Best HVAC Service In Elizabethtown, KY | Free Estimate
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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Heating, Cooling & IAQ in Elizabethtown, KY

Midwesterners want common-sense solutions to HVAC issues. Elizabethtown, KY, property owners are no different. The A+ Derr Heating & Cooling family has provided Elizabethtown and Hardin County with superior HVAC service for over 50 years.

Indoor air quality, safety, and reliability are our priority. We’re always here for you if you need HVAC repair, replacement, or a tune-up. Our trained technicians use industry-best practices, and we guarantee our work. We guarantee our customer care, too.

Find out why Elizabethtown, KY, trusts A+ Derr heating, cooling, and IAQ for fast, dependable HVAC service. Call us at 833-232-4328 or contact A+ Derr online.

Comprehensive Air Conditioning

Cool, comfortable indoor air is vital to your quality of life. Air conditioning is necessary for health and safety in many homes. We offer the following services to ensure your home is cool and comfortable all year:

Be sure to ask about the health and environmental benefits of ductless air conditioning in Elizabethtown. We provide:

Energy-saving, high-quality heat pumps are a great way to save money while delivering comfortable air conditioning to Northern Kentucky and Southern Indiana homes. Our team offers heat pump maintenance and 24/7 heat pump repair.Don’t delay HVAC repair or replacement. To schedule an appointment, call us at 833-232-4328.

Top-Rated Heating

Most Elizabethtown homes were built in the 1990s. If your HVAC system is nearing the end of its life span (10-15 years) or showing signs of furnace problems, A+ Derr Heating & Cooling can offer energy- and money-saving options. Our heating services include:

There’s no heating system make or model we can’t service, especially furnaces and boilers. Ductless mini-splits are also great options for heating and AC systems.A+ Derr is the Elizabethtown geothermal heating expert:

IAQ Solutions

Clean, healthy indoor air quality has never been more important! Ozone- and particle-polluted air can cause health issues, and because we spend so much time inside, our indoor air quality makes a big difference in our quality of life. A+ Derr Elizabethtown IAQ services include duct cleaning and dehumidifiers. Our air purifiers are the best way to kill airborne pathogens, dust, pet dander, and pollen.Let us explain the benefits of cleaner, healthier indoor air in Elizabethtown, KY. Call 833-232-4328 or contact A+ Derr online today.

Why Choose A+ Derr?

Because we’re family owned and locally operated, it makes sense for our heating and cooling professionals to try harder for the best HVAC customer service. We live where we work! Check out why your neighbors choose A+ Derr Heating & Cooling.

Your HVAC is the most expensive system in your home, and regular maintenance can ensure it lasts longer. Every customer is a top priority, but our Maintenance Plan customers are at the top of our list in a weather-related crisis.

Our licensed, insured HVAC professionals take pride in what we do! To schedule an appointment, call us at 833-232-4328.

FAQs

Do Air Purifiers Get Rid Of Smoke Smells?

Not only will an air purifier remove smoke and smoky smells, but it will also eliminate the dangerous chemicals from your indoor air.

Why Won’t My AC Kick In?

If your air conditioning doesn’t come on, it may be a thermostat problem. Other reasons your AC won’t kick in are clogged filters or a condenser-related issue.

