Reliable HVAC Service in Evansville Since 1975
When you need HVAC services in the Evansville area, you need A+ Derr. As a fourth-generation, family-operated business, we’ve been helping Evansville families stay comfortable in their homes since 1975. Our commitment to excellence means we’re there for you, no matter when you need us. We have 24/7 emergency and same-day service, so you know your HVAC systems will be running properly in no time. We also offer free estimates on service calls and replacement services. You’ll know you have the best price with expert and professional technicians. We love our customers, and we want you to know that your satisfaction is our priority. That’s why we offer a 100% satisfaction guarantee: “If you’re not happy with a product installed by us after the first year, we’ll buy it back.” For HVAC services you can trust in Evansville, call A+ Derr at 833-232-4328!Located at: 7545 Peachwood Dr. Newburgh, IN, 47630 When you live in the Evansville area, you can count on cold winters. That means you also need to be able to count on your heating system to keep your home warm and comfortable all winter long. If your heating system is not reliable anymore, contact A+ Derr. Our expert technicians will make sure your heating system is fixed quickly and efficiently. Our services include:
Don’t wait until the cold weather seasons to have your heating system checked. Contact us at 833-232-4328 to know your system will be ready when you need it most.
Air Conditioning Systems in Evansville, IN
You don’t want to be stuck in the middle of a humid summer without a working air conditioning system. But if that happens, it’s time to call the experts at A+ Derr. We can help with any of your cooling issues.
No matter what your cooling system needs are, we can help. We offer:
Our team is ready and able to help you feel cool and comfortable all summer long! Call 833-232-4328 or contact us online to schedule service.
Indoor Air Quality for Evansville
Have you ever thought about the quality of the air inside your home? It can be unpleasant to think about, but your home’s air can be filled with germs and bacteria. When you control the indoor air quality of your home, you can reduce germs and dust naturally. Plus, eliminating or reducing the number of particles in the air helps your HVAC systems run more efficiently. Because our homes have fewer leaks, it is easier to heat and cool them. But that also means germs, bacteria, and dust can linger in our homes, making us sick or causing our house to smell. Make sure your indoor air quality is good to help reduce asthma, allergies, and other conditions. Call 833-232-4328 or contact us online to learn more about how A+ Derr can improve your air quality!
Signs You Need HVAC Repair
With an investment like an HVAC system, you want to make sure it is working efficiently and effectively. But it can be difficult to tell when you should have your system repaired. Here are some signs to look for:
- Your system is not blowing the correct temperature air.
- Your thermostat is not working.
- Your system is making strange noises.
- You notice smells coming from your system.
If you think you may need your HVAC system to be repaired, our team of expert and professional technicians is ready to help you. We’re even available 24/7 for those issues that just can’t wait! If your heater or air conditioner needs repairs, you can count on A+ Derr! Call 833-232-4328 or contact us online.
How Long Should Your HVAC System Last?
With regular maintenance and proper care, your HVAC system should last at least 15 years. After that, the system will become increasingly inefficient, and it may be time to have it replaced. If you think you may need an HVAC system replacement, call the experts at A+ Derr. We offer free estimates for heating and air conditioning system replacements!
Benefits of Replacing Your HVAC System
No matter how well you maintain your HVAC system, at some point, it is going to be in your best interest to replace it. Having a professional inspect your system is the best way to know if it’s time to replace your HVAC. But before you have a technician come to your home, here are some telltale signs that a replacement is needed:
- Your system is more than 15 years old.
- Some rooms in your home are too hot or cold.
- Your heating system is noisy.
- It needs to be repaired more than once a year.
Choose A+ Derr for Your Evansville, IN HVAC Needs
A+ Derr is committed to exceptional customer service. We have been in business since 1975, and we understand what it takes to make sure your home is comfortable all year long. Our 100% Satisfaction Guarantee means you know you’ll be satisfied with your new system. For A+ HVAC services, choose A+ Derr! Contact us online or call 833-232-4328 to schedule service for your Evansville home.
Evansville HVAC FAQs
How does Ohio River humidity affect cooling in Evansville?
High moisture loads make short cooling cycles feel clammy. Longer, lower-speed operation and clean coils remove more moisture, which helps rooms feel cooler at the same setpoint.
What should I do before a same-day service visit?
