Since 1975, the A+ Derr Heating & Cooling professionals have been helping homeowners in Henderson, KY, with their HVAC services. As a 4th generation business, we’re committed to delivering superior quality work and customer service.
We want you to be comfortable in your home. That’s why we offer 24/7 emergency service. We also have a 100% satisfaction guarantee. If you’re unhappy with a product we installed after the 1st year, we’ll buy it back.
Get the best HVAC services in Henderson. Call A+ Derr at 833-232-4328 or contact us online to schedule an appointment today!
Our Heating Services
You need a hardworking and reliable heating system to stay warm during our cold Henderson winters. For expert heating system services, choose A+ Derr. Our experienced professionals can help you with any problem – from minor repairs to major fixes. Our heating services include installation, replacement, repair, and maintenance.
Our trained and experienced professionals are ready to help you maintain your equipment and heating system units. We service:
- Furnaces
- Boilers
- Heat pumps
- Geothermal units
- Packaged units
Air Conditioning Services
You count on your air conditioning system during the long summer months to keep you cool. At A+ Derr, our courteous and reliable technicians can help you keep your air conditioning system working properly. From ductless mini-splits to central air conditioning, we offer a comprehensive list of services to keep you and your family out of the summer heat in Henderson.
Our AC services include:
Schedule your heating system appointment today by calling A+ Derr at 833-232-4328 or contacting us online!
Signs You Need HVAC Service
It can help homeowners to know when their HVAC system isn’t working correctly. Here are some common signs that it’s time to call for trustworthy HVAC services. Common signs include:
- Strange noises If your HVAC system is making weird sounds like rattling, grinding, or squealing, it could mean that there is a worn or loose part that needs to be replaced or adjusted.
- Unusual odors If your HVAC system is giving off strange smells, there could be a buildup of dirt, dirt, or mold in the system or ducts.
- Inadequate heating or cooling If your HVAC system isn’t heating or cooling properly, you may have a clogged air filter, blocked ductwork, or a malfunctioning component.
- High energy bills Climbing energy bills are a sign your HVAC system isn’t running efficiently.
- Short-cycling: Short-cycling is when your system frequently turns on and off. This can happen from a malfunctioning thermostat, a clogged air filter, or a problem with the system’s compressor or fan.
For expert HVAC services in Henderson, count on A+ Derr. Call us at 833-232-4328 or contact us online for a free estimate today!
Indoor Air Quality in Henderson
Make the air in your Henderson home as clean as possible with indoor air quality services from A+ Derr. With proper tools and techniques, like duct cleaning, we can help you reduce the dust, allergens, bacteria, and other irritants in your ductwork.
Other benefits of duct cleaning include:
- Improved HVAC efficiency:Â Clean air ducts offer fewer blocks for your HVAC system, making it easier to heat and cool your home. This can lead to lower energy bills and improved comfort.
- Reduced fire risk:Â The buildup of dust and debris in your air ducts can increase the fire risk. Regular duct cleaning can help reduce the risk of a fire hazard.
- Longer HVAC life span:Â Clean ducts can help extend the life of your HVAC system and help keep it running efficiently for longer.
Get clean indoor air with A+ Derr. Contact us today at 833-232-4328 or schedule online today!
Why Choose A+ Derr?
At A+ Derr, we understand how much you care about your Henderson home. That’s why we ensure our technicians are certified and ready to deliver exceptional customer service. We stand behind our work with a 100% satisfaction guarantee.
We’ll work with you to find the best HVAC solutions for your needs and budget. Plus, we offer our Maintenance Plan for added convenience and cost savings.
When you choose A+ Derr, you choose the local experts committed to providing you peace of mind. Let us help you keep your home comfortable and safe all year round.Count on A+ Derr for your HVAC services in Henderson. Call us at 833-232-4328 or contact us online today!
Frequently Asked Questions
When should I have my HVAC system serviced?
You should have your heating system serviced before the cooling season and your cooling system before the heating system. If you have a system that both heats and cools, like a heat pump, it is recommended that you get professional service between the heating and cooling seasons.
