With the rapidly changing weather, you rely on your HVAC system to keep your home comfortable. If your HVAC system malfunctions, your home will quickly become uncomfortable. That’s where the team at A+ Derr Heating & Cooling steps in. Our team has serviced Kentuckiana-area homes for over 45 years.
To get reliable HVAC service in Kentuckiana, call 833-232-4328.
Dependable Air Conditioning
The sweltering heat is enough to drive anyone inside your home for comfort. However, if your AC goes out during a heat wave, you lose your comfort and put yourself at risk for health issues. This is why A+ Derr offers a comprehensive set of AC services.
Our AC services include the following:
- Air conditioning repair: If you’ve noticed a decline in performance or strange noises in your system, it’s time to schedule a repair appointment.
- Air conditioning replacement and installation: Our team can assist in the replacement and installation process if your old system has given out or you’re looking to upgrade.
- Air conditioning maintenance: To get the most out of your AC unit, you need to conduct annual maintenance. One maintenance appointment can go a long way in extending the life span of your AC unit.
On top of central AC units, our team also services ductless mini-split systems. The ductless mini-split is an excellent alternative to a central AC unit as it can work as a heating and cooling system.
Top-Rated Heating
Just like the cold snaps in Owensboro can be brutal. When the cold weather hits, you want to be able to relax in your cozy home. Our heating services include the following:
- Heating repair: Leaking systems or higher energy usage indicate that your heating system needs a repair appointment.
- Heating maintenance: To ensure that your heating system runs efficiently year-round, scheduling an annual maintenance appointment is the best solution.
- Heating installation and replacement: As a Lennox Premier Dealer, you can trust our team to handle installation and replacement appointments with high quality.
Our heating services apply to a variety of systems. Specifically, our team has heat pump and furnace services to help as many Owensboro residents as possible. Don’t let the cold take over your Owensboro home. Find the time for A+ Derr to repair or replace your heating system by calling 833-232-4328.Â
Indoor Air Quality Solutions
One of the most important parts of HVAC service is the indoor air quality section. Our indoor air quality services are designed to keep the air in your home clean and your health in good standing with various services, including duct cleaning, air purifiers, and humidity control.Interested in how indoor air quality solutions can improve your Owensboro home? Call 833-232-4328 to schedule an appointment with A+ Derr.
Why Choose A+ Derr?
Dating back to 1975, our team has worked hard to provide every customer with a great experience when using A+ Derr Heating & Cooling. Along with our glowing reviews, we have financing options to take the stress out of the HVAC service process.To schedule HVAC services for your Owensboro, KY, home, call 833-232-4328.
HVAC FAQs
Why is my AC running but not cooling?
It is a clear sign that a part in the AC unit has broken. One common issue is a broken or clogged condenser coil.
How long do furnaces last?
Furnaces are built to last, as you can expect to get 15 to 20 years out of your furnace before signs of aging show. Annual maintenance can extend the life span of your system.
Recent Jobs and Reviews in Owensboro, KY
Job Locations and Reviews
Completed quarterly preventative maintenance on HVAC system. Installed new 20x25x1 air filter during first scheduled maintenance visit. Inspected control board circuitry and electrical connections in air handler, confirming all components are properly functioning and secure.
Completed site evaluation for potential mini-split expansion at residential property. Inspected existing mini-split system, electrical service panel capacity (noting operational breaker with indicator light), and exterior mechanical layout including two existing condenser units and backup generator. Assessment conducted to determine feasibility of adding additional head to current mini-split versus installing separate system.
Inspected property for reported water leak with undetermined source. Performed visual inspection of crawl space and area beneath driveway where moisture was observed. Examined water meter (reading 05118 cubic feet) to verify consumption patterns and check for movement indicating active leaks. Documentation includes photographic evidence of meter condition and surrounding area.
Successfully replaced corroded metal pipes with new PVC plumbing connections and installed a complete 2.5-ton 15.5 SEER 96% efficiency Lennox HVAC system. System was properly integrated with the existing water heater in the utility closet, with all necessary ductwork and drainage components installed according to manufacturer specifications.
Responded to no heat call for 10+ year old system exhibiting flashing heat indicator with no airflow. Diagnosed faulty control board causing system failure while thermostat was functioning properly; homeowner was using space heater as temporary heating solution with indoor temperature at 63°F despite 70°F setpoint.
