The expert professionals at A+ Derr are ready to serve all of your HVAC system needs in Newburgh, IN. We are fourth-generation business owners and have been helping Newburgh-area families ensure quality air in their homes since 1975. A+ Derr provides free estimates on service calls and replacement services. We also have 24/7 emergency service and same-day service. Our commitment to excellence means we’re there for you, no matter when your HVAC system needs repair. Our 100% satisfaction guarantee means you can rest easy knowing you made a sound investment. Our motto is: “If you’re not happy with a product installed by us after the first year, we’ll buy it back.” If you need quality HVAC services in Newburgh, call the A+ Derr team at 833-232-4328 or contact us online!
Heating & Furnace Services in Newburgh, IN
Living in Newburgh means dealing with harsh winters. To make it through in comfort, you need a reliable heating system and a trustworthy HVAC team to service it. A+ Derr offers comprehensive heating and furnace services to Newburgh residents. You can count on us for:
- Heating system installation and replacement
- Heating repair
- Heating maintenance
Don’t wait until the cold weather season to check your heating system! Call 833-232-4328 to ensure your system will be ready when you need it most.
Air Conditioning Systems in Newburgh, IN
A working AC is a necessity when a Newburgh summer hits. If your air conditioner suddenly goes out, you don’t want to be left in the heat. If that happens, turn to the experts at A+ Derr. We can help with any of your cooling issues, whether you need routine maintenance or a complex repair. Our services include:
Don’t sweat it out this summer! Contact A+ Derr at 833-232-4328 for quality air conditioning services in Newburgh.
Indoor Air Quality for Newburgh, IN
The air quality in your home is essential, but it can be easy to overlook. Our homes are much more efficient than they used to be. They are designed to keep the air in to efficiently heat and cool homes. While that’s great for your energy bill, it can cause poor air quality, which can worsen allergy and asthma symptoms, along with other negative side effects. To ensure you have good indoor air quality, schedule a visit from one of our expert professionals. They’ll test your air and make recommendations based on your needs and budget to help keep quality air inside your home.
Should You Upgrade Your Newburgh, IN, HVAC System
Most quality HVAC systems last around 15 years with routine maintenance. As they age, all systems will begin to lose efficiency. It may be time to upgrade your HVAC system if:
- The system is not blowing the correct air temperature
- Some rooms are too hot or too cold
- You hear strange noises coming from the system
- Your system is more than 15 years old
- Your HVAC system is noisy
- Your HVAC system needs to be repaired more than once a year
If you think you may need an HVAC system upgrade, call the experts at A+ Derr at 833-232-4328! We provide free estimates on system replacements.
Benefits of HVAC System Maintenance
With an investment like an HVAC system, you want to ensure it works efficiently and effectively. To keep it running smoothly, consider scheduling routine maintenance. Routine maintenance on your HVAC system can help prevent breaks and improve overall performance, including:
- Extending the life span of the system
- Increases energy efficiency
- Improves performance
- Fewer breakdowns
- Lower energy bills
At A+ Derr, we offer comprehensive maintenance to keep your system working to the best of its ability. During our routine maintenance appointments, we check:
- Refrigerant levels
- System components
- Thermostat recalibration
- Part lubrication
- Possible leakages
- Overall performance tests
If you’re ready to schedule a routine maintenance check with A+ Derr, call 833-232-4328 or contact us online.
Choose A+ Derr for Your Newburgh, IN, HVAC Needs
If you’re in the market for an HVAC system maintenance, repair, or even a complete upgrade, A+ Derr’s expert technicians are here to serve you. Our long-standing commitment to assisting customers in the Newburgh, IN, area to feel comfortable in their homes all year long means we can help you with your system needs. You can be confident in choosing A+ Derr because our 100% Satisfaction Guarantee means you know the job is not done until you’re satisfied.If you want A+ HVAC services, go with A+ Derr! Call 833-232-4328 or contact us online to schedule heating or air conditioning services in Newburgh.
Recent Jobs and Reviews in Newburgh, IN
Job Locations and Reviews
Responded to service call regarding indicator light status on Evolution 2.0 generator system. Upon arrival, performed comprehensive system diagnostics using electronic test analyzer, which confirmed all system parameters within normal operating range with 100% battery charge and passing diagnostic results. Verified generator control panel functionality, reviewed exercise schedule settings showing weekly Tuesday runtime programmed at 18:00 hours, and confirmed AUTO/MANUAL/OFF modes operating correctly. System tested and found to be functioning as designed with no faults present.
