Level 9 Heating and Cooling Logo

Since 1975

Authorized Dealer of Lennox Systems

HVAC Installations • Contact Us Today
Get Special Offers: Text LEVEL9 to 71441

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Level 9 Heating & Cooling Logo

Professional Commercial & Residential HVAC Services

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Congratulations to our Fall Furnace Winner - Beverly Hoest of Washington, MO

Professional Air Conditioning and Heating Services

Air Conditioning Repair St. Louis Air Conditioning Repair St. Louis

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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Proud supporter of Anything for a Friend

Featured Review:

"We called for emergency service at 8 am this morning. By 9 am, Greg had arrived and begun servicing our furnace. He was extremely friendly and knowledgeable, taking time to talk to both my husband and I about the issues with our furnace. He was professional, and courteous with our home. He made us feel comfortable l, as if an old friend had stopped by to help us fix a problem. This was our first experience with Level 9 and I can assure you that because of Greg, you gained a customer for life. We so appreciate having heat this weekend. Thanks, Greg!!"

Furnace Repair - Karis B.

Our Customers Love Us

Quick response and very professional friendly service
Lucas B - Washington, MO 63090
Quick response on a Sunday morning! And technician arrived promptly, diagnosed the problem quickly, and fixed it in minutes. All in all - a great ...
Bill H - Washington, MO 63090
Thanks so much to Teresa and her excellent crew! Great job!
Lee P - Washington, MO 63090

Our Customers Love Us

Excellent job very professional
Orville S - Washington, MO 63090
Very good tune up. Answered all our questions and helped resolve some worries we had.
Bruce B - Washington, MO 63090

Our Customers Love Us

Jim's Heating & Cooling is a great place for all your heating and cooling needs! Great service and friendly staff!
Kelsea H - Wildwood, MO 63040
View All Testimonials

Our Service Area

Service area mapService area map

Our team at Level 9 Heating & Cooling is proud to offer our professional HVAC and commercial HVAC services to several communities across the St. Louis area. We know that for many homeowners home comfort is important and ensuring your HVAC system is running properly is the first step. In order to combat this, and to provide more homeowners with 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

What Makes Us The Best A/C and Heating Company in St. Louis

Air Conditioning Repair St. Louis Air Conditioning Repair St. Louis

Today’s homeowners expect more than consistent heating and cooling from their home comfort systems. With rising energy costs and health concerns, consumers demand equipment that tops efficiency ratings, improves indoor air quality, and stands up under brutal workloads. At Level 9 Heating & Cooling, we match your exact needs to the ideal solutions, partnering the most innovative technology on the market with the highest quality workmanship.

For expert installation, service and repair in the St. Louis area call Level 9 Heating & Cooling at 636-251-6936. You’ll always speak to a live representative who will immediately put our extensive resources to work for you, guaranteeing a swift resolution to any difficulties, complete satisfaction and total comfort. When you call us, we’re available when and where you need us!