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

Our Promise
Is Our Bond.

We promise we will deliver the best experience you've ever had with a HVAC service company. When we make a promise, we keep it. No exceptions.

We Repair

We promise we will service any home or office HVAC system, no matter how old, cranky or worn-out it may be.

We promise to only do repairs that make financial sense.

We promise to only make repairs you approve.

We Replace

We promise the best value replacement when it doesn't make sense to repair.

We are proud to partner with Lennox. No one makes better HVAC systems than Lennox. They keep their promises too.

We Respond

We promise you will always speak to a real person when you call.

We answer our phones 24 hours a day, 7 days a week, 365 days a year.

When you have an emergency, we promise to get you the help you need as fast as possible.

We promise the quality of our work will please you. If not, we promise we will make it right.

We Respect

We promise we will treat your home, your health, your pets, your loved ones and your property as if they were our own.

We require the best from ourselves. That's why we deliver the best to our customers. (Check our reviews!).

We Refresh

We promise we will tune-up your system twice a year. No matter who made it. No matter who you bought it from. No matter who installed it. Learn about our Comfort Club.

Lennox Product Line

Our team offers professional air conditioner and furnace replacement services. We trust in the Lennox product line and recommend it for any homeowner looking to upgrade.
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Authorized Lennox Systems Dealer
Lennox logo

Our team offers professional air conditioner and furnace replacement services. We trust in the Lennox product line and recommend it for any homeowner looking to upgrade.
Learn More

HVAC Service Technician

Our team offers professional air conditioner and furnace replacement services. We trust in the Lennox product line and recommend it for any homeowner looking to upgrade.
Learn More

Stay Comfy
Year Round

Professional Air Conditioning And Heating Services


Our team at Level 9 Heating & Cooling offers professional heating and air conditioning services to both home and business owners in the greater St. Louis metro area. Whether it's maintenance, repair, or installation, we're available to assist you right when you need it. Our team is committed to total customer satisfaction and will follow up after we finish to ensure a job well done.

Through the highest quality service and products, Level 9 Heating & keeps your home comfortable, no matter how extreme the St. Louis area weather. Our licensed technicians specialize in the installation, maintenance, and repair of heating and cooling systems, servicing all makes and models, offering free in-home estimates, and 24-hour emergency service.

We Support

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Featured Review

Our Customers Trust Us

The service and repair were completed quickly. Before I knew it the repair tech was in the front office to collect a check for the completed service. Maybe next time the tech could let us know when he arrived and what was wrong with the unit prior to presenting the invoice. I guess a little more ...
Bud P - Washington, MO 63090
Good customer service. Wore booties to protect my carpet from the mud & snow. Very nice. Honest about me NOT needing a new furnace when another told me it wouldn't last. Will sign up for the maintenance package. Seems like a good deal.
Robin R - Washington, MO 63090
These guys were great! They are very skilled at their profession. They came in and got right to work. They were clean, respectful, courteous, and easy to talk to. They did their job to perfection. They made sure everything was right before they left and cleaned up on their way out. I will be using ...
Tony M - Washington, MO 63090
You guys came out and had me up and running in no time.
Marty R - Washington, MO 63090
Knowledgeable, informative, and very prompt and courteous. I will be using Level 9 from here on. I highly recommend using this company for all you HVAC needs.
MT - Washington, MO 63090
Adam is super and explains everything he did and any instructions going forward
Linda K - 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