Family-Operated Heating & Cooling Company
A+ Derr Heating & Cooling confronts all of the unique Kentucky climate challenges by offering tried and tested HVAC services from a team of trained technicians. We’re a fourth-generation family business with more than 50 years of experience.
Our impressive team and exceptional inventory allow us to bring you prompt, efficient solutions that last for your home in Bardstown. We even offer financing to make your journey more affordable.
24/7 Emergency Service (833) 232-4328 Schedule Service Schedule Service
Your Local Heating Experts
Bardstown has been experiencing some of its iciest weather in half a century, so you need an optimized HVAC system with exceptional venting. Without adequate heating, your pipes will freeze, your faucets will run dry, and your boiler will be rendered useless. A+ Derr’s exceptional technicians will make sure your home remains fully functional all year. We offer:
- Heating installation: We install all heating technologies, from electric furnaces and boilers to geothermal heat pumps and ductless mini-splits. If your system is underperforming or breaking down frequently, we’ll assess whether a repair or replacement will suit your situation best.
- Heating repair: Near-freezing weather is hazardous, so we provide 24/7 emergency repairs when your heating system lets you down.
- Heating maintenance: Our maintenance plan includes repair discounts, two seasonal services, and 24-hour priority support.
Air Conditioning Services You Can Trust
Bardstown’s muggy summers can strongly impact your productivity and quality of life. A+ Derr will get you through the season in absolute comfort. As a premier dealer for some of the finest air conditioners in the world, we can bring you unparalleled quality.
- Air conditioning repair: With A+ Derr at your side, you’ll never endure a muggy day without air conditioning again. We’ll keep you covered with 24/7 emergency repairs.
- Air conditioning replacement: We’re a family-owned business that promises old-fashioned customer service and replacement solutions that last. Our loyal clients can attest to it.
- Air conditioning maintenance: Wear and tear can shorten your system’s service life, but regular maintenance can reverse all the damage of the previous season. Our preventative maintenance checklist is comprehensive enough to protect your investment.
Start your next HVAC project with A+ Derr in Bardstown by calling (844) 577-9729.
Indoor Air Quality Specialists
You spend over a third of your life at home, so your indoor air quality has a direct impact on your health. According to the EPA, some homes are more polluted than urban centers, but we’ve got you covered. We install and maintain:
- Air purifiers: These innovative products can remove dander, allergens, and volatile inorganic compounds from your indoor environment. We’ll help you to choose the best filtration option for your health and pollution hazards.
- Humidifiers: The correct humidity balance can improve respiratory symptoms while raising your “real feel” temperatures over the dry season.
- Dehumidifiers: A whole-home system will overcome summer’s muggy weather while reducing the risk of household corrosion.
- HVAC ductwork: Our team is thorough and precise. Regular duct cleaning will improve your air quality dramatically.
Home Generator Services
Outages can bring your life to a standstill, but A+ Derr will keep you moving. We install and maintain whole-home generators that keep the lights on during a blackout. We install Generac brand systems, which are known for their reliability and low maintenance. A standby generator will give you peace of mind, turning on automatically even when you aren’t home.
Why Choose A+ Derr?
A+ Derr’s technicians are experienced with all the best HVAC brands in the business. This makes them sharp diagnosticians who can track even the most obscure problems. We’re a Lennox Premier Dealer and member of the Air Conditioning Contractors of America. This certification is a promise of competent installation and maintenance practices. Our Heating and Maintenance Plan will create a more affordable and convenient HVAC experience. We are, after all, in the business of keeping our clients comfortable.Experience service excellence with A+ Derr in Bardstown. Call (844) 577-9729 to request HVAC or generator service.
Recent Jobs and Reviews in Bardstown, KY
Job Locations and Reviews
Performed platinum level maintenance service on outdoor HVAC system, completing second visit of the annual plan. Conducted comprehensive electrical system inspection using Fieldpiece multimeter to test capacitor and circuit board components, and replaced standard CFI filter as scheduled per 2-year maintenance agreement.
Completed Platinum Level maintenance service on a 5-month-old system. Inspected and replaced air filter with proper size, and verified thermostat operation was functioning correctly in cooling mode at 72°F with 67% humidity. System is operating within normal parameters.
