Super kind and reasonable. Customer for life.”

– Megan H.

- Megan H.

“Best team for installation. Work fast but with safety and cleanliness is n mind. Great to communicate with and a lot of help to understand system. Tim and Jeremiah we truly appreciate kindness and work you performed. Thanks again”

– David V.

- David V.

“Anthony P. was excellent during the whole process. We ran into several obstacles during the duct work install and Anthony with the install team worked through it to resolve the issues. We upgraded our duct work size and added return ducts. Also we did the cleaning and Aeroseal. We were happy with the end result.”

– John P.

- John P.

“Tim and Jeremiah were so professional and did a fantastic job installing my new AC and furnace. The company is great to work with- very kind, speedy and efficient.”

– Eda G.

- Eda G.

“I am writing this review in regards to the service I received from Dornbos Heating & Air Conditioning .I'm a skeptical person not easily impressed however I was pleasantly surprised at level of quality service we received regarding the installation of a new AC unit in my 30 year old home. Their attention to details was quit impressive and there caring nature was refreshing in this indifferent society we live in today. Jakub and Hunter were great installers !”

– Brian B.

- Brian B.

“Doornbos has installed my furnace and air conditioning units and maintained them for 46 years. Cheerful and friendly Joyce calls to set up the spring and fall maintenance calls and lets me know when the serviceman is on his way. The service men are professional and explain what they have done. I do vote Doornbos for Best Heating and Cooling of Southland 2023!”

– Judith H.

- Judith H.