24/7 Emergency Service

HVAC emergencies happen when you least expect them. Contact the professionals at A+ Derr to take care of your issue. We have the necessary skills and tools to fix your system so you can safely use it once again. Call our team at 833-232-4328 to get emergency HVAC services in Louisville, KY, Evansville, IN, or the surrounding areas.

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Indoor Air Quality Services in Kentuckiana

If your northern Kentucky or southern Indiana home has poor indoor air quality, you may struggle with discomfort and genuine health problems, including eye or nose irritation, respiratory problems, dry skin, and more.

At A+ Derr Heating & Cooling, our highly skilled team has the training and top-quality products to improve indoor air quality, leaving you with fresher, healthier air.

Contact us at 833-232-4328 today to learn more or schedule IAQ services in Evansville, Louisville, and the surrounding areas.

Our Indoor Air Quality Services

The A+ Derr team offers various indoor air quality services to accommodate any family’s needs. We proudly install and service:

  • Air purifiers: These remove odorous and harmful gases such as cooking odors, bacteria, and viruses from the air, so you’re left with healthier, fresher air year-round.
  • High Efficiency Air Cleaners: Air scrubbers remove dirt, dander, pollen, bacteria, and more from your air while purifying and disinfecting, leaving you with distinctly cleaner, healthier air free of harmful pollutants.
  • Humidifiers: Humidifiers help maintain a healthy humidity level, preventing problems such as dry skin, nose and eye irritation, and higher chances of getting sick.
  • Dehumidifiers: Dehumidifiers also help maintain ideal humidity by keeping the air from getting too humid, leading to mold, mildew growth, and overall discomfort. Dehumidifiers are also crucial for keeping basements dry.
  • Duct cleaning: Dust, allergens, and debris in your home’s ductwork can negatively affect your indoor air quality. Duct cleaning solutions from A+ Derr can improve indoor air quality, ensuring that you and your family breathe easier.

Call us today at 833-232-4328 to schedule indoor air quality services for your Kentuckiana home.

How to Tell if You Have Poor Indoor Air Quality

You may worry about whether your town’s air is polluted, but you should know that the air in your home can be up to five times more polluted than outdoor air.

Here’s how to tell if you have poor indoor air quality:

  • You wake up with a dry throat every morning: Frequent dry or itchy eyes, dry throat, nose bleeds, and sneezing are all signs that your air is too dry. Dry air also increases your risk of catching airborne illnesses.
  • The air feels muggy or sticky: If it always feels humid and sticky in your house, you likely need a whole-home dehumidifier. Aside from discomfort, excess humidity also encourages mold and mildew growth.
  • Someone has a respiratory condition: If someone in your home has a respiratory condition, their symptoms are likely worse in a house with polluted air.
  • Your air never smells fresh: Cooking, pet odors, cleaning chemicals, mold and mildew, smoking, and more can cause unpleasant and unhealthy odors that can’t be removed by cleaning or opening a window.

Contact our team today at 833-232-4328 to schedule indoor air quality services.

Making Your Home’s Air Work for You

Good indoor air quality isn’t just about removing what you don’t want — it’s also about creating a healthier, more balanced environment that works with your lifestyle. Whether you’re dealing with seasonal allergies, the effects of a humid summer, or a home that always feels dusty, the right combination of IAQ solutions can make a noticeable difference. Our technicians take the time to understand your home’s specific needs so we can recommend equipment that delivers results you’ll actually feel.

From whole-home purification to targeted humidity control, we design each solution to integrate seamlessly with your HVAC system for consistent comfort throughout the year. With the right setup, you can breathe easier, protect your home from moisture-related damage, and enjoy cleaner air with less effort.

Why Choose Us For Indoor Air Quality Services In Evansville Or Louisville?

At A+ Derr, we have over 50 years of experience improving indoor air quality for northern Kentucky and southern Indiana residents. Our proven reputation for excellent service and products makes us the team to call when you need healthier, fresher air in your home.

Contact our team today at 833-232-4328 to schedule indoor air quality services in Kentuckiana.

Indoor Air Quality FAQs

Here are some things you can do regularly to keep your home’s air fresher and healthier year-round:

  • Clean or replace the filter in your HVAC system at least every three months, and more often if you have pets or someone smokes in the house.
  • When the weather permits, open windows to circulate fresh air.
  • Always use the vent fan over your stove when cooking to reduce humidity from steam.
  • Vacuum once a week if you have two or more pets that shed fur.

Indoor air is polluted by particles, germs, and chemicals. All three can cause respiratory problems, fatigue, and an increased risk of getting sick. They can also reduce the service life of your HVAC equipment and lead to more frequent repair needs.

The need for indoor air quality systems is obvious, such as a dehumidifier if your air is too humid or you notice mold or mildew growth. Other issues don’t have an obvious solution, so our experts can assess your home’s air and make a professional recommendation.

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Discover The A+ Derr Difference

24/7 Heating & Cooling Repairs

Heating and cooling emergencies can happen on nights, weekends, and holidays, so you can trust us to be there no matter when you need us.

Licensed & Experienced Technicians

Our experts have the expertise and training to deliver the highest quality services every time.

100% Satisfaction Guarantee

Our team is dedicated to ensuring your 100% satisfaction with every HVAC service we perform.

Servicing All Major Makes & Models Of Equipment

We are a Lennox Premier Dealer and also service on all makes and models of equipment, including Goodman, Amana, Carrier, Trane, Rheem & more!

Locally Owned & Operated

Since we’re based in Kentuckiana, we know the needs of Evansville, Louisville, and surrounding communities.

50+ Years in Business

For over 50 years, A+ Derr has provided high-quality service, products, and results for Kentuckiana's residents.

24/7 Heating & Cooling Repairs

Heating and cooling emergencies can happen on nights, weekends, and holidays, so you can trust us to be there no matter when you need us.

Licensed & Experienced Technicians

Our experts have the expertise and training to deliver the highest quality services every time.

100% Satisfaction Guarantee

Our team is dedicated to ensuring your 100% satisfaction with every HVAC service we perform.

Servicing All Major Makes & Models Of Equipment

We are a Lennox Premier Dealer and also service on all makes and models of equipment, including Goodman, Amana, Carrier, Trane, Rheem & more!

Locally Owned & Operated

Since we’re based in Kentuckiana, we know the needs of Evansville, Louisville, and surrounding communities.

50+ Years in Business

For over 50 years, A+ Derr has provided high-quality service, products, and results for Kentuckiana's residents.

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Our Reviews

See What Your Neighbors Are Saying

I would recommend A+ Derr and their staff any day! Best service I have ever had! Go to them for your Heating and Cooling needs. You will not be disappointed.

Barbara C.

Barbara C.

Very good service. Knowledgeable HVAC experts always keeping us cool in the summer and warm all winter. This is a great team of professionals from start to finish.

Craig B.

Craig B.

Amazing level of courtesy and professionalism. Communication was great and the price was more than reasonable. Highly recommend.

Chip M.

Chip M.

Guys came and installed two full systems at the house. Respectful, cleaned up after themselves and answered any and all questions. Thank you again!! Definitely recommend!

Jason H.

Jason H.

Very knowledgeable and courteous. Toured me through all the functions of the new unit. Completed work very neatly and respectfully. Would recommend to anyone.

Derek S.

Derek S.