Welcome to Ambient Air, your home for heating and cooling services throughout St. Louis and the surrounding areas. We proudly serve our community and bring over 25 years of industry experience to every job, giving you the peace of mind knowing that you are receiving the highest quality service for your HVAC system.
We’re committed to making every visit count—with solutions that work,
comfort that lasts, and service you can trust. Our mission is to deliver effective, lasting solutions with every service call and installation.
💬 About Ambient Air
At Ambient Air, we understand—most folks would rather invest in comfort than unexpected repairs. That’s why we provide upfront pricing before any work begins, whether it’s a repair or a full system replacement. No surprises. Just honest service.
Our customers are the most valuable part of our business, and we treat every home and business with the respect it deserves.
Who We Are
We’re a licensed Mechanical Contractor serving St. Louis City & County, specializing in residential and commercial HVAC service, maintenance, and installation. As a veteran-owned, St. Louis small business, we take pride in delivering quality work at a fair price.
• Licensed, bonded, and insured
• BBB Accredited with an A+ rating
• Committed to safety, responsibility, and reliability
Thank you for considering Ambient Air—we’re here to earn your trust, one visit at a time.
Every home and business has their own unique qualities to them. Therefore, it is unreasonable for us to place an exact amount on a new system. Contact us and we’ll come to your location.
Our service area is within a 10-mile radius of the Carondelet neighborhood.
Get in touch with us at (314) 255-8589 to set up a consultation, or use the contact form on our Contact page. You can see the services we offer by checking out our Services page.
Brands We Recommend and Trust
Mitsubishi
Largely known as one of the world’s biggest automotive manufacturers this Japanese company, Mitsubishi Electric, established in 1921 knows a thing or two about manufacturing great HVAC products. In their over 100 years existence they have grown into one of the largest suppliers of HVAC equipment worldwide. Featuring one of the industry’s best SEER ratings (Seasonal Energy Efficiency Ratio) at an astonishing 4.68 Mitsubishi is a company that constantly innovates. These systems can save you both space and money but, that’s not all,
Mitsubishi Warranty:
RhEem
Brothers Richard and Donald Rheem founded Rheem Manufacturing Company in Emeryville, CA, in 1925. While the company has produced a number of products in its nearly 100 years of operation, Rheem is currently the only manufacturer in the world that produces heating, cooling, water heating, pool & spa heating, and commercial refrigeration products, and it is the largest manufacturer of water heating products in North America. From industry-leading technologies to next-generation energy efficiencies, Rheem has been a pioneer in developing some of the most innovative advancements in heating, cooling, and water heating. With a long list of award-winning solutions, Rheem continues to deliver advanced comfort, savings, and experiences to our customers—just as They’ve done for nearly 100 years.
Rheem Warranty:
VEnstar
Founded in 1992, Venstar Inc. is a leading thermostat and energy management system (EMS) manufacturer, known for providing value to its customers via ease of use and installation, proven cost savings, improved energy efficiency, quality, and reliability. Venstar is one of the largest thermostat suppliers in the world and designs and produces Venstar-branded products, as well as OEM thermostat products for the biggest names in HVAC. Venstar’s Surveyor is a leading energy management system, typically saving small-box retailers 25-35 percent of their energy costs, which translates to tens of millions of dollars in savings each year and dramatic reductions in CO2 emissions. Venstar’s Surveyor currently controls the energy usage of 30,000+ retail locations across the United States, Canada, Puerto Rico, and Mexico. visit: Venstar.com
Venstar Warranty: 1 Year