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

Completed Platinum Level monthly maintenance on single HVAC system. Performed comprehensive system diagnostics using clamp meter to verify electrical performance, recording amperage and voltage readings at the outdoor unit. Inspected and documented electrical connections, refrigerant line conditions, and all wiring terminations within the service panel. Verified proper operation of all system components. Checked and documented the 16x20x4 air filter installation in the attic filter housing, confirming proper airflow direction and filter fit. All system parameters found within normal operating specifications, and unit is functioning as designed.
Completed Platinum Level monthly maintenance on single HVAC system. Performed comprehensive system diagnostics using clamp meter to verify electrical performance, recording amperage and voltage readings at the outdoor unit. Inspected and documented electrical connections, refrigerant line conditions, and all wiring terminations within the service panel. Verified proper operation of all system components. Checked and documented the 16x20x4 air filter installation in the attic filter housing, confirming proper airflow direction and filter fit. All system parameters found within normal operating specifications, and unit is functioning as designed.
Tyler C.
Tyler C. Checked in
Completed Platinum Level monthly maintenance on single HVAC system. Performed comprehensive system diagnostics using clamp meter to verify electrical performance, recording amperage and voltage readings at the outdoor unit. Inspected and documented electrical connections, refrigerant line conditions, and all wiring terminations within the service panel. Verified proper operation of all system components. Checked and documented the 16x20x4 air filter installation in the attic filter housing, confirming proper airflow direction and filter fit. All system parameters found within normal operating specifications, and unit is functioning as designed.
Boonville, IN 47601
Completed Platinum Level maintenance on a 7-year-old single HVAC system during the second annual visit. Performed comprehensive inspection of furnace unit including heat exchanger, blower motor assembly, refrigerant lines, and electrical components. Replaced 20x20x2 air filter, verified all connections and wiring, and confirmed system operational status. All components found to be intact and functional with normal operational wear. Customer due for service agreement renewal.
Completed Platinum Level maintenance on a 7-year-old single HVAC system during the second annual visit. Performed comprehensive inspection of furnace unit including heat exchanger, blower motor assembly, refrigerant lines, and electrical components. Replaced 20x20x2 air filter, verified all connections and wiring, and confirmed system operational status. All components found to be intact and functional with normal operational wear. Customer due for service agreement renewal.
Christian C.
Christian C. Checked in
Completed Platinum Level maintenance on a 7-year-old single HVAC system during the second annual visit. Performed comprehensive inspection of furnace unit including heat exchanger, blower motor assembly, refrigerant lines, and electrical components. Replaced 20x20x2 air filter, verified all connections and wiring, and confirmed system operational status. All components found to be intact and functional with normal operational wear. Customer due for service agreement renewal.
Boonville, IN 47601
Completed first scheduled three-month maintenance visit for commercial furnace installation (CFI). Performed comprehensive system inspection including verification of control board operation, electrical connections, and structural mounting alignment. All components found to be functioning within normal parameters with proper vertical alignment confirmed on mechanical equipment installation.
Completed first scheduled three-month maintenance visit for commercial furnace installation (CFI). Performed comprehensive system inspection including verification of control board operation, electrical connections, and structural mounting alignment. All components found to be functioning within normal parameters with proper vertical alignment confirmed on mechanical equipment installation.
Tyler C.
Tyler C. Checked in
Completed first scheduled three-month maintenance visit for commercial furnace installation (CFI). Performed comprehensive system inspection including verification of control board operation, electrical connections, and structural mounting alignment. All components found to be functioning within normal parameters with proper vertical alignment confirmed on mechanical equipment installation.
Boonville, IN 47601
# HVAC Maintenance Report

Completed comprehensive Platinum Level preventive maintenance service on a three-system residential HVAC installation. Performed thorough inspection and servicing of all outdoor condenser units, including a Lennox system and two additional units positioned at separate locations around the property.

Conducted complete system diagnostics on each unit, checking refrigerant pressures, electrical connections, and component operation. Cleaned condenser coils using appropriate equipment to remove debris and ensure optimal heat transfer efficiency. Inspected and tested all electrical disconnects and verified proper voltage and amperage readings across all three systems.

