At A+ Derr Heating & Cooling, our certified and insured HVAC technicians have the knowledge and expertise to keep you comfortable, no matter the forecast. We offer a comprehensive range of installation, maintenance, repair, and replacement services and guarantee your satisfaction. Contact the experts at A+ Derr Heating & Cooling by calling (877) 914-1764 to schedule HVAC installation, maintenance, repair, or replacement services in Jeffersonville, IN.

Dependable Heating
Our HVAC technicians have experience with various heating systems, including furnaces, heat pumps, and ductless mini-splits.
Our heating services include:
- Heating Repair:Â Sudden system failures can leave you with frosty toes. Our 24/7 emergency heating services will promptly restore your comfort when your heating system fails.
- Heating Installation & Replacement:Â We will help you select the ideal heating system. We provide free estimates on replacement services and guarantee precision installations that pass inspection.
- Heating Maintenance:Â Our annual tune-up services help optimize your system to deliver superior performance and energy efficiency throughout the winter.
When you need heating services in Jeffersonville, contact A+ Derr Heating & Cooling at (877) 914-1764 to schedule service.
Top-Rated Cooling
Our highly trained cooling experts provide a complete range of cooling services customized to meet your needs. We use state-of-the-art technologies and up-to-date solutions to ensure your comfort no matter how hot it gets outside.
Our cooling services include:
- AC Repair: Our certified and insured HVAC technicians can promptly diagnose and effectively repair any issue with your cooling system. We offer 24/7 emergency cooling services and guarantee same-day service, or you don’t pay!
- AC Installation & Replacement:Â As a Lennox Premier Dealer, we offer a top-quality selection of reliable, energy-efficient cooling systems well-suited for our climate. We can help size your system and guarantee the reliability of the installation and replacement services we deliver.
- AC Maintenance: Our annual AC maintenance services will improve your cooling systems’ efficiency, reliability, and longevity.
When temperatures rise, contact our team at (877) 914-1764 to schedule a fast and reliable cooling service.
Indoor Air Quality Solutions
Improving the air quality within your home will improve your comfort, health, and the efficiency of your HVAC systems. It will also help keep your home cleaner. Our indoor air quality specialists can perform a full range of services, including duct cleaning. Depending on your specific needs and desired comfort, we can install, maintain, and repair humidifiers, dehumidifiers, and air purifiers.
Why Choose A+ Derr?
At A+ Derr, our 24/7 heating and cooling services help you enjoy the comfort, convenience, and safety you desire! Our fourth-generation, family-operated company proudly serves clients’ needs throughout the region, and we guarantee service today, or you don’t pay!
We offer free estimates on replacement quotes and service calls. And our rock solid 100% satisfaction guarantee means that if you’re unhappy with a product we installed after the first year, we’ll buy it back.
Contact A+ Derr Heating & Cooling at (877) 914-1764 to schedule fast and reliable HVAC services in Jeffersonville, IN, today!By having a regularly scheduled heating system check performed once a year, you can identify problems early on and save yourself money on costly repairs down the road. The A+ Derr team will thoroughly inspect your system, making sure everything is up to par to keep you warm all winter long.
FAQs
Why won't my central air conditioner turn on?
Many factors can cause a central AC system to fail. The first thing to check is if you have a blown breaker or tripped fuse. It can also be caused by loose wiring within your thermostat, a clogged air filter, or problems with the condensate pump.
Is a leaking boiler an emergency?
A leaking boiler is a critical emergency that requires immediate attention. Boilers can and do explode. If you have a leaking boiler, you should shut it off and shut the water supply off to stop the leak immediately. Next, request an emergency appointment with a trained professional who can properly repair the damage.
Recent Jobs and Reviews in Jeffersonville, IN
Job Locations and Reviews
Conducted follow-up replacement estimate for existing HVAC system in residential basement. Evaluated current Rheem furnace installation including gas line connections, copper refrigerant lines, PVC condensate drainage, and ductwork configuration. Assessed electrical service panel capacity and existing circuit assignments for furnace compatibility. Documented equipment specifications and existing infrastructure to provide updated replacement proposal for complete system changeover.
Responded to no cooling complaint on residential air conditioning system. Upon arrival, found thermostat displaying 86°F with unit running but not producing cold air. Performed diagnostic testing on outdoor condensing unit using digital multimeter. Testing revealed failed capacitor preventing compressor from operating properly. Replaced defective dual-run capacitor with new unit, verified proper microfarad readings, and confirmed all electrical connections secure. System tested successfully with compressor engaging and cold air production restored to normal operation.
Responded to intermittent cooling complaint on 5-year-old residential HVAC system. Upon inspection, discovered severely corroded and oxidized copper wiring connections at capacitor and compressor contactor, with visible deterioration compromising electrical continuity. Identified moisture intrusion in condensate drain system evidenced by standing water with sediment accumulation in drain pan. Replaced deteriorated wiring connections, cleaned and tested capacitor for proper microfarad rating, verified contactor operation under load, and cleared condensate drain line obstruction. System cycled properly through multiple heating and cooling cycles with normal amperage draw and temperature differential across evaporator coil. Advised property owner of importance of regular maintenance to prevent future moisture-related electrical component degradation.
Completed comprehensive Platinum Level annual maintenance on single-system HVAC unit as part of second annual visit. Performed full system inspection of outdoor heat pump unit, verified proper operation of all components, checked refrigerant lines and electrical connections, and inspected condensate drain assembly with P-trap for proper drainage and functionality. All systems operating within normal parameters; recommended service agreement renewal for continued coverage.
Completed monthly Platinum Level maintenance on a 2-year-old Lennox HVAC system including filter drop-off service. Delivered and inspected 16x25x5 filter for the indoor furnace unit located in utility closet. Performed electrical diagnostics on outdoor condenser unit using multimeter to verify proper voltage and amperage readings, confirming system operating within manufacturer specifications.