Recent Jobs and Reviews in Elizabethtown, KY

Job Locations and Reviews

Elizabethtown, KY - Diagnosed and serviced 3-year-old Amana heat pump system experiencing delayed heating response in upstairs unit. Inspection revealed heat strips were not activating properly, causing approximately one hour delay between heat pump operation and auxiliary heat engagement. Cleaned debris from outdoor unit, verified proper operation of downstairs system, and adjusted control board settings to ensure timely activation of heat strips when temperature differential requires supplemental heating.
Anthony L.
Anthony L. Checked in
Diagnosed and serviced 3-year-old Amana heat pump system experiencing delayed heating response in upstairs unit. Inspection revealed heat strips were not activating properly, causing approximately one hour delay between heat pump operation and auxiliary heat engagement. Cleaned debris from outdoor unit, verified proper operation of downstairs system, and adjusted control board settings to ensure timely activation of heat strips when temperature differential requires supplemental heating.
Elizabethtown, KY 42701
Completed annual maintenance on 1-year-old HVAC system as part of Platinum Level service plan (2nd visit). Performed electrical testing on control board components using multimeter, confirming proper voltage readings. Inspected outdoor Lennox condensing unit, verified proper operation, and addressed customer's concern about the exhaust line - no damage was found.
Completed annual maintenance on 1-year-old HVAC system as part of Platinum Level service plan (2nd visit). Performed electrical testing on control board components using multimeter, confirming proper voltage readings. Inspected outdoor Lennox condensing unit, verified proper operation, and addressed customer's concern about the exhaust line - no damage was found.
Victor W.
Victor W. Checked in
Completed annual maintenance on 1-year-old HVAC system as part of Platinum Level service plan (2nd visit). Performed electrical testing on control board components using multimeter, confirming proper voltage readings. Inspected outdoor Lennox condensing unit, verified proper operation, and addressed customer's concern about the exhaust line - no damage was found.
Elizabethtown, KY 42701
Completed monthly platinum maintenance service on 13-year-old system. Verified Nest thermostat functionality and proper heat operation at 66°F setpoint. Performed electrical diagnostic testing with multimeter, confirming proper voltage readings at 13.6V. Replaced 20x20x1 filter as scheduled.
Completed monthly platinum maintenance service on 13-year-old system. Verified Nest thermostat functionality and proper heat operation at 66°F setpoint. Performed electrical diagnostic testing with multimeter, confirming proper voltage readings at 13.6V. Replaced 20x20x1 filter as scheduled.
Anthony L.
Anthony L. Checked in
Completed monthly platinum maintenance service on 13-year-old system. Verified Nest thermostat functionality and proper heat operation at 66°F setpoint. Performed electrical diagnostic testing with multimeter, confirming proper voltage readings at 13.6V. Replaced 20x20x1 filter as scheduled.
Elizabethtown, KY 42701
Conducted site assessment for propane generator installation, evaluating existing electrical infrastructure including 200A service panel with approximately 20-24 circuit breakers. Customer requires generator estimate for backup power system and previously inquired about HVAC solutions for two bedrooms. Documented panel configuration and load distribution to determine appropriate generator sizing and transfer switch requirements.
Conducted site assessment for propane generator installation, evaluating existing electrical infrastructure including 200A service panel with approximately 20-24 circuit breakers. Customer requires generator estimate for backup power system and previously inquired about HVAC solutions for two bedrooms. Documented panel configuration and load distribution to determine appropriate generator sizing and transfer switch requirements.
Brandon H.
Brandon H. Checked in
Conducted site assessment for propane generator installation, evaluating existing electrical infrastructure including 200A service panel with approximately 20-24 circuit breakers. Customer requires generator estimate for backup power system and previously inquired about HVAC solutions for two bedrooms. Documented panel configuration and load distribution to determine appropriate generator sizing and transfer switch requirements.
Elizabethtown, KY 42701
Conducted follow-up inspection of previously rerun exhaust system after customer reported water leakage into attic from cut PVC pipe left during initial service. Visual examination of the attic space confirmed presence of disconnected PVC pipe sections near the black insulated ductwork, resulting in condensation accumulation. Properly sealed and reconnected the PVC pipe to eliminate the leak source.
Conducted follow-up inspection of previously rerun exhaust system after customer reported water leakage into attic from cut PVC pipe left during initial service. Visual examination of the attic space confirmed presence of disconnected PVC pipe sections near the black insulated ductwork, resulting in condensation accumulation. Properly sealed and reconnected the PVC pipe to eliminate the leak source.
Jordan S.
Jordan S. Checked in
Conducted follow-up inspection of previously rerun exhaust system after customer reported water leakage into attic from cut PVC pipe left during initial service. Visual examination of the attic space confirmed presence of disconnected PVC pipe sections near the black insulated ductwork, resulting in condensation accumulation. Properly sealed and reconnected the PVC pipe to eliminate the leak source.
Elizabethtown, KY 42701
Responded to customer complaint regarding auxiliary heat malfunction. Inspection revealed excessive runtime alerts on the ecobee thermostat system, indicating potential control or relay issues. After examining the control panel wiring and connections, repaired faulty auxiliary heat relay and reorganized crossed wiring to restore proper heat sequence operation.
