Your Trusted Haubstadt Experts for Heating, Cooling, Plumbing & Electrical - 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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Your Trusted Haubstadt Experts for Heating, Cooling, Plumbing & Electrical

heat pump installation

Life in Haubstadt, IN, is built on the values of hard work, family, and keeping things simple—but keeping your home systems running smoothly isn’t always so easy. That’s where A+ Derr Heating, Cooling, Plumbing & Electrical comes in. We’re proud to provide Haubstadt homeowners with high-quality, reliable services that go beyond the basics. From keeping your air conditioning humming through humid summers to fixing a stubborn leak or updating outdated wiring, we treat your home like our own.

With decades of experience serving Gibson County and the surrounding area, our licensed technicians bring a level of care, professionalism, and honesty that makes a real difference. We don’t just fix problems—we help prevent them. Because at the end of the day, we believe your comfort should never be in question. Give the A+ Derr team a call today at 833-232-4328 or contact us online to schedule your Haubstadt home service. 

Local Knowledge, Personalized Care in Haubstadt

We know Haubstadt. We’ve driven the backroads, serviced homes near Haubstadt Community School, and helped families prep for winter before the first freeze hits. When you call A+ Derr, you’re getting more than a contractor—you’re getting a neighbor who knows what it takes to keep your systems running through Southern Indiana’s ever-changing seasons.

Our work is always tailored to your home, your schedule, and your budget. That means honest advice, upfront pricing, and service that’s focused on long-term results—not quick fixes.

Expert Plumbing Services in Haubstadt, IN

A leaky pipe or faulty water heater can throw off your whole day. Our plumbing professionals respond fast, work cleanly, and deliver long-lasting solutions for homes of all ages:

Haubstadt’s Choice for Safe, Reliable Electrical Services in Haubstadt

When it comes to electrical work in your home, there’s no room for shortcuts or guesswork. That’s why homeowners in Haubstadt turn to A+ Derr for dependable, safety-first electrical services. Our licensed electricians bring years of experience to every job, whether you live in a century-old farmhouse or a brand-new build. 

Keep Warm With Haubstadt Heating Services Built for Indiana Winters

Cold weather in Haubstadt isn’t just uncomfortable—it can be dangerous without a reliable heating system. Our team specializes in making sure your home stays warm, efficient, and safe all season long:

  • Furnace Repairs & Diagnostics: If your furnace isn’t heating properly, we’ll quickly identify the issue and get it back up and running efficiently.
  • New System Installation: From single-stage to high-efficiency multi-stage systems, we install heating solutions tailored to your home’s layout.
  • Seasonal Heating Maintenance: Routine tune-ups extend system life, reduce breakdown risk, and help your unit operate at peak performance.
  • Heat Pump Services: Dual-purpose heating and cooling systems that are cost-effective and ideal for Southern Indiana’s climate.
  • Boiler Inspections & Repairs: We maintain hydronic systems for consistent warmth and safety in homes using boilers.
  • Geothermal Heating Solutions: Harness the earth’s natural temperature to reduce your energy usage and maintain year-round comfort.

Cooling Services to Beat the Haubstadt Heat

Brand new AC condenser unit in front of wooden fence

When the Indiana summer turns up the heat, we’re here to help you stay cool without spiking your utility bills. Our cooling experts deliver dependable solutions to keep your indoor environment comfortable and efficient:

  • AC Repairs & Emergency Service: Our technicians provide fast, accurate repairs for all major brands so you can stay cool no matter what.
  • Custom AC Installation: We evaluate your space and cooling needs to install an energy-efficient system sized perfectly for your home.
  • Preventative AC Maintenance: Prevent breakdowns, improve efficiency, and keep energy costs low with regular system maintenance.
  • Ductless Cooling Systems: Ideal for homes without existing ductwork, ductless units offer quiet, zoned cooling with easy installation.
  • Indoor Air Quality Solutions: We offer whole-home filtration, dehumidification, and purification to remove allergens and pollutants from your air.

Schedule Trusted Home Services in Haubstadt Today

Whether you’re dealing with an HVAC emergency, planning a home improvement project, or simply need a reliable technician for regular maintenance, A+ Derr Heating, Cooling, Plumbing & Electrical is here to help. We serve Haubstadt with a full range of professional services—and we do it with a smile.

