Ferdinand, IN HVAC, Plumbing & Electrical Services
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Heating, AC, Plumbing & Electrical Services in Ferdinand, IN

 

Ferdinand Service Overview

  • Serving Ferdinand & 47532: A+ Derr Heating and Cooling provides electrical, air conditioning, plumbing, and heating service throughout Ferdinand.

  • Established Housing: Much of the housing around the 47532 area dates to the 1970s and 1980s.

  • Four Home Services: A+ Derr provides heating, cooling, plumbing, and electrical work under one roof.

 

Ferdinand has an identity that is easy to recognize, from its German heritage to the Monastery of the Immaculate Conception overlooking the community. All around the 47532 area, homeowners also depend on a collection of systems behind the scenes every day. A+ Derr Heating and Cooling provides electrical, air conditioning, plumbing, and heating service when one of those systems needs repair, maintenance, replacement, or installation. Call (812) 200-0727 to schedule service for your Ferdinand home.

“I was very happy with the service from A+Derr today. Our technician Isaac showed up on time, was able to flush our hot water tank with no complications and left no mess. I always refer A+Derr when anyone asks for a heating and cooling recommendation.”

— Deanna H

Home Service With a Ferdinand Point of View

The Monastery of the Immaculate Conception may be Ferdinand’s most recognizable landmark, but it is only one piece of the community. German heritage continues to shape local traditions, and events throughout the year give Ferdinand a character that feels different from the other places we serve.

Most of the housing around the 47532 area consists of detached single-family homes, with much of it dating to the 1970s and 1980s. That gives us useful background when we arrive, but decades leave plenty of time for equipment and systems to change. We want to know what is in your house now, what you have noticed, and what you need from it today.

Electrical Work for What Your Ferdinand Home Needs Now

Electrical service is not always about fixing something that has stopped working. Homeowners add equipment and make changes over time. You may need more outlets, updated lighting, a generator, surge protection, or an EV charger. Other times, a circuit or electrical component develops a problem and needs attention.

Electrical projects we handle include:

A+ Derr provides electrical repair and installation throughout Ferdinand. With much of the local housing dating from the 1970s and 1980s, we do not assume the electrical system we find today matches what was originally installed. We look at the system you have and what you want to accomplish, then determine what the job requires.

Need an experienced electrician in Ferdinand? Call (812) 200-0727 to get a clear quote!

AC Service During a Busy Ferdinand Summer

Summer in Ferdinand has its own local rhythm. Heimatfest brings live music, a BBQ contest, car show, 5K, and more to town. Those warmer days are also when air conditioners and heat pumps around the 47532 area tend to get some of their hardest use.

You may need cooling service when:

A+ Derr provides AC repair, installation, and maintenance along with ductless mini-splits, heat pumps, heat pump repair and maintenance, indoor air quality services, and emergency cooling. When you come home after a day around Ferdinand, you expect the house to feel comfortable. If it does not, we can find out what is keeping the cooling system from doing its job and work toward getting that comfort back.

Need AC Service in Ferdinand? Call (812) 200-0727 to schedule service.

“I had a great experience using this company. From the quote to the install and even the follow up call the day after, everyone was so nice and professional. AC system that was installed has kept our home at perfect temperature. I can’t say enough about this company and the Lennox system.”

— Brad B

Plumbing Help When Your Normal Routine Gets Interrupted

You usually notice plumbing problems because something you use every day suddenly does not work the way it should. The water heater stops delivering enough hot water. A drain keeps getting slower. The toilet develops a problem, or the garbage disposal stops working.

Ferdinand homeowners can call us for:

Ferdinand State Forest is one of the familiar places for getting outdoors around the community. Back at home, however, you expect the basics to work without requiring much thought. A+ Derr provides plumbing repair, installation, and maintenance throughout 47532. Whether the call starts with the water heater or a problem elsewhere in the plumbing system, we work to get the affected part of your house back to normal.

Request Plumbing Service! Call A+ Derr at (812) 200-0727

“Nick Besheares was great. He was knowledgeable in tankkess wster heaters. Timely, kind snd profesdional.”

— Rick B

When Ferdinand Starts Thinking About Heat Again

The Ferdinand Folk Festival brings music and arts into the local calendar, but eventually cooler days start changing what homeowners need inside the house. That first switch back to heat can also reveal a furnace, boiler, heat pump, or ductless system that is not ready to cooperate.

