Local HVAC Services In Boonville, IN | AC & Heating Repair
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 & Indoor Air Quality in Boonville, IN

A good HVAC system in your home can make hot and cold days much more bearable. If your heater or air conditioner isn’t keeping up with the outdoor temperatures, look to A+ Derr Heating & Cooling for help. Our expert technicians can uncover the root cause of your system’s issues and provide the most necessary solutions.Contact the A+ Derr team online or call 833-232-4328 to schedule HVAC services at your Boonville home.

Heating Services

Staying warm during the cold winter months requires a top-notch heating unit. When it’s time for repair, replacement, or maintenance, turn to the pros at A+ Derr. We can provide services for every type of heating unit, including:

  • Furnaces: We guarantee that your furnace has a good heating element, blower motor, and air filter. We provide furnace installation, maintenance, and repairs.
  • Heat Pumps: We’ll make sure your heat pump is still moving heat energy into your home from outside.
  • Ductless mini-splits: We’ll ensure that your wall-mounted mini-split can still control the climate in your room.

Air Conditioning in Boonville, IN

Even in Indiana, the summer temperatures can reach well into the 80s and 90s. Is your AC ready to keep you cool all summer long? If not, turn to the A+ Derr team for assistance. We offer:

  • Installation and replacement: Our team can replace your old, dying AC with a brand-new, energy-efficient model.
  • Repair: Our staff can diagnose and resolve any problem going on with your AC unit.
  • Maintenance: Our crew can perform a comprehensive, multipoint inspection of the internal workings of your AC system.

Whether you have an air conditioner, heat pump, or series of ductless mini-splits, look to A+ Derr for the services you need most. Call 833-232-4328 now or contact us online to get started.

Benefits of Upgrading Your HVAC System

Replacing any part of your HVAC system can make a world of difference in your home’s climate. Just a few perks of replacing your system include:

  • Consistent heating and cooling for every room: Enjoy comfortable temperatures wherever you go in your house.
  • Lower energy bills and a reduced carbon footprint: Save money and help save the planet simultaneously.
  • Less chance of needing regular repairs and maintenance: New HVAC systems are much less likely to need repairs for a while after installation.

Reach out to A+ Derr online or call 833-232-4328 now to schedule HVAC system replacement services in Boonville.

Indoor Air Quality Services

Breathing the cleanest air possible is vital to your health. With the right indoor air quality services, you can rest easy knowing your air is pure. You may have low-quality air throughout your home if:

  • You have experienced more allergies in recent months
  • You notice layers of dust on your tables and surfaces
  • Your HVAC filters seem dustier than ever before

Enjoy clean air every day with help from A+ Derr. Contact us online or call our team at 833-232-4328 to schedule IAQ services.

Why Choose A+ Derr?

Since 1975, A+ Derr has been resolving HVAC problems for clients throughout the Boonville region. Our fourth-generation family business treats every client like one of our own. You can count on us for free estimates, 24/7 emergency service, Lennox-brand HVAC units, and a 100% satisfaction guarantee.Schedule HVAC services in Boonville, IN, now by calling 833-232-4328 or contacting us online.