Call 833-232-4328 today to schedule an appointment or request a free estimate online. Your home deserves nothing less than A+ care.

Recent Jobs and Reviews in Haubstadt, IN

Job Locations and Reviews

Completed monthly planned maintenance on residential HVAC system including furnace and outdoor condensing unit. Inspected 16x25x5 air filter on 8-year-old system, verified proper operation of heating and cooling equipment, checked refrigerant lines and electrical connections, and documented equipment condition through photographic records. All components found operating within normal parameters with no immediate service needs identified.
Completed monthly planned maintenance on residential HVAC system including furnace and outdoor condensing unit. Inspected 16x25x5 air filter on 8-year-old system, verified proper operation of heating and cooling equipment, checked refrigerant lines and electrical connections, and documented equipment condition through photographic records. All components found operating within normal parameters with no immediate service needs identified.
Justin M.
Justin M. Checked in
Completed monthly planned maintenance on residential HVAC system including furnace and outdoor condensing unit. Inspected 16x25x5 air filter on 8-year-old system, verified proper operation of heating and cooling equipment, checked refrigerant lines and electrical connections, and documented equipment condition through photographic records. All components found operating within normal parameters with no immediate service needs identified.
Haubstadt, IN 47639
Responded to customer report of water dripping from condensate drain. Upon arrival, confirmed drain line obstruction causing water overflow at exterior discharge point near foundation. Cleared plugged condensate drain line and verified proper drainage flow. Completed scheduled Duo Maintenance on both 4-year-old systems including filter replacements with 16x24x4 filters, system inspections, and performance verification on both units.
Responded to customer report of water dripping from condensate drain. Upon arrival, confirmed drain line obstruction causing water overflow at exterior discharge point near foundation. Cleared plugged condensate drain line and verified proper drainage flow. Completed scheduled Duo Maintenance on both 4-year-old systems including filter replacements with 16x24x4 filters, system inspections, and performance verification on both units.
Francis I.
Francis I. Checked in
Responded to customer report of water dripping from condensate drain. Upon arrival, confirmed drain line obstruction causing water overflow at exterior discharge point near foundation. Cleared plugged condensate drain line and verified proper drainage flow. Completed scheduled Duo Maintenance on both 4-year-old systems including filter replacements with 16x24x4 filters, system inspections, and performance verification on both units.
Haubstadt, IN 47639
Completed installation of a 3-ton, 18 SEER complete HVAC system including outdoor condensing unit and indoor air handler with associated ductwork, refrigerant lines, condensate drainage, and electrical connections. The outdoor unit was positioned on a concrete pad at the building's exterior corner with proper clearances, while the indoor equipment was installed in the utility room with flexible insulated ductwork and PVC condensate piping routed to existing infrastructure. System was tested, charged to manufacturer specifications, and left in full operational condition.
Completed installation of a 3-ton, 18 SEER complete HVAC system including outdoor condensing unit and indoor air handler with associated ductwork, refrigerant lines, condensate drainage, and electrical connections. The outdoor unit was positioned on a concrete pad at the building's exterior corner with proper clearances, while the indoor equipment was installed in the utility room with flexible insulated ductwork and PVC condensate piping routed to existing infrastructure. System was tested, charged to manufacturer specifications, and left in full operational condition.
Cole B.
Cole B. Checked in
Completed installation of a 3-ton, 18 SEER complete HVAC system including outdoor condensing unit and indoor air handler with associated ductwork, refrigerant lines, condensate drainage, and electrical connections. The outdoor unit was positioned on a concrete pad at the building's exterior corner with proper clearances, while the indoor equipment was installed in the utility room with flexible insulated ductwork and PVC condensate piping routed to existing infrastructure. System was tested, charged to manufacturer specifications, and left in full operational condition.
Haubstadt, IN 47639
Responded to no cooling complaint with system blowing warm air. Upon arrival, confirmed adequate airflow through vents with no ice buildup on evaporator coil. Performed complete system diagnostics on air handler and outdoor condensing unit. Identified refrigerant issue affecting cooling capacity. Completed necessary repairs to restore proper system operation and verified unit cycling correctly with appropriate temperature differential across coil.
Responded to no cooling complaint with system blowing warm air. Upon arrival, confirmed adequate airflow through vents with no ice buildup on evaporator coil. Performed complete system diagnostics on air handler and outdoor condensing unit. Identified refrigerant issue affecting cooling capacity. Completed necessary repairs to restore proper system operation and verified unit cycling correctly with appropriate temperature differential across coil.
Craig U.
Craig U. Checked in