Call us when:

A+ Derr provides heating repair, installation, replacement, and maintenance. We work on furnaces, boilers, heat pumps, ductless mini-splits, and geothermal systems, along with indoor air quality equipment. When the temperature changes outside, the important thing inside is knowing the heating equipment will respond when you ask it to.

Schedule Heating Service today! Call A+ Derr at (812) 200-0727 or contact us online today.

Solving Ferdinand Home Issues

Problem: A circuit or electrical component develops a problem and needs attention.

Solution: A+ Derr provides electrical repair and installation throughout Ferdinand, including circuits and outlets, lighting, panel and meter upgrades, electrical service upgrades, generator installation, surge protection, EV charger installation, and commercial lighting.

Problem: Air conditioners and heat pumps around the 47532 area tend to get some of their hardest use during warmer days.

Solution: A+ Derr provides AC repair, installation, and maintenance along with ductless mini-splits, heat pumps, heat pump repair and maintenance, indoor air quality services, and emergency cooling.

Problem: Plumbing problems interrupt your normal routine when the water heater, drain, toilet, or garbage disposal does not work the way it should.

Solution: A+ Derr provides plumbing repair, installation, and maintenance throughout 47532, along with water heaters, tankless water heaters, sewer and drain service, toilets, garbage disposals, sump pumps, piping and repiping, and water filtration.

Problem: The first switch back to heat can reveal a furnace, boiler, heat pump, or ductless system that is not ready to cooperate.

Solution: A+ Derr provides heating repair, installation, replacement, and maintenance for furnaces, boilers, heat pumps, ductless mini-splits, and geothermal systems, along with indoor air quality equipment.

One Team Through a Year in Ferdinand

Later in the year, the Ferdinand Christkindlmarkt brings its Bavarian-style Christmas market to the community, another local tradition rooted in Ferdinand’s German heritage. By that point, the list of things your home has needed during the year may look completely different from where it started.

Maybe spring brought an electrical project. Summer put the AC to work. A plumbing issue appeared somewhere in between, and colder weather eventually brought the heating system back into focus. A+ Derr works across all four areas, so you can call the same company when the type of job changes.

That also includes emergency heating and cooling when a loss of comfort cannot wait. You do not have to figure out what part has failed before you call. Tell us what you are experiencing, and we can start there.

Get Help With Your Ferdinand Home

When something around your Ferdinand home needs attention, you do not have to determine whether it is a minor repair or a larger issue before reaching out. A+ Derr Heating and Cooling provides electrical work, AC service, plumbing repairs, and heating service for homeowners throughout Ferdinand and the 47532 area.

We can help you understand what is happening and identify the next step for your home. Call (812) 200-0727 or contact us online to schedule service.

FAQs for Homeowners in Ferdinand, IN

A+ Derr provides heating repair, installation, replacement, and maintenance. We work on furnaces, boilers, heat pumps, ductless mini-splits, and geothermal systems, along with indoor air quality equipment.

A+ Derr provides plumbing repair, installation, and maintenance throughout 47532, along with water heaters, tankless water heaters, sewer and drain service, toilets, garbage disposals, sump pumps, piping and repiping, and water filtration.

A+ Derr provides AC repair, installation, and maintenance along with ductless mini-splits, heat pumps, heat pump repair and maintenance, indoor air quality services, and emergency cooling.

A+ Derr provides electrical repair and installation throughout Ferdinand, including circuits and outlets, lighting repair and installation, panel and meter upgrades, electrical service upgrades, generator installation, surge protection, EV charger installation, general electrical repairs, and commercial lighting.

A+ Derr provides emergency heating and cooling when a loss of comfort cannot wait.

Page Updated on September 22, 2026

Recent Jobs and Reviews in Ferdinand, IN

Ferdinand, IN at a glance

A+ Derr Heating & Cooling has completed 16 jobs in Ferdinand, IN between December 2025 and August 2026.

The most recent job was on August 3, 2026.

A+ Derr Heating & Cooling has completed 16 jobs in Ferdinand, IN in the last 12 months.