Recent Jobs and Reviews in Boonville, IN

Job Locations and Reviews

Responded to service call for air conditioning system not cooling with visible ice and frost accumulation on both outdoor unit and indoor furnace area. Upon arrival, performed comprehensive system evaluation and documented existing equipment installation. Conducted load calculation analysis revealing cooling load of 35,220 BTU and heating load of 55,053 BTU for the residence. Assessment identified freezing condition affecting system performance, with ice buildup preventing proper refrigerant flow and heat exchange. Documented outdoor condensing unit installation and current system configuration for service records and future reference.
Responded to service call for air conditioning system not cooling with visible ice and frost accumulation on both outdoor unit and indoor furnace area. Upon arrival, performed comprehensive system evaluation and documented existing equipment installation. Conducted load calculation analysis revealing cooling load of 35,220 BTU and heating load of 55,053 BTU for the residence. Assessment identified freezing condition affecting system performance, with ice buildup preventing proper refrigerant flow and heat exchange. Documented outdoor condensing unit installation and current system configuration for service records and future reference.
Craig U.
Craig U. Checked in
Responded to service call for air conditioning system not cooling with visible ice and frost accumulation on both outdoor unit and indoor furnace area. Upon arrival, performed comprehensive system evaluation and documented existing equipment installation. Conducted load calculation analysis revealing cooling load of 35,220 BTU and heating load of 55,053 BTU for the residence. Assessment identified freezing condition affecting system performance, with ice buildup preventing proper refrigerant flow and heat exchange. Documented outdoor condensing unit installation and current system configuration for service records and future reference.
Boonville, IN 47601
Completed annual Platinum Level maintenance on 9-year-old HVAC system during second visit of the service period. Performed comprehensive inspection of Aspen refrigerant evaporator coil (Model CG36B3417SR157) with R-410A refrigerant and confirmed proper operation. Accessed furnace unit and thoroughly inspected internal components including heat exchanger assembly, burner components, blower motor assembly, gas valves, pressure switches, and control board with all electrical connections. Verified all wiring connections across upper and lower compartments remained secure and properly terminated. Inspected condensate drain line for proper drainage. Documented equipment condition through photographic records showing all major components and manufacturer specifications. System operational and ready for continued service with renewal period approaching.
Completed annual Platinum Level maintenance on 9-year-old HVAC system during second visit of the service period. Performed comprehensive inspection of Aspen refrigerant evaporator coil (Model CG36B3417SR157) with R-410A refrigerant and confirmed proper operation. Accessed furnace unit and thoroughly inspected internal components including heat exchanger assembly, burner components, blower motor assembly, gas valves, pressure switches, and control board with all electrical connections. Verified all wiring connections across upper and lower compartments remained secure and properly terminated. Inspected condensate drain line for proper drainage. Documented equipment condition through photographic records showing all major components and manufacturer specifications. System operational and ready for continued service with renewal period approaching.
Christian C.
Christian C. Checked in
Completed annual Platinum Level maintenance on 9-year-old HVAC system during second visit of the service period. Performed comprehensive inspection of Aspen refrigerant evaporator coil (Model CG36B3417SR157) with R-410A refrigerant and confirmed proper operation. Accessed furnace unit and thoroughly inspected internal components including heat exchanger assembly, burner components, blower motor assembly, gas valves, pressure switches, and control board with all electrical connections. Verified all wiring connections across upper and lower compartments remained secure and properly terminated. Inspected condensate drain line for proper drainage. Documented equipment condition through photographic records showing all major components and manufacturer specifications. System operational and ready for continued service with renewal period approaching.
Boonville, IN 47601
Responded to no-cool service call on 11-year-old system with frost buildup and complete failure to power on. Upon arrival, found air handler in utility closet with extensive evaporator coil icing and unit unresponsive to thermostat commands. Accessed internal components by removing lower access panel and front cabinet to inspect blower assembly, electrical connections, and refrigerant circuit. Diagnosed frozen evaporator coil due to restricted airflow caused by severely clogged air filter and accumulated debris within blower housing. Secondary issue identified: faulty capacitor preventing compressor from starting, contributing to system shutdown. Removed obstruction from blower wheel, replaced air filter, and installed new dual-run capacitor. Allowed adequate defrost time before testing system operation. Verified proper airflow through supply vents, confirmed compressor engagement, and monitored refrigerant pressures to ensure system returned to normal cooling operation. Advised proper