Completed scheduled preventive maintenance on residential standby generator unit. Performed comprehensive battery system analysis using diagnostic analyzer, confirming battery in good operational condition with 100% state of charge, 650 measured CCA, 12.89V output, and 4.33mΩ internal resistance—all parameters within manufacturer specifications. Verified generator control panel functionality through Evolution 2.0 controller interface, observing utility recovery voltage reading of 190V and confirming proper operation of AUTO/MANUAL/OFF selector modes and all control buttons. Unit tested successfully and left in automatic standby mode for normal operation.
Completed planned maintenance on 16-year-old HVAC system, including replacement of 16x25x1 air filter. Performed comprehensive system diagnostics using Fieldpiece Measurements application, recording return air conditions at 63.1°F dry bulb with 56.1% relative humidity and supply air at 43.8°F dry bulb with 79.1% relative humidity, achieving a temperature split of 19.3°F. Verified R-410A refrigerant charge with suction pressure at 106.8 PSIG and liquid line pressure at 238.5 PSIG, confirming proper superheat and subcooling values within manufacturer specifications. System operating efficiently with no deficiencies noted.
# Generator Maintenance Performed routine maintenance inspection on Evolution 2.0 generator system. Unit displayed 7.1 run hours on the control panel LCD display. Verified proper operation of all control functions including AUTO, MANUAL, and OFF modes. Confirmed Cold Smart Start feature was enabled and functioning correctly. Inspected control panel buttons and display for proper operation. All systems tested and operating within normal parameters. Generator is ready for service.
Completed Platinum Level maintenance on dual HVAC system during annual second visit. Inspected both indoor air handler and outdoor condensing unit, verifying all electrical components, capacitors, circuit boards, and blower motor operation. Replaced 16x25x5 and 20x25x5 filters, checked all wire connections, and confirmed proper system functionality on both units.
Successfully completed installation of a 24kW Generac residential standby generator system. Unit was delivered to site, positioned, and prepared for full electrical integration and startup per manufacturer specifications.
Completed comprehensive Platinum Level maintenance on a 10-year-old single HVAC system during the second annual visit. Performed full system inspection of outdoor condensing unit, replaced 16x25x5 air filter, and conducted standard preventive maintenance procedures including electrical testing and operational verification. All components found operating within manufacturer specifications, and system is ready for continued service.
Performed comprehensive maintenance flush on State ProLine commercial-grade tanked water heater. Drained sediment buildup from tank bottom through drain valve, flushed system with fresh water to remove mineral deposits and debris, and inspected all connections including copper supply lines, pressure relief valve, and gas control assembly. Verified proper operation of temperature and pressure relief valve, checked all plumbing connections for leaks, and confirmed unit returned to normal operating parameters upon completion.
Completed routine tanked water heater maintenance flush on a 2-year-old AO Smith Signature 100 residential unit as part of the USA Bronze maintenance plan. Performed standard drain and flush procedure to remove sediment buildup from the tank bottom, inspected all connection points including braided supply lines and copper piping for proper operation, and affixed service completion sticker documenting the maintenance date. Unit operating within normal parameters with no leaks or deficiencies noted upon completion.
# HVAC Maintenance Summary Completed annual Platinum Level maintenance on a single residential HVAC system installed in February 2026. Performed comprehensive inspection of all mechanical components, condensate drain lines, and ductwork. Verified proper operation of control modules, sensors, and electrical connections. Collected filter size measurements for future service requirements. Documented system condition through photographic records showing PVC condensate piping configuration, control box wiring, and overall equipment installation. All components found operating within normal parameters with no immediate service needs identified.
Responded to no cooling call on Lennox outdoor unit. Found tripped breakers and failed contactor relay preventing compressor operation. Thermostat (Nest) was unable to communicate with HVAC system due to electrical fault. Replaced defective contactor relay and associated wiring connections. Restored power, verified proper thermostat communication, and confirmed system operation with adequate airflow and cooling capacity. System returned to normal operation.