Open all supply and return grilles, clear access to the air handler, thermostat, panel, and outdoor unit, and note when symptoms happen. If a coil is iced, set cooling Off and fan On until a technician arrives.
Which thermostat features actually help in our climate?
Look for dehumidify on cool, adaptive recovery, and staging control. These features favor steady operation that manages humidity and reduces swings.
Do I need permits when replacing HVAC equipment around Vanderburgh County?
Most equipment replacements require permitting and inspections for electrical and mechanical work. A+ Derr Heating & Cooling handles the paperwork and coordinates inspections.
What SEER2 rating is a good fit for Evansville summers?
Mid to high SEER2 systems paired with sealed ducts, verified airflow, and smart controls typically provide a strong balance of comfort and cost.
Why do some rooms stay warm even after a repair?
Duct balance and return paths may need attention. Adding returns to closed bedrooms, correcting undersized runs, and setting the right blower speed often evens out temperatures.
Are heat pumps practical here or should I stick with a furnace and AC?
Heat pumps work well for cooling and shoulder-season heating. Many homes stay with a dual-fuel setup that uses the heat pump most days and the furnace during colder snaps.
What maintenance tasks make the biggest difference before peak heat?
Replace filters on time, keep the outdoor coil clear of cottonwood and grass clippings, and make sure the condensate drain is flowing. A spring tune-up catches issues before a heat wave.
How can I reduce HVAC noise that carries through walls or patios?
Level the outdoor unit, maintain clearances, add vibration pads, and check that indoor returns are sized correctly. Flexible connectors and proper duct supports also help.
What should I check if the system will not start after a storm?
Give the thermostat and controls a few minutes for built-in delays, then check breakers and the outdoor disconnect. If a breaker trips again or the fan hums without spinning, power the system off and schedule service.
Recent Jobs and Reviews in Evansville, IN
Job Locations and Reviews
Completed follow-up repair on leaking refrigerant line joint on 10-year-old residential air conditioning system. Repaired corroded copper pipe connection that showed significant oxidation and patina formation on outdoor condensing unit. System restored to proper operation with adequate airflow confirmed at supply registers and refrigerant circuit integrity verified.
Completed planned maintenance visit on residential HVAC system with 12x24x1 filter specification in its fifth year of service. Performed comprehensive inspection of outdoor condensing unit and indoor air handler, accessing internal components to verify proper operation of capacitor, wiring connections, and blower motor assembly. Documented system condition with photography showing condenser coils, electrical connections, control board, and heat exchanger sections for maintenance records.
Completed annual Platinum Level maintenance on upstairs Lennox HVAC system with 16x25x5 filter. Inspected furnace/air handler unit, ECM blower motor control board, and all electrical connections. Verified proper operation of 24VAC control system, humidifier accessory terminals, and condensate drainage lines. All components found operating within manufacturer specifications, system performing as designed.
Completed scheduled Gold Level maintenance on 9-year-old residential HVAC system during second preventive visit. Performed comprehensive inspection of outdoor condenser unit, verified operational status, replaced 20X25X5 air filter, and documented equipment condition with photos showing unit in standard working order with no visible damage or immediate concerns.
# HVAC Maintenance Completed Performed Platinum Level preventive maintenance on single residential HVAC system during first scheduled visit. Inspected outdoor condensing unit, verifying proper leveling and operational integrity of electrical components and control board. Documented condition of exterior electrical panel, noting significant rust and corrosion on interior surfaces requiring monitoring. Verified all wire connections and internal circuitry functioning within normal parameters. System operational and ready for continued service with 20x20x5 filter specification noted for homeowner reference.
Responded to follow-up service call to complete lighting installation work previously scheduled. Upon arrival, confirmed that customer-supplied light fixtures were damaged and could not be installed. Documented existing ceiling-mounted decorative cage fixture currently in place and photographed uninstalled motor housing component still in packaging. Unable to complete installation due to defective customer-provided materials.
Conducted comprehensive replacement estimate for non-functioning HVAC system in residential basement mechanical room. Evaluated existing heating and cooling equipment, assessed ductwork and electrical infrastructure, documented current system configuration including mini-split unit, and provided complete replacement recommendations for both furnace and air conditioning components.
