About Us | A+ Derr Heating & Cooling
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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About Us

Learn More About Who We Are

A+ Derr is a 4th generation family-operated company that has served the Evansville, Newburgh, Boonville, Western Kentucky, and Louisville area for over 50 years! A+ Derr has one of the area’s largest and most responsive technician fleets. We take pride in taking care of our customers promptly and professionally! Customers who choose A+ Derr receive quality products with outstanding customer service. We believe in standing behind our work and backing this up with our 100% satisfaction guarantee! If you’re not happy with a product we installed after the 1st year, we’ll buy it back! Our team provides our customers with the best possible solution 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.

At A+ Derr Heating & Cooling, we are committed to serving our local communities. Whether donating our time, volunteering with local organizations, or sponsoring an event, we constantly look for ways to help those around us. Over the past years, we have had the privilege of working with great organizations and meeting fantastic people. A+ Derr is proud to partner with the Animal Care Society for our Furry Friends Fundraiser! Our community involvement includes the following:

  • Animal Care Society
  • Susan G. Komen
  • Play For Kate
  • Evansville Rescue Mission
  • DreamCenter
  • Canned Food Drives
  • Gobbler Gathering
  • Warrick County FOP
  • Boonville Middle School Career Day
  • Local Youth Sports
  • Salvation Army
  • Warrick County Schools
  • Vanderburgh County Schools
  • Blue Grass Honor Flight
  • Honor Flight of Southern Indiana
  • Warrick County Humane Society
  • Free System Giveaways
  • Animal Care Society
  • SusanG. Komen
  • Play For Kate
  • Evansville Rescue Mission
  • Dream Center
  • Canned Food Drives
  • Gobbler Gathering
  • Warrick County FOP
  • Boonville Middle School Career Day
  • Local Youth Sports
  • Salvation Army
  • Warrick County Schools
  • Vanderburgh County Schools
  • Blue Grass Honor Flight
  • Honor Flight of Southern Indiana
  • Warrick County Humane Society
  • Free System Giveaways
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