Evaluated refrigerant line insulation integrity and checked for any signs of wear or damage on copper line sets. Verified proper drainage from condensate systems and ensured all mounting pads were level and stable. Tested capacitors and contactors for proper operation on each unit.

Documented filte
# HVAC Maintenance Report

Completed comprehensive Platinum Level preventive maintenance service on a three-system residential HVAC installation. Performed thorough inspection and servicing of all outdoor condenser units, including a Lennox system and two additional units positioned at separate locations around the property.

Conducted complete system diagnostics on each unit, checking refrigerant pressures, electrical connections, and component operation. Cleaned condenser coils using appropriate equipment to remove debris and ensure optimal heat transfer efficiency. Inspected and tested all electrical disconnects and verified proper voltage and amperage readings across all three systems.

Evaluated refrigerant line insulation integrity and checked for any signs of wear or damage on copper line sets. Verified proper drainage from condensate systems and ensured all mounting pads were level and stable. Tested capacitors and contactors for proper operation on each unit.

Documented filte
Michael H.
Michael H. Checked in
# HVAC Maintenance Report Completed comprehensive Platinum Level preventive maintenance service on a three-system residential HVAC installation. Performed thorough inspection and servicing of all outdoor condenser units, including a Lennox system and two additional units positioned at separate locations around the property. Conducted complete system diagnostics on each unit, checking refrigerant pressures, electrical connections, and component operation. Cleaned condenser coils using appropriate equipment to remove debris and ensure optimal heat transfer efficiency. Inspected and tested all electrical disconnects and verified proper voltage and amperage readings across all three systems. Evaluated refrigerant line insulation integrity and checked for any signs of wear or damage on copper line sets. Verified proper drainage from condensate systems and ensured all mounting pads were level and stable. Tested capacitors and contactors for proper operation on each unit. Documented filte
Boonville, IN 47601
Conducted comprehensive electrical assessment for standby generator installation at recently purchased residential property. Evaluated existing all-electric service with dual electrical panels in basement utility area, documenting current breaker configuration, available capacity, and conduit routing for future generator integration. Provided detailed estimate for generator system installation including transfer switch placement, load calculation for essential circuits, and electrical service modifications required to accommodate propane-fueled backup power system once fuel source is established on property.
Conducted comprehensive electrical assessment for standby generator installation at recently purchased residential property. Evaluated existing all-electric service with dual electrical panels in basement utility area, documenting current breaker configuration, available capacity, and conduit routing for future generator integration. Provided detailed estimate for generator system installation including transfer switch placement, load calculation for essential circuits, and electrical service modifications required to accommodate propane-fueled backup power system once fuel source is established on property.
Nick B.
Nick B. Checked in
Conducted comprehensive electrical assessment for standby generator installation at recently purchased residential property. Evaluated existing all-electric service with dual electrical panels in basement utility area, documenting current breaker configuration, available capacity, and conduit routing for future generator integration. Provided detailed estimate for generator system installation including transfer switch placement, load calculation for essential circuits, and electrical service modifications required to accommodate propane-fueled backup power system once fuel source is established on property.
Boonville, IN 47601
Completed scheduled air conditioning tune-up and preventative maintenance on residential AC system. Performed comprehensive system inspection, measured supply air temperature at 76.2°F at plenum, verified proper airflow through ductwork, and assessed outdoor condenser unit operation. All components found operating within normal parameters with no deficiencies noted at time of service.
Completed scheduled air conditioning tune-up and preventative maintenance on residential AC system. Performed comprehensive system inspection, measured supply air temperature at 76.2°F at plenum, verified proper airflow through ductwork, and assessed outdoor condenser unit operation. All components found operating within normal parameters with no deficiencies noted at time of service.
Michael H.
Michael H. Checked in
Completed scheduled air conditioning tune-up and preventative maintenance on residential AC system. Performed comprehensive system inspection, measured supply air temperature at 76.2°F at plenum, verified proper airflow through ductwork, and assessed outdoor condenser unit operation. All components found operating within normal parameters with no deficiencies noted at time of service.