Responded to no cooling complaint with system blowing warm air. Upon arrival, confirmed adequate airflow through vents with no ice buildup on evaporator coil. Performed complete system diagnostics on air handler and outdoor condensing unit. Identified refrigerant issue affecting cooling capacity. Completed necessary repairs to restore proper system operation and verified unit cycling correctly with appropriate temperature differential across coil.
Haubstadt, IN 47639
Conducted comprehensive estimate for complete HVAC system replacement, converting existing electric heating and cooling system to gas-fired equipment. Assessed current thermostat wiring configuration and electrical panel capacity, documenting existing 30, 40, and 60-amp breakers to determine electrical infrastructure requirements for new gas system installation. Evaluated all components necessary for fuel conversion and provided detailed replacement recommendations to homeowner.
Conducted comprehensive estimate for complete HVAC system replacement, converting existing electric heating and cooling system to gas-fired equipment. Assessed current thermostat wiring configuration and electrical panel capacity, documenting existing 30, 40, and 60-amp breakers to determine electrical infrastructure requirements for new gas system installation. Evaluated all components necessary for fuel conversion and provided detailed replacement recommendations to homeowner.
James W.
James W. Checked in
Conducted comprehensive estimate for complete HVAC system replacement, converting existing electric heating and cooling system to gas-fired equipment. Assessed current thermostat wiring configuration and electrical panel capacity, documenting existing 30, 40, and 60-amp breakers to determine electrical infrastructure requirements for new gas system installation. Evaluated all components necessary for fuel conversion and provided detailed replacement recommendations to homeowner.
Haubstadt, IN 47639
Conducted comprehensive HVAC system replacement estimate at residential property. Evaluated existing ductwork configuration in basement area, including metallic supply ducts and flexible return ductwork. Assessed current system layout, structural considerations with exposed joists, and determined equipment sizing requirements for complete system replacement to provide customer with detailed replacement options and energy efficiency recommendations.
Conducted comprehensive HVAC system replacement estimate at residential property. Evaluated existing ductwork configuration in basement area, including metallic supply ducts and flexible return ductwork. Assessed current system layout, structural considerations with exposed joists, and determined equipment sizing requirements for complete system replacement to provide customer with detailed replacement options and energy efficiency recommendations.
Nick B.
Nick B. Checked in
Conducted comprehensive HVAC system replacement estimate at residential property. Evaluated existing ductwork configuration in basement area, including metallic supply ducts and flexible return ductwork. Assessed current system layout, structural considerations with exposed joists, and determined equipment sizing requirements for complete system replacement to provide customer with detailed replacement options and energy efficiency recommendations.
Haubstadt, IN 47639
Completed annual planned maintenance on HVAC system with 20x25x5 PURE AIR filter. Performed comprehensive inspection of heat exchanger, refrigerant lines, control board, and electrical connections. All components found operational with normal wear patterns; system tested and confirmed functioning properly.
Completed annual planned maintenance on HVAC system with 20x25x5 PURE AIR filter. Performed comprehensive inspection of heat exchanger, refrigerant lines, control board, and electrical connections. All components found operational with normal wear patterns; system tested and confirmed functioning properly.
Brent D.
Brent D. Checked in
Completed annual planned maintenance on HVAC system with 20x25x5 PURE AIR filter. Performed comprehensive inspection of heat exchanger, refrigerant lines, control board, and electrical connections. All components found operational with normal wear patterns; system tested and confirmed functioning properly.
Haubstadt, IN 47639
Completed annual Platinum Level maintenance on 1-year-old HVAC system including furnace and mini-split unit as first visit of Gold plan service agreement. Performed comprehensive inspection of vertically-mounted furnace unit with 20x25x5 filter, checked condensate drainage lines, verified electrical connections, and documented equipment model and serial numbers. Identified potential refrigerant leak concern on mini-split system requiring follow-up inspection with ultrasonic leak detector to be addressed in second ticket of this two-part service call.
Completed annual Platinum Level maintenance on 1-year-old HVAC system including furnace and mini-split unit as first visit of Gold plan service agreement. Performed comprehensive inspection of vertically-mounted furnace unit with 20x25x5 filter, checked condensate drainage lines, verified electrical connections, and documented equipment model and serial numbers. Identified potential refrigerant leak concern on mini-split system requiring follow-up inspection with ultrasonic leak detector to be addressed in second ticket of this two-part service call.
Danny M.
Danny M. Checked in
Completed annual Platinum Level maintenance on 1-year-old HVAC system including furnace and mini-split unit as first visit of Gold plan service agreement. Performed comprehensive inspection of vertically-mounted furnace unit with 20x25x5 filter, checked condensate drainage lines, verified electrical connections, and documented equipment model and serial numbers. Identified potential refrigerant leak concern on mini-split system requiring follow-up inspection with ultrasonic leak detector to be addressed in second ticket of this two-part service call.
Haubstadt, IN 47639
# HVAC Maintenance Summary