Job Locations and Reviews

Ferdinand, IN - Successfully installed a Navien tankless water heater in basement utility area, mounted securely to concrete block wall with proper copper piping connections routed to ceiling joists and wall-mounted brackets. Unit is fully operational with digital display functioning, includes Energy Star certification, 6-year parts warranty, and 1-year labor warranty.
Isaac G.
Isaac G. Checked in
Successfully installed a Navien tankless water heater in basement utility area, mounted securely to concrete block wall with proper copper piping connections routed to ceiling joists and wall-mounted brackets. Unit is fully operational with digital display functioning, includes Energy Star certification, 6-year parts warranty, and 1-year labor warranty.
Ferdinand, IN 47532
Completed Platinum Level maintenance on 3-year-old HVAC system during second annual visit. Performed comprehensive inspection of indoor air handler unit and outdoor condensing unit, including blower assembly, heat exchanger, control boards, electrical connections, and capacitor. Replaced 16x25x5 air filter, verified all wiring connections and components are functioning properly, and documented system condition with photographs. System is operating within normal parameters and customer is due for membership renewal.
Completed Platinum Level maintenance on 3-year-old HVAC system during second annual visit. Performed comprehensive inspection of indoor air handler unit and outdoor condensing unit, including blower assembly, heat exchanger, control boards, electrical connections, and capacitor. Replaced 16x25x5 air filter, verified all wiring connections and components are functioning properly, and documented system condition with photographs. System is operating within normal parameters and customer is due for membership renewal.
Christian C.
Christian C. Checked in
Completed Platinum Level maintenance on 3-year-old HVAC system during second annual visit. Performed comprehensive inspection of indoor air handler unit and outdoor condensing unit, including blower assembly, heat exchanger, control boards, electrical connections, and capacitor. Replaced 16x25x5 air filter, verified all wiring connections and components are functioning properly, and documented system condition with photographs. System is operating within normal parameters and customer is due for membership renewal.
Ferdinand, IN 47532
Responded to no cooling complaint on 2-year-old residential HVAC system with indoor temperatures in upper 80s. Performed diagnostic inspection of outdoor condensing unit and refrigerant line connections. Identified issue with liquid line requiring repair at connection point near outdoor unit. Follow-up service scheduled to complete liquid line repair with advance notice to customer.
Responded to no cooling complaint on 2-year-old residential HVAC system with indoor temperatures in upper 80s. Performed diagnostic inspection of outdoor condensing unit and refrigerant line connections. Identified issue with liquid line requiring repair at connection point near outdoor unit. Follow-up service scheduled to complete liquid line repair with advance notice to customer.
Francis I.
Francis I. Checked in
Responded to no cooling complaint on 2-year-old residential HVAC system with indoor temperatures in upper 80s. Performed diagnostic inspection of outdoor condensing unit and refrigerant line connections. Identified issue with liquid line requiring repair at connection point near outdoor unit. Follow-up service scheduled to complete liquid line repair with advance notice to customer.
Ferdinand, IN 47532
Conducted follow-up assessment for water heater replacement options in basement location. Evaluated existing mechanical infrastructure including current water heater installation located under stairs, plumbing supply and drainage lines, gas connections, and available space for upgraded equipment. Documented basement ceiling area showing existing PVC water supply lines with insulation, drainage piping, ductwork, and structural joists to determine routing requirements for new installation. Assessed utility room configuration with concrete block walls and existing mechanical equipment to verify clearances and ventilation requirements. Prepared comprehensive estimates for two replacement scenarios: traditional tank-style gas water heater and tankless gas water heater system, both sized appropriately for increased capacity needs. Recommendations include removal of current under-stairs unit and installation of larger capacity system in basement location with proper venting, gas line modifica
Conducted follow-up assessment for water heater replacement options in basement location. Evaluated existing mechanical infrastructure including current water heater installation located under stairs, plumbing supply and drainage lines, gas connections, and available space for upgraded equipment. Documented basement ceiling area showing existing PVC water supply lines with insulation, drainage piping, ductwork, and structural joists to determine routing requirements for new installation. Assessed utility room configuration with concrete block walls and existing mechanical equipment to verify clearances and ventilation requirements. Prepared comprehensive estimates for two replacement scenarios: traditional tank-style gas water heater and tankless gas water heater system, both sized appropriately for increased capacity needs. Recommendations include removal of current under-stairs unit and installation of larger capacity system in basement location with proper venting, gas line modifica
Kyle D.
Kyle D. Checked in
Conducted follow-up assessment for water heater replacement options in basement location. Evaluated existing mechanical infrastructure including current water heater installation located under stairs, plumbing supply and drainage lines, gas connections, and available space for upgraded equipment. Documented basement ceiling area showing existing PVC water supply lines with insulation, drainage piping, ductwork, and structural joists to determine routing requirements for new installation. Assessed utility room configuration with concrete block walls and existing mechanical equipment to verify clearances and ventilation requirements. Prepared comprehensive estimates for two replacement scenarios: traditional tank-style gas water heater and tankless gas water heater system, both sized appropriately for increased capacity needs. Recommendations include removal of current under-stairs unit and installation of larger capacity system in basement location with proper venting, gas line modifica
Ferdinand, IN 47532
# HVAC Maintenance Report