Boonville, IN 47601
Boonville, IN - Responded to no-cooling complaint on residential HVAC system with inadequate airflow and inability to maintain setpoint temperature. Upon inspection, found system running continuously with thermostat reading 75°F while set to 70°F and minimal airflow at registers. Diagnosed restricted airflow condition affecting cooling capacity and system performance, requiring further evaluation of ductwork, blower motor operation, and potential refrigerant circuit issues common in aging equipment.
Cameron N.
Cameron N. Checked in
Responded to no-cooling complaint on residential HVAC system with inadequate airflow and inability to maintain setpoint temperature. Upon inspection, found system running continuously with thermostat reading 75°F while set to 70°F and minimal airflow at registers. Diagnosed restricted airflow condition affecting cooling capacity and system performance, requiring further evaluation of ductwork, blower motor operation, and potential refrigerant circuit issues common in aging equipment.
Boonville, IN 47601
Boonville, IN - Responded to service call regarding ongoing condensation issues on previously wrapped ductwork in basement mechanical space. Upon inspection, found that existing insulation wrap had become saturated with trapped moisture, causing sagging and water leakage from the duct system. Documented current condition of ductwork, insulation, and surrounding area including exposed ceiling joists and utility infrastructure. Assessed three-year-old HVAC system for proper operation and identified inadequate moisture barrier installation as contributing factor to continued condensation problems.
Danny M.
Danny M. Checked in
Responded to service call regarding ongoing condensation issues on previously wrapped ductwork in basement mechanical space. Upon inspection, found that existing insulation wrap had become saturated with trapped moisture, causing sagging and water leakage from the duct system. Documented current condition of ductwork, insulation, and surrounding area including exposed ceiling joists and utility infrastructure. Assessed three-year-old HVAC system for proper operation and identified inadequate moisture barrier installation as contributing factor to continued condensation problems.
Boonville, IN 47601
Boonville, IN - Responded to no cooling complaint on residential HVAC system. Upon inspection, diagnosed failed blower motor preventing air circulation through the system. Ordered replacement blower motor to restore proper airflow and cooling operation, with estimated repair time of 120 minutes upon part arrival. System is currently non-operational until replacement component is installed. Customer payment collected in full with zero balance remaining.
Danny M.
Danny M. Checked in
Responded to no cooling complaint on residential HVAC system. Upon inspection, diagnosed failed blower motor preventing air circulation through the system. Ordered replacement blower motor to restore proper airflow and cooling operation, with estimated repair time of 120 minutes upon part arrival. System is currently non-operational until replacement component is installed. Customer payment collected in full with zero balance remaining.
Boonville, IN 47601
Completed annual Gold Level planned maintenance on 3-year-old mini-split system. Performed comprehensive inspection of outdoor condenser unit, noting dirt and debris accumulation on cooling coils behind protective wire guard. Took temperature differential readings at indoor air handler, recording supply air temperature of 58.6°F and return air temperature of 77.1°F, confirming proper cooling performance with 18.5°F temperature split. System operating within normal parameters with no immediate service requirements identified.
Completed annual Gold Level planned maintenance on 3-year-old mini-split system. Performed comprehensive inspection of outdoor condenser unit, noting dirt and debris accumulation on cooling coils behind protective wire guard. Took temperature differential readings at indoor air handler, recording supply air temperature of 58.6°F and return air temperature of 77.1°F, confirming proper cooling performance with 18.5°F temperature split. System operating within normal parameters with no immediate service requirements identified.
Michael H.
Michael H. Checked in
Completed annual Gold Level planned maintenance on 3-year-old mini-split system. Performed comprehensive inspection of outdoor condenser unit, noting dirt and debris accumulation on cooling coils behind protective wire guard. Took temperature differential readings at indoor air handler, recording supply air temperature of 58.6°F and return air temperature of 77.1°F, confirming proper cooling performance with 18.5°F temperature split. System operating within normal parameters with no immediate service requirements identified.
Boonville, IN 47601
Responded to follow-up service call for HVAC system reported as not maintaining desired temperature during extreme heat conditions. Performed comprehensive inspection of unit's electrical control panel and wiring systems in attic installation. Verified all wire connections at terminal blocks, inspected control board components including capacitors and relays for proper operation, and documented system configuration with photos of control panel and wiring harness. All electrical connections found secure with no signs of loose terminals or damaged conductors. System scheduled for additional evaluation during next available service window to monitor performance under continued high ambient temperature conditions.
