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Authorized Lennox Systems Dealer
60 Month - 0% Interest Financing

Indoor Air Quality Services

Our team at Level 9 Heating & Cooling offers professional air quality services to help you keep your home healthy. They have been trained and tested in the field of indoor air quality including theory, application, product knowledge, and identifying the best solutions to address your air quality issues and lifestyle. It means experience you can trust, and the expert attention you deserve.

Enjoy Healthy Air Quality and Home Comfort

Upgrade your home by improving the air quality and comfort. Level 9 can help… with humidifiers that allow you to control and maintain the perfect air moisture, ventilators that bring fresh air into your home, electronic and traditional air purifiers that clean the air before it circulates, and ultraviolet lamps that kills and keeps coils cleaner. We also feature a number of other products for comfortable and healthier indoor living.

Air Filtration

While the modern building process has improved upon insulation and thermal performance in the home, increasing energy savings also means that your home traps air indoors that isn’t always ideal for breathing. We offer a full line or air cleaners, purifiers, and filters to improve your indoor air quality. Having healthy air is a key part of having a healthy home in St. louis.

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Air Filtration Installation


Installing a dehumidifier in your home can help you keep the air in your home healthy and safe to breath. In an overly humid environment mold, mildew, and other allergens can become a problem. Our team can help you keep your home healthy year round by installing a whole home dehumidifier system.

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Dehumidifier Installation


Having an overly dry house can be bad for the health of you and your family. With low moisture content in the air allergens such as dust, dirt, and other small particulates can become airborne causing the air in your home to become unhealthy. Installing a humidifier can help keep the air in your home clean.

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Humidifier Installation

Our Customers Trust Us

All their techs was very professional and extremely knowledgeable of their HVAC systems. I was very impressed. I'd Iike thank them ALL so much. Each of them was instrumental with the installation of the system. And I also had them replace my water heater at the same time. They left nothing undone. ...
Teresa O - Washington, MO 63090
They were prompt. They fixed the problem and not expensive, would definitely use them again
Cheryl G - Washington, MO 63090
Ben came out to give us a bid on a new Air Conditioner and Furnace. He was very respective of our home. He was informative and answered all of our questions. He explained everything about the various options available. We have what we need in order to make an informed decision
Joan D - Washington, MO 63090
Great people Great service.They redid our business and the workmanship was excellent and the units are performing great left no mess. Thanks!
John C - Wildwood, MO 63005
Adam Brittingham is an absolute delight - personable & thoroughly professional. He also gave me several pointers about the operation of my heat pump that I'd never been told in all the years I've owned the system. Definitely a customer-oriented technician!
Barbara W - Washington, MO 63090
Level 9 team did a great job improving our air quality in our home. Kind and professional and appreciate the contact less call during COVID. Great job !!!!
Mary S - Augusta, MO 63332
We offer 24/7 HVAC Service for emergencies in Franklin, St. Charles, St. Louis, and Warren Counties. If you have an emergency contact our experts and we will help.
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All of our HVAC Technicians and Office staff are very friendly. Hop over to our staff page to see some of our team members and to check out your assigned technician.
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Service Area Map

Our Service Area

Our team at Level 9 Heating & Cooling is proud to offer our professional HVAC and commercial HVAC services to home and business owners. We promise to provide a cost-effective solution for repairing or replacing their HVAC units, we cover a wide variety of counties in St. Louis including Franklin, St. Charles, St. Louis, and Warren Counties. Click the button below to check out our service area map and the cities we service.

View Our Full Service Area