Completed annual planned maintenance on a 1-year-old Lennox residential HVAC system. Performed comprehensive inspection of outdoor condenser unit and indoor air handler, replaced 20x25x4 air filter, verified proper system operation, and documented equipment condition with photos.

# Detailed Work Performed

Conducted thorough annual maintenance service on residential heating and cooling system as part of planned maintenance agreement. This represented the first scheduled maintenance visit for the 1-year-old equipment.

**Outdoor Unit Inspection:**
Inspected Lennox brand condenser unit positioned on anti-vibration pad against exterior brick wall. Verified unit levelness and pad condition. Examined cabinet exterior for damage, corrosion, or deterioration. Checked louver-style ventilation grilles for obstructions and proper airflow clearance. Inspected fan guard and top grille cover for security and damage. Verified electrical conduit and refrigerant line set c
# HVAC Maintenance Summary

Completed annual planned maintenance on a 1-year-old Lennox residential HVAC system. Performed comprehensive inspection of outdoor condenser unit and indoor air handler, replaced 20x25x4 air filter, verified proper system operation, and documented equipment condition with photos.

# Detailed Work Performed

Conducted thorough annual maintenance service on residential heating and cooling system as part of planned maintenance agreement. This represented the first scheduled maintenance visit for the 1-year-old equipment.

**Outdoor Unit Inspection:**
Inspected Lennox brand condenser unit positioned on anti-vibration pad against exterior brick wall. Verified unit levelness and pad condition. Examined cabinet exterior for damage, corrosion, or deterioration. Checked louver-style ventilation grilles for obstructions and proper airflow clearance. Inspected fan guard and top grille cover for security and damage. Verified electrical conduit and refrigerant line set c
Jeremiah H.
Jeremiah H. Checked in
# HVAC Maintenance Summary Completed annual planned maintenance on a 1-year-old Lennox residential HVAC system. Performed comprehensive inspection of outdoor condenser unit and indoor air handler, replaced 20x25x4 air filter, verified proper system operation, and documented equipment condition with photos. # Detailed Work Performed Conducted thorough annual maintenance service on residential heating and cooling system as part of planned maintenance agreement. This represented the first scheduled maintenance visit for the 1-year-old equipment. **Outdoor Unit Inspection:** Inspected Lennox brand condenser unit positioned on anti-vibration pad against exterior brick wall. Verified unit levelness and pad condition. Examined cabinet exterior for damage, corrosion, or deterioration. Checked louver-style ventilation grilles for obstructions and proper airflow clearance. Inspected fan guard and top grille cover for security and damage. Verified electrical conduit and refrigerant line set c
Haubstadt, IN 47639
# Plumbing Maintenance - Tankless Water Heater Flush

Performed routine maintenance flush on wall-mounted A.O. Smith tankless water heater unit. Completed descaling procedure by connecting flush pump to service valves, circulating descaling solution through heat exchanger to remove mineral buildup and scale deposits. Inspected all plumbing connections, brass valves, and PEX tubing for proper operation. Verified unit functionality post-flush, checked digital display panel for error codes, and confirmed proper water flow through system. Unit returned to normal operation with improved efficiency.
# Plumbing Maintenance - Tankless Water Heater Flush