Responded to follow-up service call for HVAC system reported as not maintaining desired temperature during extreme heat conditions. Performed comprehensive inspection of unit's electrical control panel and wiring systems in attic installation. Verified all wire connections at terminal blocks, inspected control board components including capacitors and relays for proper operation, and documented system configuration with photos of control panel and wiring harness. All electrical connections found secure with no signs of loose terminals or damaged conductors. System scheduled for additional evaluation during next available service window to monitor performance under continued high ambient temperature conditions.
Tyler C.
Tyler C. Checked in
Responded to follow-up service call for HVAC system reported as not maintaining desired temperature during extreme heat conditions. Performed comprehensive inspection of unit's electrical control panel and wiring systems in attic installation. Verified all wire connections at terminal blocks, inspected control board components including capacitors and relays for proper operation, and documented system configuration with photos of control panel and wiring harness. All electrical connections found secure with no signs of loose terminals or damaged conductors. System scheduled for additional evaluation during next available service window to monitor performance under continued high ambient temperature conditions.
Boonville, IN 47601
Boonville, IN - Responded to no-cool call on 12-year-old system located in garage. Upon arrival, found Nest thermostat displaying "no system detected" error with fan running intermittently but system cycling and shutting off without producing conditioned air. Verified electrical supply at breaker panel showed no tripped breakers. Accessed control board assembly and identified failed furnace control board preventing proper system communication and operation. Documented control board model information and captured photographs of existing board, wiring configuration, and terminal connections for part ordering purposes. Furnace control board requires replacement to restore system functionality. System remains non-operational pending part arrival and installation.
Francis I.
Francis I. Checked in
Responded to no-cool call on 12-year-old system located in garage. Upon arrival, found Nest thermostat displaying "no system detected" error with fan running intermittently but system cycling and shutting off without producing conditioned air. Verified electrical supply at breaker panel showed no tripped breakers. Accessed control board assembly and identified failed furnace control board preventing proper system communication and operation. Documented control board model information and captured photographs of existing board, wiring configuration, and terminal connections for part ordering purposes. Furnace control board requires replacement to restore system functionality. System remains non-operational pending part arrival and installation.
Boonville, IN 47601
Conducted follow-up site visit to assess previously incomplete work and document current system conditions. Inspection revealed significant frost accumulation on refrigerant line with deteriorated insulation, indicating potential refrigerant flow issues or inadequate insulation coverage. Photographed insulation materials and affected copper piping with ice buildup for documentation and future reference.
Conducted follow-up site visit to assess previously incomplete work and document current system conditions. Inspection revealed significant frost accumulation on refrigerant line with deteriorated insulation, indicating potential refrigerant flow issues or inadequate insulation coverage. Photographed insulation materials and affected copper piping with ice buildup for documentation and future reference.
Francis I.
Francis I. Checked in
Conducted follow-up site visit to assess previously incomplete work and document current system conditions. Inspection revealed significant frost accumulation on refrigerant line with deteriorated insulation, indicating potential refrigerant flow issues or inadequate insulation coverage. Photographed insulation materials and affected copper piping with ice buildup for documentation and future reference.
Boonville, IN 47601
Completed Platinum Level annual maintenance on a 2-year-old Lennox HVAC system consisting of indoor air handler and outdoor condensing unit. Performed comprehensive inspection of indoor unit located in utility room, including examination of all electrical connections, refrigerant lines, and PVC condensate drainage system. Replaced 20x25x5 air filter per maintenance protocol. Inspected ductwork and noted minor wear to insulation wrapping on supply plenum. Evaluated outdoor condensing unit positioned on composite pad with proper clearances maintained from landscaping. Verified electrical disconnect functionality, checked refrigerant pressures, and confirmed proper airflow through condenser coil. Cleaned condenser coil fins and removed debris from unit perimeter. Tested system operation through complete cooling cycle, confirming proper startup sequence, temperature differential, and overall performance within manufacturer specifications. All components functioning as designed with no imme
Completed Platinum Level annual maintenance on a 2-year-old Lennox HVAC system consisting of indoor air handler and outdoor condensing unit. Performed comprehensive inspection of indoor unit located in utility room, including examination of all electrical connections, refrigerant lines, and PVC condensate drainage system. Replaced 20x25x5 air filter per maintenance protocol. Inspected ductwork and noted minor wear to insulation wrapping on supply plenum. Evaluated outdoor condensing unit positioned on composite pad with proper clearances maintained from landscaping. Verified electrical disconnect functionality, checked refrigerant pressures, and confirmed proper airflow through condenser coil. Cleaned condenser coil fins and removed debris from unit perimeter. Tested system operation through complete cooling cycle, confirming proper startup sequence, temperature differential, and overall performance within manufacturer specifications. All components functioning as designed with no imme
Jeremiah H.