Completed Platinum Level maintenance on 6-year-old system with 20x20x5 filter. Performed electrical diagnostics using clamp meter, recording 58.8 amps on primary circuit. Secondary temperature readings measured at 41.1°F, confirming system is operating within manufacturer specifications.
Completed scheduled Platinum Level maintenance service on one HVAC system. Replaced KOCH air filter with new pleated media filter and inspected the control board/power supply module, noting proper connection of all wiring harnesses and verifying integrity of electronic components including transformers and circuit board. System is now operating at optimal efficiency per manufacturer specifications.
Diagnosed outdoor heat pump requiring whip replacement. Part has been ordered and payment for two labor hours has been collected. Will return tomorrow to complete installation of the new whip and restore system operation.
Diagnosed 5-year-old heating system with no heat issue where fan was operating but only delivering room temperature air. Performed system inspection, reset breaker, and verified thermostat functionality (Honeywell Pro Series set to 68°F in Heat mode). Restored proper heating operation through component testing and necessary adjustments.
Completed monthly Gold Level maintenance service on customer's single HVAC system. Performed comprehensive inspection including thermostat function check and electrical diagnostics with clamp meter to verify proper amperage draw. System is operating within normal parameters with no issues identified.
Completed diagnostic assessment of hydronic system and identified failed FP Thermister in the water loop as the source of malfunction. Documented model/serial numbers and photographed component for accurate part ordering. System currently operational but requires follow-up visit for thermister replacement once part arrives.
Delivered and replaced 20x20x5 HVAC filter to complete previously unfinished planned maintenance service. Filter was left at customer's entrance in original packaging for installation.
Responded to follow-up service call regarding heat pump defrost cycle concerns. Customer reported approximately 1/2 inch ice accumulation on outdoor unit blades. Diagnostic testing with multimeter confirmed system voltage reading of 91.3V at defrost control board, indicating proper power supply to defrost circuit. Verified defrost cycle operation and provided education on normal winter performance expectations.
Conducted a comprehensive replacement estimate for an aging HVAC system including furnace and AC condenser unit. Customer inquired about bundling options with tankless water heater installation and requested detailed warranty information. Visual inspection revealed weathered outdoor condenser on concrete pad with deteriorating gas meter/regulator connections and an older model furnace in need of replacement.
Performed Platinum Level maintenance on 1 HVAC system. Accessed ceiling hatch to inspect attic-mounted unit. Opened control panel to examine electrical components, noting appropriate connections on circuit board with no visible damage to wiring harness. System is operating within normal parameters. Confirmed filter location as per customer's special instructions.
Conducted preventative maintenance on customer's HVAC system. Verified proper burner operation with normal blue flame pattern in furnace. Replaced 20x25x1 air filter with customer's stock of Koch filters, noting customer replaces filters monthly. System functioning normally with no issues detected.
Performed annual platinum-level maintenance on HVAC system, including inspection and cleaning of the 16x20x4 filter system. Inspected burner assembly with visible blue flames indicating proper combustion. Addressed customer concern regarding kitchen vent airflow issue by checking and renewing the vent connection. All systems operating within normal parameters upon completion.
Performed routine platinum-level maintenance on HVAC system. Replaced heavily soiled 16x25x5 air filter (KOCH brand) which showed significant dust accumulation. Inspected blower motor assembly and electrical connections, noting normal dust buildup but all wiring (red, green, yellow, white) remained secure and functional.
Conducted follow-up visit to address customer concerns regarding increased electric bills potentially related to heat pump operation. Inspected smart HVAC control system interface and verified emergency heat settings. No active system notifications or errors were detected on the control panel. Explained proper thermostat operation to optimize energy efficiency.
Performed maintenance service on a 2-year-old HVAC system during initial site visit. Conducted electrical diagnostics using a clamp meter, recording amperage measurements of 4.17A. Inspected gas burner assembly, confirming proper ignition with consistent blue flames across all four burners and verifying gas valve functionality.
Completed scheduled Platinum Level maintenance on customer's HVAC system (2 years old). Replaced 20x20x1 and 20x20x4 filters as part of monthly service plan. Performed electrical system inspection using clamp meter, confirming proper amperage readings of 22.1. All components operating within normal parameters.