Performed routine maintenance flush on wall-mounted A.O. Smith tankless water heater unit. Completed descaling procedure by connecting flush pump to service valves, circulating descaling solution through heat exchanger to remove mineral buildup and scale deposits. Inspected all plumbing connections, brass valves, and PEX tubing for proper operation. Verified unit functionality post-flush, checked digital display panel for error codes, and confirmed proper water flow through system. Unit returned to normal operation with improved efficiency.
Kyle D.
Kyle D. Checked in
# Plumbing Maintenance - Tankless Water Heater Flush Performed routine maintenance flush on wall-mounted A.O. Smith tankless water heater unit. Completed descaling procedure by connecting flush pump to service valves, circulating descaling solution through heat exchanger to remove mineral buildup and scale deposits. Inspected all plumbing connections, brass valves, and PEX tubing for proper operation. Verified unit functionality post-flush, checked digital display panel for error codes, and confirmed proper water flow through system. Unit returned to normal operation with improved efficiency.
Haubstadt, IN 47639
Responded to no cooling call on 10+ year old Coleman HVAC system with complete power failure. Upon arrival, confirmed thermostat was non-responsive with no display, no airflow from vents, and no equipment operation. Performed comprehensive diagnostic of electrical system including main disconnect, breaker panel, and control circuits. Inspected outdoor condensing unit and indoor air handler for power supply issues. Tested low voltage transformer, thermostat wiring, and control board functionality. Identified failed components preventing system startup. Documented existing installation including Coleman furnace with air handler, 16x25x4 filtration system, and outdoor condensing unit mounted on concrete pad with proper refrigerant line connections. Photographed equipment configuration and electrical connections for service records. Provided customer with repair options and recommendations for restoring cooling operation to residence.
Responded to no cooling call on 10+ year old Coleman HVAC system with complete power failure. Upon arrival, confirmed thermostat was non-responsive with no display, no airflow from vents, and no equipment operation. Performed comprehensive diagnostic of electrical system including main disconnect, breaker panel, and control circuits. Inspected outdoor condensing unit and indoor air handler for power supply issues. Tested low voltage transformer, thermostat wiring, and control board functionality. Identified failed components preventing system startup. Documented existing installation including Coleman furnace with air handler, 16x25x4 filtration system, and outdoor condensing unit mounted on concrete pad with proper refrigerant line connections. Photographed equipment configuration and electrical connections for service records. Provided customer with repair options and recommendations for restoring cooling operation to residence.
Craig U.
Craig U. Checked in
Responded to no cooling call on 10+ year old Coleman HVAC system with complete power failure. Upon arrival, confirmed thermostat was non-responsive with no display, no airflow from vents, and no equipment operation. Performed comprehensive diagnostic of electrical system including main disconnect, breaker panel, and control circuits. Inspected outdoor condensing unit and indoor air handler for power supply issues. Tested low voltage transformer, thermostat wiring, and control board functionality. Identified failed components preventing system startup. Documented existing installation including Coleman furnace with air handler, 16x25x4 filtration system, and outdoor condensing unit mounted on concrete pad with proper refrigerant line connections. Photographed equipment configuration and electrical connections for service records. Provided customer with repair options and recommendations for restoring cooling operation to residence.
Haubstadt, IN 47639
# HVAC Maintenance Report

Completed second scheduled Gold Level maintenance visit on an 8-year-old single-system HVAC installation. Performed comprehensive inspection and servicing of Trane outdoor condenser unit, replaced two 20x25x5 air filters, documented system condition with photographs, and verified all electrical connections and operational components are functioning properly. Customer's Gold Level maintenance plan is due for renewal.
# HVAC Maintenance Report