Jeremiah H. Checked in
Completed Platinum Level annual maintenance on a 2-year-old Lennox HVAC system consisting of indoor air handler and outdoor condensing unit. Performed comprehensive inspection of indoor unit located in utility room, including examination of all electrical connections, refrigerant lines, and PVC condensate drainage system. Replaced 20x25x5 air filter per maintenance protocol. Inspected ductwork and noted minor wear to insulation wrapping on supply plenum. Evaluated outdoor condensing unit positioned on composite pad with proper clearances maintained from landscaping. Verified electrical disconnect functionality, checked refrigerant pressures, and confirmed proper airflow through condenser coil. Cleaned condenser coil fins and removed debris from unit perimeter. Tested system operation through complete cooling cycle, confirming proper startup sequence, temperature differential, and overall performance within manufacturer specifications. All components functioning as designed with no imme
Boonville, IN 47601
Conducted comprehensive assessment of seventeen-year-old Lennox residential air conditioning system for replacement estimate. Evaluated outdoor condenser unit positioned on concrete pad and indoor vertical air handler installed in utility closet, documenting equipment specifications, installation configuration, electrical connections, and condensate drainage system to provide accurate replacement system recommendations.
Conducted comprehensive assessment of seventeen-year-old Lennox residential air conditioning system for replacement estimate. Evaluated outdoor condenser unit positioned on concrete pad and indoor vertical air handler installed in utility closet, documenting equipment specifications, installation configuration, electrical connections, and condensate drainage system to provide accurate replacement system recommendations.
James W.
James W. Checked in
Conducted comprehensive assessment of seventeen-year-old Lennox residential air conditioning system for replacement estimate. Evaluated outdoor condenser unit positioned on concrete pad and indoor vertical air handler installed in utility closet, documenting equipment specifications, installation configuration, electrical connections, and condensate drainage system to provide accurate replacement system recommendations.
Boonville, IN 47601
Conducted comprehensive HVAC system replacement estimate for existing customer with operational system seeking upgrade options. Evaluated current downflow furnace and Amana air handler configuration in basement utility space, documenting equipment specifications, clearances, and installation parameters. Assessed ductwork arrangement, base condition, and spatial requirements for high-efficiency AC/HP system compatibility, providing detailed replacement recommendations and configuration options for complete system upgrade.
Conducted comprehensive HVAC system replacement estimate for existing customer with operational system seeking upgrade options. Evaluated current downflow furnace and Amana air handler configuration in basement utility space, documenting equipment specifications, clearances, and installation parameters. Assessed ductwork arrangement, base condition, and spatial requirements for high-efficiency AC/HP system compatibility, providing detailed replacement recommendations and configuration options for complete system upgrade.
James W.
James W. Checked in
Conducted comprehensive HVAC system replacement estimate for existing customer with operational system seeking upgrade options. Evaluated current downflow furnace and Amana air handler configuration in basement utility space, documenting equipment specifications, clearances, and installation parameters. Assessed ductwork arrangement, base condition, and spatial requirements for high-efficiency AC/HP system compatibility, providing detailed replacement recommendations and configuration options for complete system upgrade.
Boonville, IN 47601
Boonville, IN - Installed ADA-compliant elongated toilet in residential bathroom corner location. Completed two-piece toilet installation with proper mounting, wax ring seal, water supply connection, and tank assembly with chrome flush lever. Verified proper operation and tested for leaks.
Isaac G.
