Knox Heating & Cooling in Wentzville, MO

We are the company you keep!

Our Certified HVAC Technicians

Our certified HVAC technicians provide excellent installation and repair services for all HVAC systems.

Heating & Air Conditioning Installations

Knox Heating & Cooling offers complete installation expertise and the finest equipment for every situation. Whether you’re building a new home, adding an addition, finishing a basement, or replacing an older system, we’ll work with you throughout the process to determine which of our high-quality, energy-efficient systems best fits your budget and lifestyle. Starting with a free onsite consultation, our technicians will calculate the capacity of heating or cooling equipment needed to ensure consistent comfort throughout your home. We’ll complete the installation to the highest industry standards, and we don’t consider our work finished until you’re completely satisfied.

Heating & Air Conditioning Repairs

Whether your heating or air conditioning system is sluggish, completely broken, or somewhere in between, the experienced technicians at Knox Heating & Cooling are trained and certified to identify and fix any problem. We’ll listen to your concerns and conduct a thorough diagnostic to catch any issues, even those you may not be aware of. With many parts in stock and the necessary tools for all makes and models, we arrive prepared to get the job done. You’ll appreciate our reasonable prices and the prompt service we provide to our valued customers.

Heating & Cooling Maintenance

At Knox Heating & Cooling, we understand that some repairs are inevitable. However, many malfunctions can be avoided with regular maintenance and seasonal tune-ups. Our annual or seasonal maintenance visits allow our technicians to identify and address repair issues while they’re still small and more affordable to fix. Additionally, regular air conditioning and heating maintenance helps optimize your system’s efficiency, reducing your monthly utility costs. We’ve seen many of our customers save significant money and extend the lifespan of their heating and cooling equipment by consistently using our maintenance services.

Get a Free Quote on HVAC Replacement Today!

Don’t hesitate to get in touch with us for a free quote on our HVAC replacement.

Trusted Brands

Frequently Asked Questions:

It is recommended to have your HVAC system serviced at least once a year to ensure it is working properly and to catch any potential issues before they become major problems.

There are various ways to improve indoor air quality, including regular HVAC maintenance, using air purifiers, and keeping a clean home. Our team can also provide professional air duct cleaning services.

Yes, we offer HVAC installation services for both residential and commercial properties. Our team is highly trained and experienced in installing a variety of HVAC systems to meet your specific needs and budget.

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    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