Knox Heating & Cooling in Wentzville, MO

We are the company you keep!


Schedule Your HVAC Services Today!


Looking for reliable solutions to tackle the Wentzville weather or ensure uninterrupted power supply? Contact Knox Heating & Cooling today! We’re your one-stop destination for all things HVAC and generator-related. Our seasoned experts are committed to delivering top-notch services tailored to meet your specific needs. Whether it’s keeping your home cool during those scorching summers or ensuring your generator is ready for any power outage, we’ve got you covered.

Contact us today to experience unmatched quality and professionalism in Wentzville, MO!


Send us a message to let us know how we’re doing! We welcome your feedback and strive to offer the best quality service and experience. For years, we have provided our clients with:
Uncompromising customer service
The highest quality, dependable parts & equipment
Excellent manufacturer warranties
Our own Guarantee of Workmanship

Get in touch

    Contact info

    At Knox Heating & Cooling, we’re here to help you with all your Heating & Cooling needs. Whether you have a question, need a service appointment, or want to provide feedback, we’d love to hear from you!

    • 636-634-6693
    • Wentzville, MO 63385

    Area’s We Serve:

    St. Louis County

    Ballwin, Missouri
    Black Jack, Missouri
    Breckenridge Hills, Missouri
    Brentwood, Missouri
    Bridgeton, Missouri
    Chesterfield, Missouri
    Creve Coeur, Missouri
    Des Peres, Missouri
    Ellisville, Missouri
    Eureka, Missouri
    Fenton, Missouri
    Frontenac, Missouri
    Glendale, Missouri
    Kirkwood, Missouri
    Ladue, Missouri
    Manchester, Missouri
    Maplewood, Missouri
    Maryland Heights, Missouri
    Overland, Missouri
    Pacific, Missouri
    Richmond Heights, Missouri
    St. Ann, Missouri
    Shrewsbury, Missouri
    Sunset Hills, Missouri
    Town and Country, Missouri
    Webster Groves, Missouri
    Wildwood, Missouri

    Lincoln County

    Troy, Missouri

    Foley, Missouri

    Hawk Point, Missouri

    Moscow Mills, Missouri

    Old Monroe, Missouri

    Silex, Missouri

    Elsberry, Missouri

    Winfield, Missouri

    Warren County

    Foristell, Missouri
    Marthasville, Missouri
    Truesdale, Missouri
    Warrenton, Missouri
    Wright City, Missouri