Responded to no-cool service call on 11-year-old system with frost buildup and complete failure to power on. Upon arrival, found air handler in utility closet with extensive evaporator coil icing and unit unresponsive to thermostat commands. Accessed internal components by removing lower access panel and front cabinet to inspect blower assembly, electrical connections, and refrigerant circuit. Diagnosed frozen evaporator coil due to restricted airflow caused by severely clogged air filter and accumulated debris within blower housing. Secondary issue identified: faulty capacitor preventing compressor from starting, contributing to system shutdown. Removed obstruction from blower wheel, replaced air filter, and installed new dual-run capacitor. Allowed adequate defrost time before testing system operation. Verified proper airflow through supply vents, confirmed compressor engagement, and monitored refrigerant pressures to ensure system returned to normal cooling operation. Advised proper
Cole C.
Cole C. Checked in
Responded to no-cool service call on 11-year-old system with frost buildup and complete failure to power on. Upon arrival, found air handler in utility closet with extensive evaporator coil icing and unit unresponsive to thermostat commands. Accessed internal components by removing lower access panel and front cabinet to inspect blower assembly, electrical connections, and refrigerant circuit. Diagnosed frozen evaporator coil due to restricted airflow caused by severely clogged air filter and accumulated debris within blower housing. Secondary issue identified: faulty capacitor preventing compressor from starting, contributing to system shutdown. Removed obstruction from blower wheel, replaced air filter, and installed new dual-run capacitor. Allowed adequate defrost time before testing system operation. Verified proper airflow through supply vents, confirmed compressor engagement, and monitored refrigerant pressures to ensure system returned to normal cooling operation. Advised proper
Boonville, IN 47601
Completed planned maintenance on 13-year-old residential HVAC system. Performed electrical diagnostics using digital multimeter, verifying system voltage and component functionality. Inspected outdoor condensing unit with access panel removed, examining TITAN PRO capacitor, contactors, relays, and control board. Verified proper wire connections throughout unit including power and control wiring. System operating within normal parameters. Recommended 16x25x1 filter replacement for continued optimal performance.
Completed planned maintenance on 13-year-old residential HVAC system. Performed electrical diagnostics using digital multimeter, verifying system voltage and component functionality. Inspected outdoor condensing unit with access panel removed, examining TITAN PRO capacitor, contactors, relays, and control board. Verified proper wire connections throughout unit including power and control wiring. System operating within normal parameters. Recommended 16x25x1 filter replacement for continued optimal performance.
Michael H.
Michael H. Checked in
Completed planned maintenance on 13-year-old residential HVAC system. Performed electrical diagnostics using digital multimeter, verifying system voltage and component functionality. Inspected outdoor condensing unit with access panel removed, examining TITAN PRO capacitor, contactors, relays, and control board. Verified proper wire connections throughout unit including power and control wiring. System operating within normal parameters. Recommended 16x25x1 filter replacement for continued optimal performance.
Boonville, IN 47601
Responded to customer complaint of inadequate cooling performance in upstairs zone of residence. Performed comprehensive system evaluation including visual inspection of ductwork in basement/crawl space area and completed Manual J load calculation for the 1839 square foot conditioned space to assess system sizing and capacity requirements. Load calculation accounted for directional glass exposure, shading factors, and design conditions with 75°F indoor setpoint against 92°F outdoor design temperature. Documented existing HVAC infrastructure and ductwork configuration to determine if system capacity matches actual cooling load demands for proper zone temperature control.
Responded to customer complaint of inadequate cooling performance in upstairs zone of residence. Performed comprehensive system evaluation including visual inspection of ductwork in basement/crawl space area and completed Manual J load calculation for the 1839 square foot conditioned space to assess system sizing and capacity requirements. Load calculation accounted for directional glass exposure, shading factors, and design conditions with 75°F indoor setpoint against 92°F outdoor design temperature. Documented existing HVAC infrastructure and ductwork configuration to determine if system capacity matches actual cooling load demands for proper zone temperature control.
Francis I.
Francis I. Checked in
Responded to customer complaint of inadequate cooling performance in upstairs zone of residence. Performed comprehensive system evaluation including visual inspection of ductwork in basement/crawl space area and completed Manual J load calculation for the 1839 square foot conditioned space to assess system sizing and capacity requirements. Load calculation accounted for directional glass exposure, shading factors, and design conditions with 75°F indoor setpoint against 92°F outdoor design temperature. Documented existing HVAC infrastructure and ductwork configuration to determine if system capacity matches actual cooling load demands for proper zone temperature control.
Boonville, IN 47601
