Level 9 Heating and Cooling Logo

Since 1975

Authorized Dealer of Lennox Systems

HVAC Installations • Contact Us Today
636-251-6936
Get Special Offers: Text LEVEL9 to 71441

Listen and Learn on the Radio

Learn More
Level 9 Heating & Cooling Logo

Professional Commercial & Residential HVAC Services

Get Special Offers:
Text LEVEL9 to
71441

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

Franklin County United Way Logo
AFAF Foundation><a href=

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

Very good tune up. Answered all our questions and helped resolve some worries we had.
Bruce B - Washington, MO 63090
Great company and excellent customer service! Ben Ketcherside was prompt, thorough and got my air conditioner up and running quickly. I will use ...
Tina D - Washington, MO 63090
Your technician, Chris Hinson, phoned shortly in advance of arrival, arrived as scheduled, was proficient in his job performance, executed service ...
Major C - Manchester, MO 63011

Our Customers Love Us

This is the first time since they changed to Level; however, the service was as great as before under the old name. Have used them for many years and have always been satisfied.
Bill A - Washington, MO 63090
OUTSTANDING PROFESSIONALISM from all of the team at Jims Heating and Cooling. I could not be more satisfied with the entire process starting from the quote to installation.
Kevin B - Wildwood, MO 63005

Our Customers Love Us

Great to know you have my back!
Beverly P - Washington, MO 63090
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!

logo-splash