Completed annual Gold Level planned maintenance on residential HVAC system consisting of 7-year-old Goodman furnace and associated components. Performed comprehensive inspection of heating system, replaced air filter, verified thermostat operation and programming functionality, checked all safety controls, inspected ductwork connections, and documented system condition with photographs. All equipment operating within normal parameters at time of service.
# Plumbing Maintenance - Tanked Water Heater Flush Performed comprehensive maintenance flush on A.O. Smith ProLine tanked water heater unit. Connected drain hose to tank drain valve and successfully evacuated sediment and mineral buildup from tank bottom to exterior concrete pad. Inspected copper supply piping, gas line connections, and flue vent for proper operation. All components verified in good working condition following flush procedure. Unit restored to optimal operating efficiency.
# Dismissed Visit - Single System HVAC Maintenance Performed a dismissed visit on a single-system residential HVAC installation featuring a 10-year-old Carrier furnace unit. Conducted visual inspection of the vertical cabinet-style furnace located in the basement utility area. Documented equipment condition through photographic records showing the unit's exterior, access panels with black latches, manufacturer information labels, and associated PVC condensate drainage and venting piping at the top and side of the unit. Verified the furnace cabinet integrity and noted the unit's clean, well-maintained white exterior finish with smooth metal construction. Observed proper installation on concrete flooring with appropriate clearances. Inspected visible piping components including white PVC lines extending horizontally and vertically from the top of the unit, as well as copper piping on the left side. Confirmed all access panels and fastening points were secure. System specifications not
Performed annual Platinum Level maintenance on 3-year-old HVAC system. Replaced 20x25x2 polarized air filter and completed comprehensive system inspection. During inspection, discovered extensive rust and corrosion on evaporator coil assembly, with significant oxidation damage across the coil fins. Documented coil condition with photographs showing deteriorated metallic surfaces and corrosion patterns. Verified all refrigerant lines, copper piping, condensate drain system, and electrical connections. Unit remains under warranty coverage. Submitted part order request for replacement evaporator coil with model and serial number documentation, manufacturer information, and photographic evidence to expedite warranty processing. Follow-up visit scheduled for coil replacement upon part arrival, estimated as half-day repair. System operational but requires evaporator coil replacement to prevent further deterioration and maintain efficiency.
Completed first scheduled maintenance visit for dual HVAC system as part of three-month planned maintenance program. Inspected Lennox SLP99DF070XV36B furnace unit and verified all manufacturer specifications and safety labels were intact and legible. Replaced two 16x25x5 air filters per maintenance schedule to ensure optimal airflow and system efficiency. Verified thermostat connectivity and Wi-Fi network integration, confirming proper communication between thermostat, router, and remote monitoring capabilities. All system components operating within normal parameters with successful connection status across all control interfaces.
Completed planned duo maintenance on Gold Level system with two HVAC units. Performed comprehensive inspection of furnace/air handler located in utility closet, checked electrical disconnect and indicator lights, verified proper operation of refrigerant lines, and replaced 20x20x5 filter as part of monthly maintenance agreement. All equipment found operating within normal parameters with no issues detected.
Performed follow-up site visit to diagnose non-operational electric heat strips that were identified during previous maintenance service. Conducted system pressure diagnostics using gauge testing at multiple connection points throughout the HVAC system, including assessment of refrigerant lines and associated plumbing components. Unable to restore heat strip functionality during this visit; additional follow-up appointment will be required with appropriate personnel to complete troubleshooting and repair of the electric heating elements.
Completed installation of a 2-ton Lennox HVAC system including an 18 SEER air conditioning condenser unit and 97% AFUE upflow furnace. The outdoor condenser unit was positioned on a concrete pad against the building exterior with proper clearances maintained for optimal airflow and serviceability. All refrigerant lines were installed and the system was charged to manufacturer specifications, with pressure and temperature readings verified using digital diagnostic equipment to ensure proper operation. Electrical disconnect was mounted for safe system shutdown capability during future maintenance.
Completed second annual Gold Level maintenance visit on 16-year-old residential HVAC system. Performed comprehensive inspection of outdoor condensing unit and indoor furnace system, verified proper operation of all components, replaced 20x20x1 air filter, and documented equipment condition with photos. Customer notified that annual service agreement is due for renewal.