Completed Platinum Level planned maintenance on 7-year-old HVAC system during annual second visit. Replaced 20x25x2 air filter, performed comprehensive system inspection, and tested electrical components including capacitor voltage readings which measured 94.35V using digital multimeter. Inspected condenser unit's internal components including CoreSense diagnostic module and compressor diagnostics system, verified all electrical connections and wiring were secure and functioning properly. System operating within normal parameters with no issues identified.
Completed Platinum Level planned maintenance on 7-year-old HVAC system during annual second visit. Replaced 20x25x2 air filter, performed comprehensive system inspection, and tested electrical components including capacitor voltage readings which measured 94.35V using digital multimeter. Inspected condenser unit's internal components including CoreSense diagnostic module and compressor diagnostics system, verified all electrical connections and wiring were secure and functioning properly. System operating within normal parameters with no issues identified.
Michael H.
Michael H. Checked in
Completed Platinum Level planned maintenance on 7-year-old HVAC system during annual second visit. Replaced 20x25x2 air filter, performed comprehensive system inspection, and tested electrical components including capacitor voltage readings which measured 94.35V using digital multimeter. Inspected condenser unit's internal components including CoreSense diagnostic module and compressor diagnostics system, verified all electrical connections and wiring were secure and functioning properly. System operating within normal parameters with no issues identified.
Boonville, IN 47601
Boonville, IN - Responded to no cooling call on 5-year-old residential AC system. Upon arrival, accessed outdoor unit control compartment and performed electrical diagnostics using testing equipment. Inspected control board, relays, and wiring connections for proper operation and identified the source of system failure, completing necessary repairs to restore full cooling functionality to the home.
Christian C.
Christian C. Checked in
Responded to no cooling call on 5-year-old residential AC system. Upon arrival, accessed outdoor unit control compartment and performed electrical diagnostics using testing equipment. Inspected control board, relays, and wiring connections for proper operation and identified the source of system failure, completing necessary repairs to restore full cooling functionality to the home.
Boonville, IN 47601
Boonville, IN - Responded to no cooling call on 8-year-old residential HVAC system that was completely non-operational. Upon arrival, confirmed unit would not start and verified electrical panel breakers were in proper position with no trips. Performed diagnostic inspection of outdoor condensing unit and identified failed dual-run capacitor preventing compressor and condenser fan motor operation. Removed defective capacitor, installed new replacement capacitor with proper microfarad ratings, and restored power to unit. Tested system operation and confirmed compressor engaged properly, condenser fan motor running at correct speed, and unit achieving normal cooling cycle.
Christian C.
Christian C. Checked in
Responded to no cooling call on 8-year-old residential HVAC system that was completely non-operational. Upon arrival, confirmed unit would not start and verified electrical panel breakers were in proper position with no trips. Performed diagnostic inspection of outdoor condensing unit and identified failed dual-run capacitor preventing compressor and condenser fan motor operation. Removed defective capacitor, installed new replacement capacitor with proper microfarad ratings, and restored power to unit. Tested system operation and confirmed compressor engaged properly, condenser fan motor running at correct speed, and unit achieving normal cooling cycle.
Boonville, IN 47601
Boonville, IN - Responded to no-cool complaint on outdoor condensing unit. Upon arrival, performed diagnostic evaluation of system with suspected pressure switch failure or low refrigerant charge. Conducted visual inspection of condenser unit exterior components and fan assembly. Performed necessary repairs to restore cooling operation, which included accessing internal components and utilizing specialized tools for service work. System returned to normal operating condition with proper airflow and cooling functionality restored.
Ricky B.
Ricky B. Checked in
Responded to no-cool complaint on outdoor condensing unit. Upon arrival, performed diagnostic evaluation of system with suspected pressure switch failure or low refrigerant charge. Conducted visual inspection of condenser unit exterior components and fan assembly. Performed necessary repairs to restore cooling operation, which included accessing internal components and utilizing specialized tools for service work. System returned to normal operating condition with proper airflow and cooling functionality restored.
Boonville, IN 47601
Responded to no cooling complaint on 15-year-old Bryant PLUS 90 system utilizing R22 refrigerant. Diagnosed low refrigerant charge as cause of inadequate cooling performance. Recharged system with R22 refrigerant to manufacturer specifications and verified proper operation of condenser unit and indoor air handler. System returned to normal cooling operation with no evidence of evaporator coil icing or other secondary issues.
Responded to no cooling complaint on 15-year-old Bryant PLUS 90 system utilizing R22 refrigerant. Diagnosed low refrigerant charge as cause of inadequate cooling performance. Recharged system with R22 refrigerant to manufacturer specifications and verified proper operation of condenser unit and indoor air handler. System returned to normal cooling operation with no evidence of evaporator coil icing or other secondary issues.