Completed installation of a 40-gallon State gas tall water heater in the utility area. Connected unit to existing copper and PVC plumbing systems, ensuring proper venting and gas line connections. Final inspection confirmed all components properly installed with no leaks or operational issues.
Successfully installed a complete Lennox HVAC system with outdoor condenser unit mounted on concrete pad against brick exterior wall, including proper electrical connections and refrigerant lines. Indoor air handler was installed in utility room alongside existing State water heater, with all necessary ductwork, PVC venting, and electrical components properly connected. System was tested and verified to be functioning according to manufacturer specifications.
Completed annual maintenance service (2nd visit) on 6-year-old HVAC system as part of Platinum Level agreement. Inspected interior components including coils, PVC connections, and metal framework, noting system is in serviceable condition with only minor normal wear. Replaced 20x20x4 filter, documented equipment serial number (00052), and collected renewal documentation.
Performed annual HVAC maintenance on system installed 8/22/25. Inspected control panel electronics and wiring connections, verifying proper circuit board functionality and secure wire terminations. Confirmed system level and alignment using precision measuring tools to ensure optimal operation.
Conducted comprehensive evaluation of 30-year-old residential HVAC system including Bryant outdoor condensing unit and interior air return components. System remains operational despite age. Documented existing installation with photos showing outdoor unit mounted on concrete pad with appropriate electrical connections and interior air return configuration. Prepared estimate for complete furnace and AC replacement.
Completed quarterly maintenance visit on CFI system. Inspected gas valve assembly, verified proper electrical connections and wire harness integrity. Checked smart thermostat functionality, confirming proper Wi-Fi connectivity and system communication between the Climate IQ thermostat and HVAC equipment.
Conducted a detailed assessment of a downflow HVAC system for replacement estimate. Customer is experiencing reduced cooling performance from aging equipment and specifically interested in Trane systems. Documented existing installation measurements and configuration in utility closet, including furnace placement, ductwork connections, and base specifications for proper sizing of replacement equipment.
Conducted on-site assessment for generator installation at residence with 200-amp breaker panel and natural gas availability. Inspected existing HVAC equipment and gas line infrastructure to determine optimal generator placement and connection requirements. Documented current electrical system configuration to prepare comprehensive installation proposal.
Conducted warranty service inspection on HVAC unit and documented significant rust and corrosion damage on heat exchanger front plates. Photographed deteriorated metal components showing oxidation patterns and took measurements for replacement parts. System requires follow-up with new heat exchanger components; current priority status is green (system operational).
Responded to no-heat call for 8-year-old system. Diagnosed ignition failure causing system to blow cold air. Corrected ignition sequence issue and restored proper heating function, confirming operation with thermostat set to 70°F. System now maintaining desired temperature.
Responded to callback for system with intermittent operation issues previously serviced one month ago. Upon inspection, found control board exhibiting red flickering light and failure to maintain continuous operation. Diagnosed faulty Emerson circuit board (59-522 REV.002) with compromised electronic components. Replaced control board and verified proper system operation with stable ignition sequence and normal runtime performance.
Successfully installed a State ProLine 40-gallon gas water heater (57 1/2" height, 21" width) with copper piping connections in utility closet. Installation included proper venting with galvanized steel ductwork and mounting of expansion tank. Unit comes with manufacturer warranty of 6 years on parts and 1 year on labor.
Responded to service call for 6-month-old HVAC system producing squealing noise and insufficient heating. System was operational but delivering minimal airflow with home temperature at 64°F despite thermostat setting of 70°F. Diagnostic evaluation performed and necessary adjustments made to restore proper system function.
Performed annual maintenance on 5-month-old Platinum Level HVAC system. Inspected and replaced 16X25X5 filter. Examined blower wheel assembly and internal components including electrical connections, circuit board, and PVC piping. System functioning properly after service.
Completed scheduled second annual maintenance visit on 6-year-old HVAC system. Replaced 20x20x5 filters, inspected Lennox outdoor unit including internal components and electrical connections, and verified proper operation of Honeywell digital thermostat. System is functioning correctly; customer advised that service agreement renewal is due.
