We have virus-killing air quality tools
Authorized Lennox Systems Dealer
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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

Rob did an amazing job, he is very knowledgeable. We have been living here for 15 years and didn’t know things about our unit until he thoroughly explained it . Very friendly and efficient, will definitely be using this service from now on .
Amod Paranjpe - Augusta, MO 63332
Very personable young man. Took care of our problem immediately. Great experience.
Barbara B - Washington, MO 63090
This company is top notch! Tim checked our ancient Goodman AC unit and declared it good to go, no repairs or refrigerant needed. Funny how every other tech in the past 20 years told us the unit was on its last leg. Nice to have a good knowledgeable and honest tech for a change. Their customer ...
Robin Seithel - Union, MO 63084
Have purchased 2 furnaces and 3 AC over the last 20 years from Jack Dames. Service has always been fast and customer service is great. My AC went out Sun night. I called first thing Monday morning and they were here in 2 hours. Highly recommend!
Pat E - Washington, MO 63090
This is just a quick note to let you know how happy I am with the service from your employees. You’ve been doing routine checks on heating and AC at my house for years, and recently put in a whole new system. But just last week, one night before a 10-day vacation, the air conditioner when out. ...
David R - Town And Country, MO 63017
Level 9 is the best HVAC company I have ever dealt with. On time, friendly and professional. They explain everything they are doing and give you all the options up front. If you want to deal with the best call Level 9.
Ryan F - Washington, MO 63090
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