Ricky B.
Ricky B. Checked in
Responded to no cooling complaint on 15-year-old Bryant PLUS 90 system utilizing R22 refrigerant. Diagnosed low refrigerant charge as cause of inadequate cooling performance. Recharged system with R22 refrigerant to manufacturer specifications and verified proper operation of condenser unit and indoor air handler. System returned to normal cooling operation with no evidence of evaporator coil icing or other secondary issues.
Boonville, IN 47601
Boonville, IN - Performed routine maintenance on State ProLine residential water heater, completing a thorough tank flush to remove sediment buildup and maintain optimal unit performance. Customer's plumbing maintenance membership was also renewed to ensure continued preventative care coverage.
Kyle D.
Kyle D. Checked in
Performed routine maintenance on State ProLine residential water heater, completing a thorough tank flush to remove sediment buildup and maintain optimal unit performance. Customer's plumbing maintenance membership was also renewed to ensure continued preventative care coverage.
Boonville, IN 47601
Completed installation of a 3.5-ton, 15.5 SEER heat pump system with matching air handler in a modular home in Boonville. The outdoor heat pump unit was positioned on a concrete pad adjacent to the home's exterior wall with proper clearances maintained, and refrigerant lines were connected and charged to manufacturer specifications. The indoor air handler was installed vertically in a dedicated utility closet with appropriate supply and return air ductwork connections to the existing plenum system.
Completed installation of a 3.5-ton, 15.5 SEER heat pump system with matching air handler in a modular home in Boonville. The outdoor heat pump unit was positioned on a concrete pad adjacent to the home's exterior wall with proper clearances maintained, and refrigerant lines were connected and charged to manufacturer specifications. The indoor air handler was installed vertically in a dedicated utility closet with appropriate supply and return air ductwork connections to the existing plenum system.
Cole B.
Cole B. Checked in
Completed installation of a 3.5-ton, 15.5 SEER heat pump system with matching air handler in a modular home in Boonville. The outdoor heat pump unit was positioned on a concrete pad adjacent to the home's exterior wall with proper clearances maintained, and refrigerant lines were connected and charged to manufacturer specifications. The indoor air handler was installed vertically in a dedicated utility closet with appropriate supply and return air ductwork connections to the existing plenum system.
Boonville, IN 47601
Responded to no-cooling call on residential AC system. Upon inspection, identified refrigerant leak at outdoor line set joint connection. System was low on R410A refrigerant. Added 2 lbs of R410A to restore temporary cooling operation. Documented severely corroded copper line set connections at outdoor unit with visible oxidation and patina formation indicating prolonged exposure to moisture and environmental elements. Repair plan approved to include: pump down refrigerant to compressor, repair leaking joint, pressure test line set and evaporator coil, perform vacuum, and rebalance system. Indoor evaporator coil leak test to be performed during scheduled repair visit to verify coil integrity before proceeding with line set repairs. System currently operational with temporary refrigerant charge. Follow-up appointment required to complete permanent repairs.
Responded to no-cooling call on residential AC system. Upon inspection, identified refrigerant leak at outdoor line set joint connection. System was low on R410A refrigerant. Added 2 lbs of R410A to restore temporary cooling operation. Documented severely corroded copper line set connections at outdoor unit with visible oxidation and patina formation indicating prolonged exposure to moisture and environmental elements. Repair plan approved to include: pump down refrigerant to compressor, repair leaking joint, pressure test line set and evaporator coil, perform vacuum, and rebalance system. Indoor evaporator coil leak test to be performed during scheduled repair visit to verify coil integrity before proceeding with line set repairs. System currently operational with temporary refrigerant charge. Follow-up appointment required to complete permanent repairs.
Francis I.
Francis I. Checked in
Responded to no-cooling call on residential AC system. Upon inspection, identified refrigerant leak at outdoor line set joint connection. System was low on R410A refrigerant. Added 2 lbs of R410A to restore temporary cooling operation. Documented severely corroded copper line set connections at outdoor unit with visible oxidation and patina formation indicating prolonged exposure to moisture and environmental elements. Repair plan approved to include: pump down refrigerant to compressor, repair leaking joint, pressure test line set and evaporator coil, perform vacuum, and rebalance system. Indoor evaporator coil leak test to be performed during scheduled repair visit to verify coil integrity before proceeding with line set repairs. System currently operational with temporary refrigerant charge. Follow-up appointment required to complete permanent repairs.
Boonville, IN 47601
Completed platinum level monthly maintenance on a 5-year-old HVAC system. Performed comprehensive inspection of evaporator coil assembly, verified copper tubing connections and refrigerant lines for proper condition, and checked electrical connections and controls. Replaced monthly air filter at return air grille location. Utilized digital diagnostic instruments to measure and verify system performance parameters. All components found operating within normal specifications with no deficiencies noted. System tested and confirmed operational upon completion of maintenance procedures.
