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Serving the Chicago NW Suburbs

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Dirty, Stuffy or Dry Air?

Indoor Air Quality
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Breathe Easy

Our team at Leith Heating & Cooling can provide you with excellent Indoor Air Quality through ventilation, humidification and air cleaners. At Leith we can make sure your indoor air quality is comfortable through all the seasons, no matter what the weather is outside.

Prevent Stale, Polluted Air With

Proper Ventilation

Sufficient ventilation is necessary to keep indoor air quality at its best. People spend much more time indoors and ventilation aids in the removal of stale, polluted air and brings in fresh air from the outdoors.

Let Us Help You

Clean The Air In Your Home

Home air cleaners remove dust, mold spores, and bacteria and more so that your family doesn’t have to suffer from allergen airborne pollutants. Electronic air cleaners attaches easily to your heating and cooling system. Some require filter changes and come require cleaning. Call us at 847.851.8698 to help you decide what is right for you. Leith Heating & Cooling also installs the Air Scrubber to clean, protect, deodorize and purify your home which can be used in addition to an air cleaner to maximize air quality improvement.

Control The Temperature

With a Thermostat

Thermostats are one of the most important components in your home comfort and one of the smallest. At Leith we make sure your thermostat is professionally installed and maintained to keep peak performance of your system. A improperly maintained and installed thermostat can throw off your home comfort needs and shut down your Air Conditioner or Furnace completely. Choosing a thermostat is your personal preference. Do you want a wi-fi thermostat that can allow for remote control of your HVAC system through your phone or device? We can professionally install that for you. We offer wi-fi & smart thermostats, and programmable or non-programmable thermostats for installation and replacement. Whether you are looking to upgrade your old thermostat or have questions about your current thermostat, give Leith a call- we are here to help.


No matter what day or what time you have a heating and cooling need, Leith Heating and Cooling, Inc. will be there. For our Energy Savings Agreement Customers, this also means NO OVERTIME CHARGES on nights or weekends. You will only be charged the regular business hours rate.

Save Money on Maintenance

If you have a Residential Energy Savings Agreement with us, you will save 17% over regular maintenance costs with Leith Heating and Cooling. The Agreement gives you a discounted price AND we call you to schedule. That sounds like a win-win!


The Air In Your Home

If you get shocked in the winters or have dry skin, you may have low humidity in your home. If you suffer from allergies or asthma, a humidifier will help you breathe easier. A humidifier installed by Leith Heating and Cooling will help you save money in the winter as well. For every degree that you can set your thermostat lower, you can save about 3% in energy costs. So a 3% set back can save up to 9% in energy consumption. Moisture in the air actually contains large amounts of heat. That additional heat will allow you to keep your thermostat lower, save you money and you will feel just as comfortable.