Completed first annual Gold Level planned maintenance on 5-year-old residential HVAC system with R-410A refrigerant. Performed comprehensive inspection of outdoor condensing unit electrical compartment, verifying proper operation of capacitor, contactor, and all electrical connections. Inspected Aspen refrigerant evaporator unit (Model CCMB347FR167) and confirmed all manufacturer specifications and safety labels intact. System operating within normal parameters with no issues identified.
Completed installation of 3-ton, 19 SEER Lennox heat pump system with matching air handler at residential property. Unit positioned on concrete pad against exterior wall with proper clearances maintained, electrical disconnect mounted on siding with conduit run to condensing unit, and refrigerant lines routed and insulated per manufacturer specifications. System tested and operational upon completion.
Completed first annual planned maintenance visit on recently installed HVAC system. Inspected electronic control board assembly, verified proper operation with illuminated status LED and secure wire connections at terminal blocks. Installed new 16x25x5 air filter in filter rack housing with proper mounting and documentation of installation date.
Completed scheduled HVAC maintenance tune-up on residential gas furnace system located in attic space. Performed comprehensive inspection of all internal components including heat exchanger, burner assembly, blower motor, electrical control board, and associated wiring connections. Verified proper operation of gas supply lines, condensate drain system, and safety controls. System found to be in normal operational condition with all components functioning within manufacturer specifications.
Completed annual planned maintenance on residential HVAC system including Lennox furnace and outdoor condensing unit. Performed comprehensive system inspection, changed 16x25x5 air filter, checked refrigerant lines and electrical connections, verified proper operation of all components, and documented equipment condition with photos. All systems operating within normal parameters with no issues identified during this first annual service visit.
Completed routine preventative maintenance on residential air conditioning system per customer request. Performed comprehensive AC tune-up including system inspection, filter replacement, and operational testing. Replaced heavily soiled air filters with new units, as documented in service photos showing significant dust and debris accumulation on original filters. All system components found operating within normal parameters with no deficiencies noted at time of service.
Completed monthly platinum level maintenance on a 7-year-old HVAC system, including replacement of 20x25x5 filter, inspection of outdoor condensing unit, and verification of proper system operation. All components were found to be functioning within normal parameters, with no deficiencies noted during the inspection.
Completed Platinum Level maintenance on single HVAC system including comprehensive inspection and performance verification. Measured supply air temperature at 41.3°F confirming proper cooling operation, checked system leveling to ensure proper condensate drainage and equipment stability, and replaced 16x25x5 air filter per maintenance protocol. All system components operating within manufacturer specifications at time of service.
# HVAC Maintenance Summary Completed Gold Level planned maintenance on a 7-year-old Carrier single-system residential HVAC unit during second visit for service renewal. Performed comprehensive system inspection of outdoor condenser unit and indoor Aspen refrigerant evaporator (Model CC42C44210R057, Serial G18-00009223) utilizing R-410A refrigerant with TXV installed. Verified proper operation of all components, checked electrical connections at disconnect box, and documented equipment condition through photographic records. System operating within normal parameters with no deficiencies noted.
Responded to no cooling complaint on 6-year-old residential system under warranty. Upon inspection, diagnosed failed condenser coil requiring replacement along with filter drier. Ordered necessary parts with 7-10 day estimated delivery time, and scheduled 4-hour return visit for installation upon arrival.
Installed a 40-gallon gas tall water heater (57 1/2" height x 21" width) in residential utility closet with proper venting through metallic exhaust flue. Connected hot and cold water supply lines using copper piping with brass fittings and shutoff valves, installed blue expansion tank on wall with appropriate piping connections, and ensured all plumbing connections met code requirements. Unit includes 6-year parts and 1-year labor warranty.
Completed monthly Platinum Level preventive maintenance on single HVAC system. Replaced 16x20x5 air filter and performed comprehensive system diagnostics using refrigerant manifold gauges, confirming R410A refrigerant pressures and temperatures within normal operating parameters for the outdoor condensing unit.
Conducted comprehensive whole home repiping estimate assessment. Evaluated existing plumbing infrastructure including exposed basement ceiling joists revealing original and reinforced framing with visible supply lines, and inspected bathroom fixtures including chrome dual shower head system with handheld attachment and wall-mounted controls. Documented current plumbing conditions through detailed photography to provide accurate scope of work for complete residential repiping project.