Completed platinum level monthly maintenance on a 5-year-old HVAC system. Performed comprehensive inspection of evaporator coil assembly, verified copper tubing connections and refrigerant lines for proper condition, and checked electrical connections and controls. Replaced monthly air filter at return air grille location. Utilized digital diagnostic instruments to measure and verify system performance parameters. All components found operating within normal specifications with no deficiencies noted. System tested and confirmed operational upon completion of maintenance procedures.
Michael H.
Michael H. Checked in
Completed platinum level monthly maintenance on a 5-year-old HVAC system. Performed comprehensive inspection of evaporator coil assembly, verified copper tubing connections and refrigerant lines for proper condition, and checked electrical connections and controls. Replaced monthly air filter at return air grille location. Utilized digital diagnostic instruments to measure and verify system performance parameters. All components found operating within normal specifications with no deficiencies noted. System tested and confirmed operational upon completion of maintenance procedures.
Boonville, IN 47601
Completed Gold Level planned maintenance on American Standard Freedom 80 furnace system. Performed comprehensive inspection of heating equipment, verified proper operation of all components, and documented system condition with photos. System is operating within normal parameters with no immediate service needs identified.
Completed Gold Level planned maintenance on American Standard Freedom 80 furnace system. Performed comprehensive inspection of heating equipment, verified proper operation of all components, and documented system condition with photos. System is operating within normal parameters with no immediate service needs identified.
Christian C.
Christian C. Checked in
Completed Gold Level planned maintenance on American Standard Freedom 80 furnace system. Performed comprehensive inspection of heating equipment, verified proper operation of all components, and documented system condition with photos. System is operating within normal parameters with no immediate service needs identified.
Boonville, IN 47601
Boonville, IN - Completed Gold Level planned maintenance on 17-year-old residential air conditioning system. Performed comprehensive inspection of outdoor condensing unit, including visual assessment of cabinet condition, refrigerant lines, and electrical connections. Noted vegetation encroachment around unit perimeter that may restrict airflow if left unmanaged. Evaluated system operation and documented equipment condition with photographic records. Customer reported separate plumbing concern regarding leaky sink; advised that plumbing issue would require dedicated service appointment with appropriate trade specialist.
Francis I.
Francis I. Checked in
Completed Gold Level planned maintenance on 17-year-old residential air conditioning system. Performed comprehensive inspection of outdoor condensing unit, including visual assessment of cabinet condition, refrigerant lines, and electrical connections. Noted vegetation encroachment around unit perimeter that may restrict airflow if left unmanaged. Evaluated system operation and documented equipment condition with photographic records. Customer reported separate plumbing concern regarding leaky sink; advised that plumbing issue would require dedicated service appointment with appropriate trade specialist.
Boonville, IN 47601
Completed annual planned maintenance on 8-month-old Lennox HVAC system including furnace and air handler. Performed comprehensive system diagnostics using dual port manometer to verify refrigerant pressures and system performance, recording readings within normal operating parameters. Inspected all electrical connections, wiring harnesses, and control components for proper operation. Replaced 16x25x5 air filter and verified airflow through system. Conducted visual inspection of condensate drain lines, PVC piping, and flexible ductwork connections. All components functioning properly with no issues identified during this first annual maintenance visit.
Completed annual planned maintenance on 8-month-old Lennox HVAC system including furnace and air handler. Performed comprehensive system diagnostics using dual port manometer to verify refrigerant pressures and system performance, recording readings within normal operating parameters. Inspected all electrical connections, wiring harnesses, and control components for proper operation. Replaced 16x25x5 air filter and verified airflow through system. Conducted visual inspection of condensate drain lines, PVC piping, and flexible ductwork connections. All components functioning properly with no issues identified during this first annual maintenance visit.
Tyler C.
Tyler C. Checked in
Completed annual planned maintenance on 8-month-old Lennox HVAC system including furnace and air handler. Performed comprehensive system diagnostics using dual port manometer to verify refrigerant pressures and system performance, recording readings within normal operating parameters. Inspected all electrical connections, wiring harnesses, and control components for proper operation. Replaced 16x25x5 air filter and verified airflow through system. Conducted visual inspection of condensate drain lines, PVC piping, and flexible ductwork connections. All components functioning properly with no issues identified during this first annual maintenance visit.
