Storefront of the A+ Derr building in Louisville

Reliable Heating & Air Conditioning Services in Louisville, Kentucky

A fourth-generation, family-operated company based in Louisville, A+ Derr has proudly served the Louisville community for nearly 50 years. Our decades of experience have equipped us with the skills and tools necessary to solve all of your HVAC needs. Our comprehensive heating and cooling services will bring you the solutions you need to stay comfortable in your home year-round.

For A+ HVAC services, choose A+ Derr! Call us at (833) 232-4328 or contact us online to schedule service in Louisville.

Located at:
1225 Gardiner Lane
Louisville, KY 40213

HVAC Services in Louisville

Keeping your home comfortable year-round is no easy feat with the Louisville weather. That’s why A+ Derr is here to help with dependable heating and air conditioning services you can count on.

Cooling Services

Don’t let the summer heat turn your home into an oven! Our team is highly trained to address all of your AC needs, whether for routine maintenance, a complex repair, or a complete system replacement. You can count on our friendly technicians to ensure your home is cool even when the temperatures start to soar outside. Our air conditioning services in Louisville include:

When you need AC services for your Louisville home, turn to the A+ Derr team! Call (833) 232-4328 to schedule an appointment.

How To Choose an AC System

When selecting a new air conditioning system for your Louisville home, one of the most important things to consider is the size. An improperly sized unit will not cool your home efficiently, thus costing you more in energy bills and causing too much wear and tear on the unit. Some homeowners may think that choosing a larger AC than your home needs will help to keep it cool, but it will likely cause uneven cooling throughout your home.

At A+ Derr, our team has seen it all when it comes to air conditioners. We’ll help you select the perfect unit for your home and budget and ensure it’s properly sized for your cooling needs.

Heating Services

At A+ Derr, your comfort is our top priority, so we don’t want you to be freezing in your own home. If your furnace is on the fritz or you need a heat pump installed, our team has you covered! We’re even available 24/7 if your furnace goes out in the middle of the night. Our comprehensive heating services include:

  • Heating repair
  • Heating maintenance
  • Heating installation

Signs You Need Furnace Repair

Some signs that your furnace isn’t working as it should are obvious, such as a complete lack of heat. Others may not be, so here’s what to look out for:

  • Insufficient heating
  • Short-cycling (i.e., unit turning on and off quickly)
  • Burning smells
  • Loud noises, such as banging, whirring, buzzing, etc.
  • Unexplained rise in energy bills

If you notice any of these signs or others that something is amiss with your furnace, call our team at (833) 232-4328 for repairs!

Indoor Air Quality

A+ Derr wants to ensure you can breathe easily in your home, so we offer whole-home air quality solutions for your benefit. If you’ve noticed that you have worsening allergy or asthma symptoms, dry skin, itchiness, or are becoming ill more frequently, it’s time to take steps toward improving your air quality.

With A+ Derr on your side, you’ll be breathing clean, fresh, and healthy air in no time! Call (833) 232-4328 to learn more.

Louisville Customer Experiences

Professionalism, Punctuality, Quality, Responsiveness, Value

At A+ Derr, we put our values of professionalism, punctuality, quality, responsiveness, and value into everything we do. We believe in always providing the best customer experience, from our friendly technicians to our top-notch HVAC services. But don’t just take our word for it! Read these reviews from your fellow Louisville residents that show why working with us is an A+ experience:

  • “Absolutely love A+ Derr! They were extremely professional from the start, and explain everything thoroughly. Always answers any questions that I have. Best part is they send you a picture of the tech that is coming to your house. I think that is amazing, so you know who is coming that way you know beforehand. Definitely a great safety measure. 100% satisfied with this company. Would recommend to anyone.”

  • “Used this company to replace our HVAC system and for maintenance. They provide top notch service and equipment at a reasonable price! Technicians have all been friendly and answered all my questions. I recommend them to family, friends and clients in need of their services.”

  • “I purchased my new energy efficient unit from A+ Derr over 3 years ago. They have always been professional, on time, and provide excellent quality service. They have always been straight forward with me from day one. I did my research before selecting A+ Derr, and very happy that I chose the right company the first time.”

Choose A+ Derr Heating & Air Conditioning

A+ Derr employees and service vans lined up in front of the A+ Derr building.

For nearly 50 years, A+ Derr has provided the heating and cooling solutions that Louisville families need to stay comfortable in their homes. As a fourth-generation, family-operated company, we always put the customer first. That’s why you can count on us to provide:

  • 24/7 emergency service
  • 100% satisfaction guarantee
  • Free estimates on replacement quotes and service calls
  • Highly trained and courteous technicians

To schedule heating or AC repair, maintenance, or installations in Louisville, KY, call A+ Derr at (833) 232-4328.

Need HVAC Repair or Service?

  • A+ expert HVAC technicians available 24 hours, 7 days a week

  • Trucks stocked with HVAC parts to complete the job
  • Service all air conditioner and heating system makes and models

  • Up to 5 years warranty on HVAC parts
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Heating and Cooling Maintenance Plan

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Special Offers

$98 Furnace Tune-up & Safety Check (reg. $189)

Bonus Free Smoke Detector (New Customers Only)

System guaranteed to work all season or service is free!

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Lowest Price of the Season!

$3,990 Furnace Installed + 0% Interest For Up To 18 Months*

*Contact for more details

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Save on Service or Repair

Save on Service or Repair $25 OFF

System guaranteed to work all season or service is free!

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