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Evansville and Louisville area’s Heating and Air Conditioning Specialists

A+ Derr Heating and Cooling is dedicated to providing the best possible HVAC solution for heating, air conditioning, heat pumps and furnaces for your home or business. You can count on us to provide you with a system and solution that fits your unique needs and since we’ve installed many systems in this area, we’ve earned a reputation for doing the job right the first time!

Furthermore, when you call A+ Derr Heating and Cooling for your heating, air conditioning or geothermal concerns you will get a fast response, a trained, qualified technician to correct the problem and superior service…all at an affordable price!

When your AC unit or furnace is having issues, it seems there is nothing more frustrating. Take comfort knowing that at A+ Derr Heating and Cooling , our friendly professionals will have you sitting back and relaxing in no time. In conclusion, our specialists have been serving the Evansville and surrounding areas with our heating, air conditioning and geothermal services for years with great customer reviews.

Read Our Reviews


A+ Derr Offers Heating and Air Conditioning Repair, Service and Installation on the following:

  • Air Conditioners, Air Purification
  • Geothermal, Humidifiers
  • Furnace, Heating, Heat Pumps
Heating and Air Conditioning Solution in Evansville, IN

Convenient & Reliable Heating & Cooling Repair Services

We are proud to offer reliable Evansville AC repair services to residential and commercial customers with fast response times and the most accurate solutions around. Our team of continually trained experts will work quickly to make a diagnosis, and offer suggestions to repair or replace. You can always expect honesty from our staff, as well as upfront pricing that is free of hidden costs.

Adding additional benefit to our air conditioning repair service, we offer convenient appointment times with hard to find evening and Saturday appointments and no overtime charges! At A+ Derr Heating and Cooling, we understand the stress and inconvenience of a broken AC and as a result we do everything we can to counteract it with the utmost level of convenience and satisfaction!

Platinum+ Systems
Replacement & Installations

Are you interested in replacing your existing system with something newer and more efficient, but aren’t sure how to go about choosing the right system? Our comfort advisors and installation team will work with you one-on-one to match you with one of many high quality Platinum+ systems, based on your preferences, needs, as well as the capacity and load size of your space.

Investing in a new system is a major decision, therefore we aim to make it a smooth process with our expert assistance, even going so far as to match you with available rebates and tax credits to help you save money on your purchase! Are you ready to upgrade? Don’t hesitate and call us today to schedule an installation estimate for your space!

Heating and Air Conditioning Systems
Evansville HVAC Maintenance

Maintenance Service for Safety & Prevention

As your premiere Evansville air conditioning service, you can expect us to go above and beyond to ensure your comfort. This includes providing service even when your systems are working properly, just for best results, ensuring your safety, and preventing costly system repairs. This is done with one of our planned service agreements, complete with semi-annual maintenance for all makes and models of systems.

By allowing a professional to inspect, clean, and tune your equipment, it will be better prepared for extended use during the peak of the season when its performance is most needed and depended upon. Contact A+ Derr Heating and Cooling today for more information on these services or others including home energy audits, geothermal installations, or even indoor air quality solutions.

What Our Customers Are Saying

“Mark came out to take care of me when the technician that had been scheduled was running behind due to unforeseen problems at the home of the client scheduled before me. My experience started with Yvette when I called for information & schedule an appointment. She was very helpful and scheduled me right away. Mark N. came to the house. He was very good w my dog! He then explained the procedure,& found an issue that could save me hassles & $$ in the future. I am very happy with my entire experience & opted for the 6-month service checkup. Thanks to all at A+Derr!”
Diane W, A+Derr Customer
“Jake came and did my spring service yesterday. Their service is very professional, they are always out to get the best deals for anything I may need. I purchased new units from them a couple years ago, and the savings has been so noticeable.”
Amanda A, A+Derr Customer
“Nicholas has always been so polite and professional.
We feel very comfortable having him in our home and know that his inspections are thorough.”
Vicki L, A+Derr Customer
“Dylan came today for our tune up and as usual, we are very pleased with our service.”
Haley B, A+Derr Customer
“Texal and his crew came out on time. Had 2 new systems put in. The service was great. Highly recommend.”
Beverly G, A+Derr Customer
“Awesome service. They make it easy and painless to keep our new HVAC up and running at top efficiency!”
Hal B, A+Derr Customer

Contact Us Today to Schedule You Service