Boonville, IN 47601
Completed second annual Gold Level maintenance visit on 5-year-old residential air conditioning system. Performed comprehensive AC tune-up including inspection of condenser unit, cleaning of exterior panels and coil surfaces which showed moderate dirt and debris accumulation, verification of refrigerant levels via copper line connections, testing of electrical components, and replacement of 16x25x4 air filter. System operating within normal parameters with no mechanical issues identified; all components functioning properly and unit ready for continued service.
Completed second annual Gold Level maintenance visit on 5-year-old residential air conditioning system. Performed comprehensive AC tune-up including inspection of condenser unit, cleaning of exterior panels and coil surfaces which showed moderate dirt and debris accumulation, verification of refrigerant levels via copper line connections, testing of electrical components, and replacement of 16x25x4 air filter. System operating within normal parameters with no mechanical issues identified; all components functioning properly and unit ready for continued service.
Michael H.
Michael H. Checked in
Completed second annual Gold Level maintenance visit on 5-year-old residential air conditioning system. Performed comprehensive AC tune-up including inspection of condenser unit, cleaning of exterior panels and coil surfaces which showed moderate dirt and debris accumulation, verification of refrigerant levels via copper line connections, testing of electrical components, and replacement of 16x25x4 air filter. System operating within normal parameters with no mechanical issues identified; all components functioning properly and unit ready for continued service.
Boonville, IN 47601
Completed annual platinum-level preventive maintenance on single HVAC system installed in March 2024. Performed comprehensive inspection and service of all system components per manufacturer specifications. Verified thermostat programming and Wi-Fi connectivity status, confirming proper communication with smart home network (SpectrumSetup-X) and mobile device integration. Tested "Feels Like" temperature feature settings and reviewed system configuration menu including fan operation, heat/cool modes, humidity controls, and notification preferences. Collected filter size information for future service requirements. All equipment operating within normal parameters with no deficiencies noted at time of service.
Completed annual platinum-level preventive maintenance on single HVAC system installed in March 2024. Performed comprehensive inspection and service of all system components per manufacturer specifications. Verified thermostat programming and Wi-Fi connectivity status, confirming proper communication with smart home network (SpectrumSetup-X) and mobile device integration. Tested "Feels Like" temperature feature settings and reviewed system configuration menu including fan operation, heat/cool modes, humidity controls, and notification preferences. Collected filter size information for future service requirements. All equipment operating within normal parameters with no deficiencies noted at time of service.
Tyler C.
Tyler C. Checked in
Completed annual platinum-level preventive maintenance on single HVAC system installed in March 2024. Performed comprehensive inspection and service of all system components per manufacturer specifications. Verified thermostat programming and Wi-Fi connectivity status, confirming proper communication with smart home network (SpectrumSetup-X) and mobile device integration. Tested "Feels Like" temperature feature settings and reviewed system configuration menu including fan operation, heat/cool modes, humidity controls, and notification preferences. Collected filter size information for future service requirements. All equipment operating within normal parameters with no deficiencies noted at time of service.
Boonville, IN 47601
Conducted comprehensive site evaluation for HVAC system replacement. Assessed existing outdoor condensing unit condition, electrical disconnect configuration, and main electrical panel capacity to determine equipment compatibility and installation requirements. Documented current system layout including conduit routing, power supply connections, and available breaker space for new equipment specifications. Provided detailed replacement estimate with energy-efficient equipment options meeting customer's requirements.
Conducted comprehensive site evaluation for HVAC system replacement. Assessed existing outdoor condensing unit condition, electrical disconnect configuration, and main electrical panel capacity to determine equipment compatibility and installation requirements. Documented current system layout including conduit routing, power supply connections, and available breaker space for new equipment specifications. Provided detailed replacement estimate with energy-efficient equipment options meeting customer's requirements.
Danny M.
Danny M. Checked in
Conducted comprehensive site evaluation for HVAC system replacement. Assessed existing outdoor condensing unit condition, electrical disconnect configuration, and main electrical panel capacity to determine equipment compatibility and installation requirements. Documented current system layout including conduit routing, power supply connections, and available breaker space for new equipment specifications. Provided detailed replacement estimate with energy-efficient equipment options meeting customer's requirements.
Boonville, IN 47601
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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.