Harster Heating & Air Conditioning

Contact Us


    Residential Air Conditioning Repair, Maintenance & Installation

    Residential Air Conditioning Repair, Maintenance & Installation

    Air Conditioning

    We’re not doctors, we just play them on your AC unit.

    Pardon the pun, but St. Louis air conditioning is a breeze for our team at Harster HVAC. As one of the most respected commercial and residential AC companies in St. Louis, we’ve worked on thousands of homes in and around the area. From air conditioning repair in St. Louis to AC installation in Arnold and maintenance in Crestwood, our team does it all. Located in the southwest of the city, our team provides all manner of heating and air conditioning service to the greater St. Louis area. With exceptional customer service and the best repair technicians in the business, high-quality help is only a phone call away. Call us today at 314-631-5300 for assistance with any AC issues you may have.

    Common Reasons for Air Conditioning Repair in St. Louis, MO

    It can be difficult to pinpoint exactly when your AC unit needs professional help. So we’ve put together a short list of red flags to watch out for. If you notice any of these issues with your air conditioning system, give us a call so we can get you up and running again.

    No Cool Air Coming from the Vents

    When your AC unit stops pushing out cool air, it’s a pretty obvious sign that it’s time to schedule a service call. And if your AC is blowing hot air, that’s even worse. There are a variety of issues that can cause this kind of problem, most of which require professional attention. But sometimes it’s as simple as a dirty air filter. So if your AC isn’t keeping you cool, start by cleaning or replacing your filter. If that doesn’t solve the problem, call our team so we can diagnose the issue and repair your unit.

    Weakened Air Flow

    If air is coming from your system at a slow or unpredictable rate, that’s another red flag. You may just need a new air filter, but it’s not always that simple. Calling our team will give us a chance to see your system in person to get to the root of the problem.

    Pungent Odors

    If your air conditioning system starts to stink, you may have a serious problem. Musty smells can be a sign of mold or mildew. Burning and metallic smells might be caused by melting wiring. If you notice new smells coming from AC, call us right away so we can solve the problem before it gets any worse.

    Moisture Issues

    Moisture-related issues such as condensation can take a toll on your HVAC system. Get in touch with us so we can learn more about your refrigerant-related issues.

    Air Conditioning Repair in Columbia, IL

    With such extreme temperatures during the summer, you need an AC unit that can keep you comfortable in any weather. Harster Heating & Air can outfit your home with a new AC or return your exiting unit to its former glory. Your comfort is our business and we’ll work tirelessly to ensure your satisfaction.

    Here are some of the benefits that you can expect when working with our team:

    • Timely repairs: Nothing is more important to us than the comfort and wellbeing of your family. We will do everything we can to ensure your repairs are completed as quickly and efficiently as possible. Our mission is to get you back to your regular routine as soon as possible.
    • Experienced technicians: Any HVAC company’s services are only as good as the technicians who perform each task. We pride ourselves on staffing only the most skilled HVAC technicians in the area. They have the training and experience to solve any HVAC problem. Plus, they understand how vital it is to be respectful of your time as well as your home.
    • Family-owned and operated: We have over 60 years of experience in the HVAC industry here in St. Louis. Our family business works with top manufacturers so that we can offer competitive prices on the best heating and cooling equipment you can buy. Plus, we offer the unbeatable service of a small business.

    To learn more about our air conditioning services in St Louis, reach out to us today at 314-631-5300.


    For home or business, heating and cooling and installation.

    Call Harster for a free estimate.


    Send us an email!

      Contact Us

      9900 Gravois Road

      St. Louis, MO 63123

      Sign Up For Our Newsletter!

      Get exclusive offers and energy saving tips.

      We respect your privacy. Your email address will NOT be shared or sold.