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
Performed scheduled Gold Level maintenance service on a 12-year-old HVAC system. Observed significant dust and cobweb accumulation on copper refrigerant lines and around the blower assembly. Thoroughly cleaned components and replaced air filter as part of annual first visit maintenance.
Completed platinum maintenance on 16 x 25 x 5 system. Accessed internal components, inspected electrical connections and control board functionality. Verified proper operation of blower motor assembly and conducted comprehensive diagnostic testing with multimeter to ensure system is operating within manufacturer specifications.
Responded to callback regarding humidity control issues. Confirmed thermostat humidity setting at 50%, but actual readings showed 62.7-62.9% per handheld hygrometer, with temperature discrepancy between thermostat (72°F) and customer's separate measurement (63°F). System requires further diagnosis as humidity control problem remains unresolved.
Performed Gold Level annual maintenance on 2023 model furnace and A/C system during second scheduled visit. Inspected internal components including circuit boards, wiring connections, and blower motor assembly. Replaced 16x25x4 filter and notified customer that service agreement is due for renewal.
Completed annual maintenance visit on 5-7 year old Trane system as part of second visit in maintenance plan. Inspected indoor water heating equipment and outdoor AC condensing unit, verifying proper operation and connections. Renewed maintenance agreement as requested by customer.
Successfully installed a new State 40-gallon tall gas water heater (57½" height x 21" width) with blue expansion tank in residential mechanical room. Connected copper supply lines and PVC venting properly to ensure optimal functionality. Unit carries 6-year parts warranty and 1-year labor warranty.
Completed Platinum Level maintenance on single HVAC system including replacement of 16x25x4 filter. Inspected furnace/air handler internal components, circuit board, and wiring connections - all operating normally. Checked water heater, ductwork, and PVC venting system for proper function. System is in good working condition with no leaks or anomalies detected.
Installed new dedicated 20A/120V circuit to front corner bedroom and replaced existing bathroom receptacle with dedicated 20A/120V GFCI circuit. Converted standard 2-conductor receptacle in front bedroom to GFCI for improved safety. Work performed in area with partial carpet removal and accessed electrical system through basement/crawlspace to route new wiring.
Completed Platinum Level annual maintenance on residential HVAC system. Serviced 5-year-old unit with 16x20x5 filter. Performed comprehensive inspection of furnace/air handler with examination of internal components including control boards, wiring, and ventilation system.
Performed scheduled monthly maintenance on 4-year-old HVAC system with 16x25x5 filter. Conducted thorough inspection of internal electrical components, verified proper wire connections and examined control boards. System is functioning correctly with no issues detected.
Conducted routine HVAC maintenance on 5-year-old system in basement utility room. Inspected furnace/air handler unit, verified filter dimensions (16x25x2), and installed new polarized air filter as previously recommended by technician Cameron Nelson.
Completed annual maintenance on 9-month-old system during second scheduled visit. Inspected digital thermostat operation confirming proper temperature display and functionality. Serviced main HVAC unit, checked internal components, verified proper venting through PVC exhaust, and replaced 16x25x5 air filters. No renewal required at this time.
Conducted follow-up inspection regarding Centerpoint's report of a gas leak possibly related to generator installation. Identified active water leak at threaded joint connection on metal supply pipe. Documented condition with photos showing water droplets forming at pipe joint with signs of wear/corrosion. Advised customer of potential charges if leak is determined to be unrelated to original generator installation work.
Conducted comprehensive evaluation of existing HVAC system for potential replacement as requested by customer through referral. Inspected outdoor unit (green HVAC system with adjacent white ductwork) and interior wall-mounted return air filter access panel. Customer also expressed interest in water heater promotion options.
Diagnosed system experiencing false flame/gas valve shorted code issue that persisted after previous service. Upon inspection, found faulty control board and replaced it. Also addressed intermittent ignition by repairing damaged inducer motor plug connection. System is now operational, though replacement of aging furnace is recommended due to overall condition.
Completed annual platinum-level maintenance on a 5-year-old HVAC system with 16x25x5 filter. Inspected furnace, venting system, and associated ductwork; all components found to be clean and in proper working condition with no visible issues. System is well-maintained with appropriate installation of PVC exhaust pipes and proper connections.
Performed annual platinum maintenance on one system. Inspected and replaced the plastic condensate drain component which showed signs of wear but was still functional. Confirmed all connections were secure and the system is operating properly.
Completed second visit of Gold Level annual maintenance on 10-year-old HVAC system. Replaced 16x25x5 air filter with proper orientation as indicated by directional arrows and secured filter in metal housing. System is due for renewal.
Completed installation of an 18kW Generac generator system with transfer switch. Work included routing appropriate conduit through basement ceiling infrastructure and making all necessary electrical connections. System successfully installed with proper integration to existing home utilities.
Completed planned maintenance for a 9-year-old system (second visit). Replaced 20x25x5 air filter as scheduled per maintenance agreement. Inspected control board connections and verified proper terminal wiring at TWN block. Examined equipment identification tag (AMEC961004CNAB) and confirmed all components operating within specifications.