Completed second scheduled Gold Level maintenance visit on an 8-year-old single-system HVAC installation. Performed comprehensive inspection and servicing of Trane outdoor condenser unit, replaced two 20x25x5 air filters, documented system condition with photographs, and verified all electrical connections and operational components are functioning properly. Customer's Gold Level maintenance plan is due for renewal.
Brock B.
Brock B. Checked in
# HVAC Maintenance Report Completed second scheduled Gold Level maintenance visit on an 8-year-old single-system HVAC installation. Performed comprehensive inspection and servicing of Trane outdoor condenser unit, replaced two 20x25x5 air filters, documented system condition with photographs, and verified all electrical connections and operational components are functioning properly. Customer's Gold Level maintenance plan is due for renewal.
Haubstadt, IN 47639
Completed Gold Level planned maintenance on 11-year-old residential HVAC system with single zone configuration. Performed comprehensive inspection of indoor air handler unit located in interior closet and outdoor condenser unit, changed 20x25x5 filter, verified proper system operation, and documented equipment condition with photos. No deficiencies noted during this initial service visit.
Completed Gold Level planned maintenance on 11-year-old residential HVAC system with single zone configuration. Performed comprehensive inspection of indoor air handler unit located in interior closet and outdoor condenser unit, changed 20x25x5 filter, verified proper system operation, and documented equipment condition with photos. No deficiencies noted during this initial service visit.
Luke O.
Luke O. Checked in
Completed Gold Level planned maintenance on 11-year-old residential HVAC system with single zone configuration. Performed comprehensive inspection of indoor air handler unit located in interior closet and outdoor condenser unit, changed 20x25x5 filter, verified proper system operation, and documented equipment condition with photos. No deficiencies noted during this initial service visit.
Haubstadt, IN 47639
Completed full HVAC system installation in residential basement, including new 4-ton furnace unit with 18 SEER cooling capacity and 99% AFUE heating efficiency. Installed complete ductwork system with insulated metallic plenum and distribution branches throughout basement ceiling joists. System includes proper electrical connections, condensate drainage via PVC piping, and integration with existing utility infrastructure. All components tested and operational upon completion.
Completed full HVAC system installation in residential basement, including new 4-ton furnace unit with 18 SEER cooling capacity and 99% AFUE heating efficiency. Installed complete ductwork system with insulated metallic plenum and distribution branches throughout basement ceiling joists. System includes proper electrical connections, condensate drainage via PVC piping, and integration with existing utility infrastructure. All components tested and operational upon completion.
Cole B.
Cole B. Checked in
Completed full HVAC system installation in residential basement, including new 4-ton furnace unit with 18 SEER cooling capacity and 99% AFUE heating efficiency. Installed complete ductwork system with insulated metallic plenum and distribution branches throughout basement ceiling joists. System includes proper electrical connections, condensate drainage via PVC piping, and integration with existing utility infrastructure. All components tested and operational upon completion.
Haubstadt, IN 47639
Conducted comprehensive HVAC system replacement estimate for aging residential furnace and air conditioning system that has been operating marginally for several years. Evaluated existing basement-installed gas furnace with associated ductwork and outdoor condensing unit mounted on exterior brick wall, documenting current equipment specifications, electrical connections, and venting configurations. Provided homeowner with detailed replacement options and recommendations for complete system upgrade to improve efficiency and reliability.
Conducted comprehensive HVAC system replacement estimate for aging residential furnace and air conditioning system that has been operating marginally for several years. Evaluated existing basement-installed gas furnace with associated ductwork and outdoor condensing unit mounted on exterior brick wall, documenting current equipment specifications, electrical connections, and venting configurations. Provided homeowner with detailed replacement options and recommendations for complete system upgrade to improve efficiency and reliability.
Nick B.
Nick B. Checked in
Conducted comprehensive HVAC system replacement estimate for aging residential furnace and air conditioning system that has been operating marginally for several years. Evaluated existing basement-installed gas furnace with associated ductwork and outdoor condensing unit mounted on exterior brick wall, documenting current equipment specifications, electrical connections, and venting configurations. Provided homeowner with detailed replacement options and recommendations for complete system upgrade to improve efficiency and reliability.
Haubstadt, IN 47639
Responded to a no-cooling call for a 5-year-old HVAC system with customer complaint of thermostat power loss and no airflow from vents. Upon inspection, discovered loose and deteriorated electrical connections at the control panel. Repaired and secured all wiring connections, restoring proper power to the thermostat and system functionality.
