Dependable AC Installation and Repair Service in Evansville & Louisville

Your home is the place that you should feel the most comfortable in, but when your air conditioning stops working, it can quickly lead to an uncomfortable environment. When that happens, it’s time to call in the experts at A+ Derr, who can help with any cooling system issues that you might be having.

Having problems with your air conditioning? Give us a call at (833) 232-4328 or contact us online!

AC Installation, Repair & Maintenance Services

Whether you need help with installing an entirely new air conditioner, repairing the one you currently have, or simply having a routine maintenance check scheduled, our team is ready and able to help.

How To Tell if Your AC Unit Needs To Be Repaired or Replaced

The best way to tell if your air conditioning needs to be repaired or replaced is to have one of our skilled professionals take a look, but there are some signs you can be on the lookout for at home, such as:

  • Your air conditioning blowing out warm air
  • The thermostat not working
  • Strange noises coming from the AC unit
  • Odd smells coming from the AC unit

Want to schedule an inspection with one of our technicians? Call us at (833) 232-4328 or schedule an appointment online!

A+ Derr Is a Lennox Premier Dealer

Lennox Premier Dealer logo

At A+ Derr, we believe in providing you with the best air conditioning products in the market. That’s why we are proud to be a Lennox Premier Dealer! As a Premier Dealer, we have access to top-of-the-line AC products so that you can benefit from their enhanced cooling power. Lennox systems are energy-efficient, powerful, and reliable.

To learn more about Lennox products or to schedule an air conditioner replacement, contact A+ Derr at (833) 232-4328.

24/7 Repair Service Available

We know that your air conditioning doesn’t always break during convenient business hours, so we offer 24/7 repair services. Whenever your AC breaks, one of our team members will be here to take your call!

Benefits of System Maintenance

Having a yearly system maintenance check performed on your air conditioning system helps to identify problems with your system that could become larger issues later. This will protect you against a broken AC and will also save you money on costly repairs later on down the line.

Frequently Asked AC Questions

If your unit is older than 10 years old, it is a good time to start at least considering purchasing a new air conditioning unit.

SEER stands for Seasonal Energy Efficiency Rating and will tell you how energy-efficient your unit is — the higher the SEER number on your unit, the more efficient the unit is.

The cost of a new HVAC or air conditioning system depends on your home and comfort needs. To get you the most accurate cost, please schedule an appointment with one of our comfort advisers. All estimates are free of charge and will ensure you are getting a precise and accurate price. Furthermore, with our 0% financing, we have actually seen AC and HVAC systems pay for themselves.

To calculate the appropriate HVAC system size, we would need to schedule one of our comfort advisers to visit your home. Square footage, windows, insulation and ceiling height are just a few of the relevant items that will determine the type of AC system you need.

Why Choose A+ Derr?

A+ Derr has been proudly serving Evansville and Louisville for almost 50 years and has unsurpassed customer service. You can count on us for free estimates on our replacement quotes and 100% satisfaction guarantee on any product installed by us within the first year.

When you need air conditioning repairs, maintenance, or installations, call the A+ Derr team at (833) 232-4328 or contact us online!

Need AC Repair or HVAC Service?

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

  • Trucks stocked with HVAC parts to complete the job
  • Service all air conditioner 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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It's Back! Up To $2,500 Off High Efficiency Furnace & A/C

PLUS We Pay Your Last Utility Bill Up To $500!

Limited Time Special. Not to be combined with any other offer.

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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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