Completed first annual planned maintenance visit on a one-year-old HVAC system. Performed comprehensive inspection of indoor air handler unit, verified proper leveling of equipment using torpedo level, and inspected all mechanical and electrical components including blower motor assembly, refrigerant lines, and wiring connections with twist-on connectors. Replaced 20x25x5 air filter per maintenance schedule. Conducted outdoor condensing unit inspection and took electrical measurements using clamp meter to verify proper amperage draw and system performance. All components found operating within normal parameters with no deficiencies noted.
# HVAC Maintenance Report

Completed first annual planned maintenance visit on a one-year-old HVAC system. Performed comprehensive inspection of indoor air handler unit, verified proper leveling of equipment using torpedo level, and inspected all mechanical and electrical components including blower motor assembly, refrigerant lines, and wiring connections with twist-on connectors. Replaced 20x25x5 air filter per maintenance schedule. Conducted outdoor condensing unit inspection and took electrical measurements using clamp meter to verify proper amperage draw and system performance. All components found operating within normal parameters with no deficiencies noted.
Tyler C.
Tyler C. Checked in
# HVAC Maintenance Report Completed first annual planned maintenance visit on a one-year-old HVAC system. Performed comprehensive inspection of indoor air handler unit, verified proper leveling of equipment using torpedo level, and inspected all mechanical and electrical components including blower motor assembly, refrigerant lines, and wiring connections with twist-on connectors. Replaced 20x25x5 air filter per maintenance schedule. Conducted outdoor condensing unit inspection and took electrical measurements using clamp meter to verify proper amperage draw and system performance. All components found operating within normal parameters with no deficiencies noted.
Ferdinand, IN 47532
Completed first scheduled quarterly maintenance visit on HVAC system. Accessed unit using key from designated location, performed comprehensive filter inspection, and documented electrical terminal connections and wiring configurations with photos showing proper wire terminations and grounding connections in good condition.
Completed first scheduled quarterly maintenance visit on HVAC system. Accessed unit using key from designated location, performed comprehensive filter inspection, and documented electrical terminal connections and wiring configurations with photos showing proper wire terminations and grounding connections in good condition.
Tyler C.
Tyler C. Checked in
Completed first scheduled quarterly maintenance visit on HVAC system. Accessed unit using key from designated location, performed comprehensive filter inspection, and documented electrical terminal connections and wiring configurations with photos showing proper wire terminations and grounding connections in good condition.
Ferdinand, IN 47532
Completed planned maintenance on residential air conditioning system. Replaced heavily soiled 20x20x5 air filters that showed significant dust and debris accumulation, impacting system airflow and efficiency. Performed standard maintenance inspection of outdoor condensing unit, which is approximately 3 years old and showing normal wear patterns with some dirt buildup on exterior panels.
Completed planned maintenance on residential air conditioning system. Replaced heavily soiled 20x20x5 air filters that showed significant dust and debris accumulation, impacting system airflow and efficiency. Performed standard maintenance inspection of outdoor condensing unit, which is approximately 3 years old and showing normal wear patterns with some dirt buildup on exterior panels.
Michael H.
Michael H. Checked in
Completed planned maintenance on residential air conditioning system. Replaced heavily soiled 20x20x5 air filters that showed significant dust and debris accumulation, impacting system airflow and efficiency. Performed standard maintenance inspection of outdoor condensing unit, which is approximately 3 years old and showing normal wear patterns with some dirt buildup on exterior panels.
Ferdinand, IN 47532
Completed follow-up service visit to investigate operational concerns and verify system charge on HVAC unit. Performed comprehensive diagnostic testing using onboard system interface, running cooling maximum rate manual test to evaluate compressor performance and refrigerant charge levels. Analysis revealed subcooling reading of 0.6°F, indicating critically low refrigerant charge well below manufacturer specifications. Monitored compressor operating parameters including frequency at 530 Hz, input voltage at 291.0V, input current at 6.602A, and compressor current at 7.130A. Documented coil temperature at 80.3°F and heat sink temperature at 93.2°F during test cycle. Verified all relay statuses and confirmed system inputs were functioning properly with link relay closed and all heating/cooling stage relays in appropriate positions. Captured diagnostic screen images showing real-time operational data for documentation and further analysis. System requires immediate attention for refrigeran