Completed monthly platinum-level preventive maintenance on a 2-year-old residential HVAC system. Performed comprehensive system inspection, replaced standard air filter, verified proper airflow through floor registers using calibrated digital measurement instruments, and confirmed all exhaust venting, condensate drainage lines, and gas connections were secure and functioning correctly.
Completed platinum level planned maintenance on a 1-year-old HVAC system. Performed comprehensive inspection of all system components including thermostat operation, condensate drain lines, and PVC drainage assembly in attic space. Verified thermostat functionality at 72 degrees, inspected condensate pump operation and mounting hardware, and confirmed proper drainage flow through PVC piping system with secure mounting brackets. Changed system filter and documented equipment condition with photos. All components operating within normal parameters. Scheduled follow-up maintenance visit with customer to maintain service continuity.
Performed comprehensive assessment of 23-year-old HVAC system that was inoperative. Inspected furnace unit, ductwork, and electrical components in mechanical closet. Documented existing equipment condition including aged furnace with visible wear, insulated ductwork system, and control wiring. Provided complete replacement estimate for new HVAC system due to age and failure of existing equipment.
Completed annual Platinum Level maintenance on a single-zone HVAC system with a Lennox air handler unit. Performed comprehensive system inspection, filter replacement, and routine maintenance procedures on the one-year-old equipment. Documented system condition with photographs showing the air handler installation, insulated ductwork, and condensate drain line in the mechanical space.
Completed comprehensive AC tune-up and preventative maintenance as part of membership plan. Installed new 16x20x1 air filter, inspected electrical contactors and wiring connections, and performed temperature diagnostics on ductwork insulation showing 57.1°F reading. All system components tested and operating within normal parameters.
Conducted comprehensive site assessment of six buildings approximately 30 years old to develop electrical grounding estimate for lightning protection system. Property has experienced multiple lightning strikes causing power and internet service disruptions. Evaluated existing electrical service equipment including exterior meter assemblies, service panels, and conduit installations on multiple structures. Inspected current grounding configurations at main service entrances and assessed structural conditions of brick and vinyl-sided buildings. Documented existing electrical infrastructure through photographic survey showing analog utility meters, junction boxes, weatherproof enclosures, and exterior conduit runs. Coordinated with maintenance supervisor for facility walkthrough to identify all service entrance locations and discuss scope requirements. Assessed feasibility and routing options for underground utility line burial to mitigate future lightning damage. Prepared specification
Responded to warranty service call for 5-year-old air conditioning system blowing warm air with no cooling. Performed leak search as scheduled from previous visit and conducted diagnostic testing using refrigerant manifold gauges to measure system pressures and temperatures. Found abnormal pressure readings indicating TXV malfunction affecting refrigerant flow and system performance. Documented equipment conditions with photos of diagnostic readings and thermostat displaying 86°F indoor temperature against 61°F setpoint, confirming inadequate cooling. Identified thermostatic expansion valve as failed component requiring replacement under warranty coverage. Part ordered for follow-up installation to restore proper system operation.
Completed complimentary air conditioning system maintenance on a new AC unit as part of scheduled preventive care program. Performed comprehensive tune-up including inspection of outdoor condenser unit, verification of refrigerant line set integrity, electrical disconnect safety check, and thermostat operation confirmation. All components found operating within normal parameters with no issues identified during service visit.
Completed installation of residential water heater in utility room with proper plumbing connections including copper and galvanized piping, pressure relief valve, shut-off valves with red handles, and flexible yellow gas line. All connections were secured with appropriate brass fittings and compression fittings, and the unit was installed adjacent to existing HVAC equipment with adequate clearance for service access and ventilation requirements.
Completed platinum level monthly maintenance on single HVAC system including replacement of 16x25x4 filter. Verified Lennox smart thermostat operation showing proper heating and cooling setpoints at 69°F and 67°F respectively, with system in scheduled mode and displaying accurate time and date information.
Responded to no hot water complaint on five-year-old Reliance residential water heater. Performed diagnostic inspection of unit and plumbing connections, verified all safety valves and shut-off controls were properly functioning, and documented current condition of water heater system with copper and galvanized piping configuration. Unit and installation photographed for service records.
Completed comprehensive replacement estimate for dual HVAC system installation at residential property. Evaluated existing outdoor condensing units, electrical disconnect panel configuration with four breakers, and associated refrigerant line routing. Documented current system conditions, electrical infrastructure capacity, and equipment placement locations to provide homeowner with equipment options and installation specifications for replacing both operational heating and cooling systems.
Responded to no-cool complaint on 5-year-old residential air conditioning system running continuously and unable to reach setpoint, only achieving 75°F. Performed comprehensive system diagnostics using refrigerant manifold gauges and digital measuring equipment to assess operating pressures and temperatures. System evaluation revealed low refrigerant charge indicated by subnormal suction pressure readings. Identified refrigerant leak, performed leak detection procedures, and completed necessary repairs. Evacuated system, recharged to manufacturer specifications, and verified proper superheat and subcooling values. Confirmed system cycling properly and achieving desired temperature setpoint upon completion of service.
Completed annual Platinum Level maintenance on a one-year-old single HVAC system during the second visit of the service cycle. Replaced 20x20x1 air filter, performed comprehensive system inspection including airflow verification at supply registers, and documented equipment condition through photographs. Processed membership renewal and collected payment as part of the scheduled maintenance agreement.
Responded to no cooling call on 4-year-old system with no power to thermostat. Diagnosed failed condensate pump in crawlspace preventing system operation. Condensate pump requires replacement to restore cooling functionality; part ordered for follow-up installation estimated at 30 minutes.