Indoor Air Quality

Indoor Air Quality

According to the Environmental Protection Agency, Americans spend 90 percent of their time indoors. Unless you have all the windows open in your house all the time, there’s probably not a lot of fresh air coming inside. Indoor air quality has been on the forefront of everyone’s minds lately, and your heating and cooling experts at Welsch are here to help. Indoor air quality doesn’t just improve you and your family’s health, you’ll notice that some of your heating and cooling appliances will work better as well.

If you want to make some healthy changes in your home, improving your indoor air quality is a great place to start. Schedule indoor air quality services with Welsch heating and cooling today. 



Indoor Air Quality Systems from Welsch 

Air Cleaners

Air cleaners attach to your furnace’s air return. They are large air filters that remove dust and particles from the air. They help reduce the impact of allergens such as mold and mildew spores, pet dander, and other airborne irritants that we breathe into our lungs.


Thermostats help regulate the temperature throughout the house. Modern thermostats allow you to set schedules throughout the day which can lower your heating and cooling costs significantly. 


Winter means cool dry air in St. Louis. You have dry air in your home when your skin cracks, your lips chap, and you get a shock from everything you touch. Dry air allows germs and bacteria to stay in the air for longer periods of time, making it easier to move through and irritate your sinuses and nasal passages. A whole house humidifier adds moisture to the air to help relieve these symptoms. 


If your house seems stuffy or smells musty, you might have a ventilation issue. A whole house ventilation system can help dilute indoor air contaminants to keep a consistent supply of fresh air coming in. 

Ductless Mini Splits

Ductless mini splits are in-room air handlers. They’re great for rooms without ductwork, or they’re great when combined with a heat pump. With ductless mini splits, each unit goes in an individual room or zone and is controlled with its own thermostat. When you don’t have ductwork, allergens and germs can’t spread throughout your home easily.

Indoor Air Quality Services Provided by Welsch

Welsch heating and cooling wants all of our customers to breathe easy around us. That’s why we offer professional and courteous indoor air quality services to our St. Louis customers. Some of these services include:

Indoor Air Quality Installation

Once you’ve chosen a service to improve your indoor air quality, our team of professionals can install indoor air quality products and test it to make sure it’s working properly. Many of our units come with warranties and rebates to help you save more down the line. 

Indoor Air Quality Repair

Things go wrong on occasion, and if you notice that your home’s indoor air quality has retracted to its previous state, call us right away. We’ll investigate what’s wrong with your system and have it fixed right away. 

Indoor Air Quality Maintenance

Like the rest of your HVAC system, it needs to be inspected and serviced regularly to ensure optimal performance. When you call us for your yearly furnace or air conditioning inspection, we’ll tune up your indoor air quality components as well. This keeps them working efficiently too, so your indoor air quality remains excellent. 



Why Trust Welsch for Indoor Air Quality Services in St. Louis, MO?

At Welsch, we have over 100 years of experience helping our friends and neighbors in St. Louis with their heating and cooling needs. We have a great reputation with our repeat customers. Our team is full of NATE-certified technicians, so you know your work will be done right the first time. 

Our team has won numerous awards from industry professionals and customers alike, and our reviews agree. Check out our reviews and see why so many customers trust Welsch for all of their air conditioning services.

Contact Welsch for Indoor Air Quality Service

If you want to start breathing easier in your home, now is the perfect time to talk to Welsch Heating and Cooling to learn more about improving indoor air quality in your St. Louis home. Our technicians are standing by to answer any questions you may have and help you find the best solution for your family. Call us to schedule an indoor air quality service appointment today. 



I wanted to inform you that (the city) just completed the inspection of the two systems installed by Welsch.  The inspector noted that the installation was a first rate job.  I, too, would like to thank you and the entire Welsch Team for a very professional installation from start to...

Dick O.

We apologize for not sending this note earlier, we wanted to thank you so much for the wonderful afternoon.  Not only was Denny a great tour guide, we met many players and were able to get great autographs for our kids! We loved the afternoon and will remember that for...

Scott & Betsy N.

I wanted to take a moment to express my gratitude for the outstanding service I received Monday from repairman Chris Sasse. Chris came to my house Monday morning, shortly after reporting a non-functioning thermostat. (We had no heat for 24+ hours.) He replaced the 1+ year old iComfort Wi-Fi thermostat,...

Carla H.

Beginning with the initial contact I felt comfortable with the completeness of information given and the professionalism during bidding and installation. Installers were respectful and willing to answer any questions. This first experience along with the recommendations received from friends assure me this is a company I know I can...


Our a/c fan went on the hottest day of the year. We have used Welsh for years and they were quick to respond and had a new system in the next day. Couldn’t be happier.


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