Responded to a no-cooling call for a 5-year-old HVAC system with customer complaint of thermostat power loss and no airflow from vents. Upon inspection, discovered loose and deteriorated electrical connections at the control panel. Repaired and secured all wiring connections, restoring proper power to the thermostat and system functionality.
Kevin H.
Kevin H. Checked in
Responded to a no-cooling call for a 5-year-old HVAC system with customer complaint of thermostat power loss and no airflow from vents. Upon inspection, discovered loose and deteriorated electrical connections at the control panel. Repaired and secured all wiring connections, restoring proper power to the thermostat and system functionality.
Haubstadt, IN 47639
Conducted a comprehensive evaluation of inadequate central air system for second floor space and assessed feasibility of mini-split installation as supplemental or replacement solution. Inspected attic conversion area with sloped ceiling and limited space constraints, noting existing structural elements and electrical access points that would impact installation options. Documented current system performance issues and customer requirements to develop appropriate HVAC replacement recommendations.
Conducted a comprehensive evaluation of inadequate central air system for second floor space and assessed feasibility of mini-split installation as supplemental or replacement solution. Inspected attic conversion area with sloped ceiling and limited space constraints, noting existing structural elements and electrical access points that would impact installation options. Documented current system performance issues and customer requirements to develop appropriate HVAC replacement recommendations.
Nick B.
Nick B. Checked in
Conducted a comprehensive evaluation of inadequate central air system for second floor space and assessed feasibility of mini-split installation as supplemental or replacement solution. Inspected attic conversion area with sloped ceiling and limited space constraints, noting existing structural elements and electrical access points that would impact installation options. Documented current system performance issues and customer requirements to develop appropriate HVAC replacement recommendations.
Haubstadt, IN 47639
Completed quarterly maintenance service with replacement of 16x25x5 air filter. Inspected furnace control board with flame sensor and verified proper operation. Examined and confirmed integrity of PVC venting system and electrical connections in utility space. All components functioning correctly after service.
Completed quarterly maintenance service with replacement of 16x25x5 air filter. Inspected furnace control board with flame sensor and verified proper operation. Examined and confirmed integrity of PVC venting system and electrical connections in utility space. All components functioning correctly after service.
Brent D.
Brent D. Checked in
Completed quarterly maintenance service with replacement of 16x25x5 air filter. Inspected furnace control board with flame sensor and verified proper operation. Examined and confirmed integrity of PVC venting system and electrical connections in utility space. All components functioning correctly after service.
Haubstadt, IN 47639
Completed annual maintenance on 4-year-old HVAC system as per Platinum Level service agreement. Inspected and replaced 20x25x5 filter during this first scheduled visit of the year. Verified proper electrical connections including safety ground wire installation and examined water heater and associated mechanical components in utility area.
Completed annual maintenance on 4-year-old HVAC system as per Platinum Level service agreement. Inspected and replaced 20x25x5 filter during this first scheduled visit of the year. Verified proper electrical connections including safety ground wire installation and examined water heater and associated mechanical components in utility area.
Jeff J.
Jeff J. Checked in
Completed annual maintenance on 4-year-old HVAC system as per Platinum Level service agreement. Inspected and replaced 20x25x5 filter during this first scheduled visit of the year. Verified proper electrical connections including safety ground wire installation and examined water heater and associated mechanical components in utility area.
Haubstadt, IN 47639
Performed annual Gold Level maintenance on a mini-split system (installed 7/2025). Inspected two outdoor condenser units which showed significant snow accumulation around bases that could restrict proper airflow. Cleared snow from units and surrounding area to ensure adequate ventilation. System functioning properly after service; recommended maintaining clear perimeter around outdoor units during winter months.
Performed annual Gold Level maintenance on a mini-split system (installed 7/2025). Inspected two outdoor condenser units which showed significant snow accumulation around bases that could restrict proper airflow. Cleared snow from units and surrounding area to ensure adequate ventilation. System functioning properly after service; recommended maintaining clear perimeter around outdoor units during winter months.
Jacob D.
Jacob D. Checked in
Performed annual Gold Level maintenance on a mini-split system (installed 7/2025). Inspected two outdoor condenser units which showed significant snow accumulation around bases that could restrict proper airflow. Cleared snow from units and surrounding area to ensure adequate ventilation. System functioning properly after service; recommended maintaining clear perimeter around outdoor units during winter months.
Haubstadt, IN 47639
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.