Completed follow-up service visit to investigate operational concerns and verify system charge on HVAC unit. Performed comprehensive diagnostic testing using onboard system interface, running cooling maximum rate manual test to evaluate compressor performance and refrigerant charge levels. Analysis revealed subcooling reading of 0.6°F, indicating critically low refrigerant charge well below manufacturer specifications. Monitored compressor operating parameters including frequency at 530 Hz, input voltage at 291.0V, input current at 6.602A, and compressor current at 7.130A. Documented coil temperature at 80.3°F and heat sink temperature at 93.2°F during test cycle. Verified all relay statuses and confirmed system inputs were functioning properly with link relay closed and all heating/cooling stage relays in appropriate positions. Captured diagnostic screen images showing real-time operational data for documentation and further analysis. System requires immediate attention for refrigeran
Tyler C.
Tyler C. Checked in
Completed follow-up service visit to investigate operational concerns and verify system charge on HVAC unit. Performed comprehensive diagnostic testing using onboard system interface, running cooling maximum rate manual test to evaluate compressor performance and refrigerant charge levels. Analysis revealed subcooling reading of 0.6°F, indicating critically low refrigerant charge well below manufacturer specifications. Monitored compressor operating parameters including frequency at 530 Hz, input voltage at 291.0V, input current at 6.602A, and compressor current at 7.130A. Documented coil temperature at 80.3°F and heat sink temperature at 93.2°F during test cycle. Verified all relay statuses and confirmed system inputs were functioning properly with link relay closed and all heating/cooling stage relays in appropriate positions. Captured diagnostic screen images showing real-time operational data for documentation and further analysis. System requires immediate attention for refrigeran
Ferdinand, IN 47532
Ferdinand, IN - Responded to no heat call on 6-year-old system with no airflow and complete system failure. Upon arrival, performed diagnostic assessment to determine cause of non-operation. Verified no power to unit and traced issue to system lockout condition. Successfully restored heating operation and confirmed proper airflow through all registers.
Ricky B.
Ricky B. Checked in
Responded to no heat call on 6-year-old system with no airflow and complete system failure. Upon arrival, performed diagnostic assessment to determine cause of non-operation. Verified no power to unit and traced issue to system lockout condition. Successfully restored heating operation and confirmed proper airflow through all registers.
Ferdinand, IN 47532
Performed follow-up inspection on recently installed HVAC system following customer report of alarm 430 (OU inverter compressor start up fail). Verified system status and documented active alerts including Alert code 433 (Compressor Overcurrent) on the thermostat display. Diagnosed issue with outdoor unit inverter compressor and performed necessary adjustments to resolve startup failure and overcurrent conditions.
Performed follow-up inspection on recently installed HVAC system following customer report of alarm 430 (OU inverter compressor start up fail). Verified system status and documented active alerts including Alert code 433 (Compressor Overcurrent) on the thermostat display. Diagnosed issue with outdoor unit inverter compressor and performed necessary adjustments to resolve startup failure and overcurrent conditions.
Brent D.
Brent D. Checked in
Performed follow-up inspection on recently installed HVAC system following customer report of alarm 430 (OU inverter compressor start up fail). Verified system status and documented active alerts including Alert code 433 (Compressor Overcurrent) on the thermostat display. Diagnosed issue with outdoor unit inverter compressor and performed necessary adjustments to resolve startup failure and overcurrent conditions.
Ferdinand, IN 47532
Performed scheduled Gold Level maintenance on 6-year-old HVAC system (second visit). Inspected evaporator coil which showed signs of condensation accumulation, and examined motor assembly with cooling fins. Replaced 20x25x5 home filter and documented component conditions with photos for service record.
Performed scheduled Gold Level maintenance on 6-year-old HVAC system (second visit). Inspected evaporator coil which showed signs of condensation accumulation, and examined motor assembly with cooling fins. Replaced 20x25x5 home filter and documented component conditions with photos for service record.
