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
Conducted warranty service inspection on customer Randy James' HVAC system (Job #402778806). Identified collector box requiring replacement, with visible rust and corrosion throughout the interior components. Documented condition with photos and submitted follow-up request for necessary replacement parts.
Identified faulty ComfortBridge control board (REV. 001) in customer Robert Bell's system. Documented model information, serial number, and captured photos of the Emerson-manufactured board for warranty replacement. System currently operational but requires follow-up installation of replacement part.
Successfully installed two customer-provided toilets in the residence. Both units were properly secured to the floor, connected to the water supply, and tested for proper function and leaks. The installation was completed with all necessary seals and fixtures in place, leaving the bathroom in clean, operational condition.
Responded to emergency service call for burst pipe causing low water pressure and no hot water. Upon inspection, accessed wall cavity to examine plumbing infrastructure. Repaired damaged pipe connections and replaced compromised P-trap assembly, restoring proper water flow and hot water functionality.
Responded to no heat complaint on a 4-year-old system with intermittent operation. Customer reported having to reset breaker frequently to restore function and noted unusual pumping noise. Inspection revealed faulty control board with visible electronic component failure; replaced board and restored normal heating operation.
Performed annual maintenance visit on NSSU system installed 7/15/25. Replaced 16x25x5 Pure Air filters. Temperature readings at supply register measured 114.6°F, confirming proper system operation. System not due for renewal at this time.
Completed site visit for electrical transfer switch installation. Installed Generac transfer switch panel on exterior brick wall, connecting to utility meter via metal conduit. Confirmed successful operation of system components with client for scheduled completion.
Inspected condensate line that was previously installed with heat tape but continued to freeze. Found inadequate insulation around the condensate pipe. Removed existing insulation, inspected the heat tape installation, and replaced with proper foam insulation with reinforced edges to provide better thermal protection. Verified proper drainage and eliminated need for temporary secondary drain hose.
Responded to no heat call for 20-year-old Arcoaire gas furnace that was short cycling and blowing cool air. Upon inspection, found significant corrosion on heat exchanger and deterioration of blower assembly components. Diagnosed failed pressure switch and compromised heat exchanger requiring full system replacement. Temporarily restored operation by cleaning contacts and adjusting pressure switch to allow customer time to consider replacement options. Recommended immediate upgrade due to safety concerns and inefficiency of current system.
Completed annual Gold Level maintenance service on mini-split system installed in 2025. Inspected interior wall-mounted unit and verified proper operation. System is due for filter replacement; customer advised of renewal options.
Conducted an in-home evaluation of existing Bryant HVAC system to determine appropriate whole-home humidifier installation options. Inspected current furnace setup, ductwork configuration, and available utility connections to identify optimal mounting location and required modifications for humidifier integration.
Successfully installed a new 18kW Generac generator system on a precast concrete pad adjacent to customer's residence. Completed all necessary electrical connections including transfer switch installation and integration with existing home electrical system. Final inspection confirmed proper operation and compliance with manufacturer specifications.
Conducted comprehensive assessment of 30-year-old HVAC system and 18-year-old water heater for potential replacement. Inspected and documented existing gas meter installation with associated piping connections to evaluate capacity for new equipment. Customer expressed interest in free water heater promotion with complete system replacement.
Performed scheduled maintenance on HVAC system and identified issue with humidifier failing to shut off. Inspected attic supply line and found water damage on adjacent wall. Repaired humidifier control valve and confirmed proper cycling operation before completing service.
Performed platinum level annual maintenance on one HVAC system. Replaced 16x20x5 filter as part of the 3-year service agreement. Verified proper operation of Honeywell Home ProSeries thermostat, which was functioning correctly at 72°F in Heat mode.
Responded to no-heat call for 5-year-old system. Diagnosed faulty control board causing system failure despite thermostat showing heat mode active. Replaced circuit board, restoring proper communication between thermostat and furnace components. System now functioning correctly with normal airflow and heating operation.
Responded to no heat call for 7-year-old system that was not initiating heating cycle when thermostat called for heat. Upon inspection, discovered significant debris accumulation at unit base and corrosion issues. Diagnosed faulty control board with damaged relay components and compromised electrical connections. Replaced control board, cleaned system components, and verified proper operation with successful heating cycle initiation.
Completed follow-up service visit to address previously reported issues. Replaced battery and repaired broken screw on equipment. Installed new compliance sticker on unit and verified proper operation of valve/pump assembly with electrical connections intact and secure.
Conducted generator installation estimate at residential property, evaluating existing 200A Cutler-Hammer electrical panel and natural gas meter setup. Determined adequate electrical capacity and gas supply for proposed generator installation. Photos documented current infrastructure to facilitate accurate quote preparation.
Conducted follow-up inspection of installed Generac Guardian 26kW backup generator. Verified unit is properly mounted on concrete pad adjacent to brick exterior wall. No issues identified with installation or positioning.