Responded to customer complaint regarding auxiliary heat malfunction. Inspection revealed excessive runtime alerts on the ecobee thermostat system, indicating potential control or relay issues. After examining the control panel wiring and connections, repaired faulty auxiliary heat relay and reorganized crossed wiring to restore proper heat sequence operation.
Victor W.
Victor W. Checked in
Responded to customer complaint regarding auxiliary heat malfunction. Inspection revealed excessive runtime alerts on the ecobee thermostat system, indicating potential control or relay issues. After examining the control panel wiring and connections, repaired faulty auxiliary heat relay and reorganized crossed wiring to restore proper heat sequence operation.
Elizabethtown, KY 42701
Performed semi-annual tune-up on 1-year-old HVAC system for platinum member. Replaced existing BAM 16x25x4 air filter with new Koch filter. Inspected and serviced ignition system components, including examination and testing of the ceramic igniter assembly.
Performed semi-annual tune-up on 1-year-old HVAC system for platinum member. Replaced existing BAM 16x25x4 air filter with new Koch filter. Inspected and serviced ignition system components, including examination and testing of the ceramic igniter assembly.
Victor W.
Victor W. Checked in
Performed semi-annual tune-up on 1-year-old HVAC system for platinum member. Replaced existing BAM 16x25x4 air filter with new Koch filter. Inspected and serviced ignition system components, including examination and testing of the ceramic igniter assembly.
Elizabethtown, KY 42701
Elizabethtown, KY - Conducted follow-up site visit to complete previously unfinished HVAC installation work. Accessed crawl space to evaluate PVC piping, insulated ductwork, and electrical components for the pending condensate pump installation and AC wiring connection. Will return to complete the installation once all necessary materials are available.
Jordan S.
Jordan S. Checked in
Conducted follow-up site visit to complete previously unfinished HVAC installation work. Accessed crawl space to evaluate PVC piping, insulated ductwork, and electrical components for the pending condensate pump installation and AC wiring connection. Will return to complete the installation once all necessary materials are available.
Elizabethtown, KY 42701
Performed monthly maintenance on a 7-year-old 16x20x5 HVAC system. Conducted temperature differential testing showing 28.5°F reading and measured system amperage at 6.79 amps with clamp meter. All readings within normal operating parameters for platinum maintenance plan service.
Performed monthly maintenance on a 7-year-old 16x20x5 HVAC system. Conducted temperature differential testing showing 28.5°F reading and measured system amperage at 6.79 amps with clamp meter. All readings within normal operating parameters for platinum maintenance plan service.
Victor W.
Victor W. Checked in
Performed monthly maintenance on a 7-year-old 16x20x5 HVAC system. Conducted temperature differential testing showing 28.5°F reading and measured system amperage at 6.79 amps with clamp meter. All readings within normal operating parameters for platinum maintenance plan service.
Elizabethtown, KY 42701
Completed installation of new RED complete HVAC system in basement area. Conducted full system level verification using spirit level to ensure proper unit orientation. Performed comprehensive CAM check on unit with proper connections to existing ductwork. Documented installation with photos showing proper mounting and alignment of system components.
Completed installation of new RED complete HVAC system in basement area. Conducted full system level verification using spirit level to ensure proper unit orientation. Performed comprehensive CAM check on unit with proper connections to existing ductwork. Documented installation with photos showing proper mounting and alignment of system components.
Jordan S.
Jordan S. Checked in
Completed installation of new RED complete HVAC system in basement area. Conducted full system level verification using spirit level to ensure proper unit orientation. Performed comprehensive CAM check on unit with proper connections to existing ductwork. Documented installation with photos showing proper mounting and alignment of system components.
Elizabethtown, KY 42701
Elizabethtown, KY - Responded to customer complaint of constant loud humming noise from Coleman HVAC system. Upon inspection of the 4-year-old unit, identified and resolved vibration issues within the air handler assembly. System is now operating at normal noise levels while maintaining proper heating function at 74°F setpoint.
Anthony L.
Anthony L. Checked in
Responded to customer complaint of constant loud humming noise from Coleman HVAC system. Upon inspection of the 4-year-old unit, identified and resolved vibration issues within the air handler assembly. System is now operating at normal noise levels while maintaining proper heating function at 74°F setpoint.
Elizabethtown, KY 42701
Completed follow-up service call to address failed inspection items. Installed required Safety T-Switch and PVC cap on condensation line to bring system into compliance with inspection requirements. System should now meet all inspection criteria for property closing.
Completed follow-up service call to address failed inspection items. Installed required Safety T-Switch and PVC cap on condensation line to bring system into compliance with inspection requirements. System should now meet all inspection criteria for property closing.
Brandon H.
Brandon H. Checked in
Completed follow-up service call to address failed inspection items. Installed required Safety T-Switch and PVC cap on condensation line to bring system into compliance with inspection requirements. System should now meet all inspection criteria for property closing.
Elizabethtown, KY 42701
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What To Expect

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.