Isaac G. Checked in
Installed ADA-compliant elongated toilet in residential bathroom corner location. Completed two-piece toilet installation with proper mounting, wax ring seal, water supply connection, and tank assembly with chrome flush lever. Verified proper operation and tested for leaks.
Boonville, IN 47601
Completed planned monthly HVAC maintenance on 13-year-old system with 20x25x5 filter configuration. Performed electrical diagnostics using digital clamp meter, recording amperage reading of 19.85 amps at outdoor condensing unit. Conducted comprehensive system inspection of both indoor and outdoor equipment, documenting equipment condition and operational parameters with diagnostic instruments.
Completed planned monthly HVAC maintenance on 13-year-old system with 20x25x5 filter configuration. Performed electrical diagnostics using digital clamp meter, recording amperage reading of 19.85 amps at outdoor condensing unit. Conducted comprehensive system inspection of both indoor and outdoor equipment, documenting equipment condition and operational parameters with diagnostic instruments.
Michael H.
Michael H. Checked in
Completed planned monthly HVAC maintenance on 13-year-old system with 20x25x5 filter configuration. Performed electrical diagnostics using digital clamp meter, recording amperage reading of 19.85 amps at outdoor condensing unit. Conducted comprehensive system inspection of both indoor and outdoor equipment, documenting equipment condition and operational parameters with diagnostic instruments.
Boonville, IN 47601
Provided estimate for conversion of existing tub/shower combination to stand-alone shower unit at residential property. Assessed current bronze-framed glass enclosure and white bathtub with failing fixtures experiencing continuous dripping issues. Presented cost-effective options for shower-only installation in same location, including fixture replacement recommendations and enclosure modifications to address deteriorating components while minimizing structural changes.
Provided estimate for conversion of existing tub/shower combination to stand-alone shower unit at residential property. Assessed current bronze-framed glass enclosure and white bathtub with failing fixtures experiencing continuous dripping issues. Presented cost-effective options for shower-only installation in same location, including fixture replacement recommendations and enclosure modifications to address deteriorating components while minimizing structural changes.
Isaac G.
Isaac G. Checked in
Provided estimate for conversion of existing tub/shower combination to stand-alone shower unit at residential property. Assessed current bronze-framed glass enclosure and white bathtub with failing fixtures experiencing continuous dripping issues. Presented cost-effective options for shower-only installation in same location, including fixture replacement recommendations and enclosure modifications to address deteriorating components while minimizing structural changes.
Boonville, IN 47601
Completed installation of 3.5-ton, 13 SEER air conditioning system with matching evaporator coil in residential basement mechanical room. The new AC system was integrated with the existing Goodman furnace unit, with the evaporator coil installed in the supply plenum above the furnace. All refrigerant lines were properly sized and insulated, condensate drainage was routed through white PVC piping with appropriate trap installation, and electrical disconnect was verified for safe operation. System was pressure tested for leaks, evacuated to manufacturer specifications, charged with proper refrigerant amount per unit nameplate, and tested for correct operation including temperature split verification across the coil.
Completed installation of 3.5-ton, 13 SEER air conditioning system with matching evaporator coil in residential basement mechanical room. The new AC system was integrated with the existing Goodman furnace unit, with the evaporator coil installed in the supply plenum above the furnace. All refrigerant lines were properly sized and insulated, condensate drainage was routed through white PVC piping with appropriate trap installation, and electrical disconnect was verified for safe operation. System was pressure tested for leaks, evacuated to manufacturer specifications, charged with proper refrigerant amount per unit nameplate, and tested for correct operation including temperature split verification across the coil.
Kent J.
Kent J. Checked in
Completed installation of 3.5-ton, 13 SEER air conditioning system with matching evaporator coil in residential basement mechanical room. The new AC system was integrated with the existing Goodman furnace unit, with the evaporator coil installed in the supply plenum above the furnace. All refrigerant lines were properly sized and insulated, condensate drainage was routed through white PVC piping with appropriate trap installation, and electrical disconnect was verified for safe operation. System was pressure tested for leaks, evacuated to manufacturer specifications, charged with proper refrigerant amount per unit nameplate, and tested for correct operation including temperature split verification across the coil.
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.