Francis I.
Francis I. Checked in
Performed scheduled Gold Level maintenance on 6-year-old HVAC system (second visit). Inspected evaporator coil which showed signs of condensation accumulation, and examined motor assembly with cooling fins. Replaced 20x25x5 home filter and documented component conditions with photos for service record.
Ferdinand, IN 47532
Ferdinand, IN - Successfully installed a 3-ton mini-split system with 3 indoor heads as part of a RED financing package. Mounted one air handler on an upper-level room wall with proper clearance and alignment. System was fully tested and is operating within manufacturer specifications.
Adam M.
Adam M. Checked in
Successfully installed a 3-ton mini-split system with 3 indoor heads as part of a RED financing package. Mounted one air handler on an upper-level room wall with proper clearance and alignment. System was fully tested and is operating within manufacturer specifications.
Ferdinand, IN 47532
Conducted maintenance visit and consulted with customer regarding mini split installation options for upstairs area. Inspected both interior space (home office/gaming room) and exterior access points including basement entrance with concrete stairwell. Customer expressed interest in cooling solution for second floor.
Conducted maintenance visit and consulted with customer regarding mini split installation options for upstairs area. Inspected both interior space (home office/gaming room) and exterior access points including basement entrance with concrete stairwell. Customer expressed interest in cooling solution for second floor.
Francis I.
Francis I. Checked in
Conducted maintenance visit and consulted with customer regarding mini split installation options for upstairs area. Inspected both interior space (home office/gaming room) and exterior access points including basement entrance with concrete stairwell. Customer expressed interest in cooling solution for second floor.
Ferdinand, IN 47532
Responded to no heat call for 9-10 year old system. Diagnostic testing with infrared thermometer confirmed cold air flowing through vents. Removed and replaced faulty ignitor assembly which was preventing proper heating function. System now operating correctly with normal temperature output.
Responded to no heat call for 9-10 year old system. Diagnostic testing with infrared thermometer confirmed cold air flowing through vents. Removed and replaced faulty ignitor assembly which was preventing proper heating function. System now operating correctly with normal temperature output.
Francis I.
Francis I. Checked in
Responded to no heat call for 9-10 year old system. Diagnostic testing with infrared thermometer confirmed cold air flowing through vents. Removed and replaced faulty ignitor assembly which was preventing proper heating function. System now operating correctly with normal temperature output.
Ferdinand, IN 47532
Performed scheduled 6-month maintenance including replacement of 16x25x5 filter. Inspected PCB control board and connections for proper operation. Investigated noise complaint from outdoor unit, finding no abnormal operating conditions. Verified thermostat functionality with system maintaining proper temperature (74°) and humidity levels (56%).
Performed scheduled 6-month maintenance including replacement of 16x25x5 filter. Inspected PCB control board and connections for proper operation. Investigated noise complaint from outdoor unit, finding no abnormal operating conditions. Verified thermostat functionality with system maintaining proper temperature (74°) and humidity levels (56%).
Jacob D.
Jacob D. Checked in
Performed scheduled 6-month maintenance including replacement of 16x25x5 filter. Inspected PCB control board and connections for proper operation. Investigated noise complaint from outdoor unit, finding no abnormal operating conditions. Verified thermostat functionality with system maintaining proper temperature (74°) and humidity levels (56%).
Ferdinand, IN 47532
Completed second annual maintenance visit on 9-month-old HVAC system. Replaced 20x25x5 filters, performed standard system inspection with panel access to verify proper operation and connections. Customer confirmed renewal of annual maintenance agreement.
Completed second annual maintenance visit on 9-month-old HVAC system. Replaced 20x25x5 filters, performed standard system inspection with panel access to verify proper operation and connections. Customer confirmed renewal of annual maintenance agreement.
Francis I.
Francis I. Checked in
Completed second annual maintenance visit on 9-month-old HVAC system. Replaced 20x25x5 filters, performed standard system inspection with panel access to verify proper operation and connections. Customer confirmed renewal of annual maintenance agreement.
Ferdinand, IN 47532
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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.