We have virus-killing air quality tools
Authorized Lennox Systems Dealer
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Authorized Lennox Systems Dealer
60 Month - 0% Interest Financing

HVAC Products

Our Team at Level 9 Heating & Cooling is proud to carry and install residential and commercial HVAC products from a number of top HVAC manufacturers. We carry air conditioning units, furnace units, indoor air quality systems, and climate control systems from manufacturers such as Comfortmaker, Mitsubishi Electric, Hydron, Emerson, Honeywell, Aprilaire, and Air Scrubber Plus. Below you click a product category to take a look at what we have to offer. During any service appointment if you are in need of air conditioner installation or furnace installation our technicians are fully trained to assess what size unit your home or business will need to keep you comfortable year-round.

Air Conditioning Products

Take a look at all of the products we carry to keep your home cool during the hot summer months. We can install air conditioning units from manufacturers such as Comfortmaker and mini-split ductless air conditioning systems for manufacturers such as Mitsubishi Electric. Take a look to see more of what we carry.

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Air Conditioners

Heating & Furnace Products

Staying cozy when it gets cold outside is important during the cold winter months. We can install furnace units from manufacturers such as Comfortmaker and or heat pumps and geothermal solutions. We carry a full array of energy efficient furnaces. Take a look to see more of what we carry.

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New Furnaces

Commercial HVAC Products

Keeping your customers and you employees comfortable year round is an important part of running a business. We can install full sized commercial HVAC solutions for small and large commercial buildings and facilities. We specialize in commercial HVAC installation in St. Louis. Take a look to see more of what we carry.

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Commercial Heating

Indoor Air Quality Products

Having clean and healthy air inside of your home is important. We carry a wide array of air filtration systems, dehumidifiers, and humidifiers. These systems can help keep the air in your home free of allergens and bacteria, allowing you to sleep comfortably knowing your family is breathing clean air. Take a look to see more of what we carry.

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Indoor Air Quality Products

Thermostat Products

Maintaining a comfortable temperature around your home relies on more than just your HVAC System. Your programmable / Wi-Fi thermostat is responsible for reading and maintaining the temperature of the rooms in your home. Installing a new thermostat is a cost effective way to save money on your energy bills. Take a look to see more of what we carry.

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Ductless HVAC Products

Our team stocks a wide variety of ductless and mini-split hvac systems for installation on both residential and commercial spaces. These systems are a great way to control the temperature in an isolated space. We carry units from manufacturers such as Comfortmaker and Mitsubishi electric. To see our selection of ductless and mini-split units click the button below.

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Ductless Systems

Our Customers Trust Us

More than just heating and cooling. Check other money-saving products and also a maintenance plant to keep your heating and cooling in great condition. Great service.
Coletta H - Washington, MO 63090
Courteous, knowledgeable, friendly
Neil H - Washington, MO 63090
We have been using Level 9 for over 18 years for general maintenance, cleaning, repairs and 1 unit replacement. Very responsive, updates on who is coming and when, courteous, safe and honest. Won't find problems that aren't there!
Shirley H - Washington, MO 63090
2nd time we have used this company for service on our home HVAC. Jim's just saved us from another company claiming our system needed immediate replacement by doing a thorough cleaning & checking instead. If you need Trusted Service on your HVAC call Jim's!! This is truly a 5 Star rated company.
Mark M - Labadie, MO 63055
Derrick was very polite and knowledgeable, arrived on time, wore mask and booties, Checked all vents for airflow, answered all my questions, signed me up for a service contract. Completely satisfied.
Carolyn M - Washington, MO 63090
Gerry D. - 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.

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