Is good indoor air quality important to your home?
In short, indoor air quality is far more polluted than outdoor quality. These pollutants include allergens, dirt, mold, and much more. These contaminants affect your family’s health and, sometimes, sleep. Installing an air cleaner, purifier, or scrubber can improve your home’s air quality.
How often should I change my system’s air filters?
Air filters should be replaced at least every 90 days. However, you should replace your filters more often if:
- You have more than two pets that shed fur
- Someone in your home has respiratory issues
- Your home is in an area that has more allergens
Recent Jobs and Reviews in Henderson, KY
Job Locations and Reviews
Completed annual planned maintenance on 8-month-old HVAC system during second visit. Replaced 16" x 25" x 5" pleated air filters and documented installation with date marking on filter box label. Inspected system components and verified proper operation. Customer approved annual maintenance renewal for continued service.
Completed comprehensive HVAC system estimate for replacement of aging Coleman Evcon Presidential equipment showing significant wear, dirt accumulation, and operational concerns. Documented existing indoor coil unit and air handler configuration, photographed current filter installation (3M 16x20x1), and assessed overall system condition to provide customer with Green A+ rated replacement options for improved efficiency and reliability.
Conducted comprehensive site evaluation for complete HVAC system and ductwork replacement estimate. Assessed existing outdoor condenser unit showing significant age-related deterioration, accumulated debris on fan grille, and vegetation encroachment around base requiring clearance. Evaluated interior ductwork infrastructure and identified corroded metal components with heavy rust and oxidation affecting system efficiency. Documented current system conditions through photographic evidence to support replacement recommendations. Prepared detailed estimate options including full AC system and ductwork replacement as well as alternative ductwork-only replacement scenario per customer request.
Responded to no-cool condition on 4-year-old residential air conditioning system that failed to restart after initial operation on first day of seasonal use. Upon inspection, diagnosed failed condenser fan motor preventing proper heat rejection at outdoor unit. Replaced defective condenser fan motor with OEM equivalent replacement, verified proper electrical connections, and tested unit operation through complete cooling cycle. System restored to full operational capacity with proper airflow and temperature differential confirmed.
Conducted follow-up site visit to assess disconnected drain lines from toilet and bathtub that were actively draining into the crawlspace. Documented existing plumbing conditions including failed PVC drain connections and improper drainage routing beneath the structure. Photographed crawlspace plumbing system showing vapor barrier installation, exposed floor joists, and compromised drain assembly requiring immediate replacement to prevent structural damage and restore proper wastewater conveyance.
Completed installation of 50-gallon gas tall water heater (57 1/4" height x 22" width) in residential utility room with all required connections, shut-off valves, and pressure tank integration using copper piping and brass fittings. Additionally installed new outdoor spigot with dedicated waterline connected to existing drain system via pro-press copper connections, including new shut-off valve at spigot location and proper removal and disposal of old spigot. All plumbing connections tested and verified operational with no leaks detected.
Responded to no cooling call with no airflow from vents and system not attempting to start. Upon arrival, performed complete system diagnostic on residential split HVAC system. Discovered failed blower motor in air handler unit preventing indoor fan operation and airflow distribution. Additionally identified defective run capacitor on outdoor condensing unit preventing compressor from starting. Replaced blower motor assembly in air handler with OEM equivalent motor, ensuring proper amperage and CFM specifications. Installed new dual-run capacitor on condensing unit with correct microfarad ratings for both compressor and condenser fan motor. Verified all electrical connections, tested voltage and amperage readings at both units to confirm proper operation. Cycled system through multiple cooling cycles, confirmed adequate airflow at supply registers, and verified temperature split across evaporator coil within manufacturer specifications. System restored to full operational status with p
Completed annual planned maintenance on 2-year-old HVAC system. Performed comprehensive inspection of air handler unit and associated components including PVC exhaust and condensate drain lines. Replaced 16x25x5 air filter. Inspected ductwork and identified significant dust and debris accumulation on interior surfaces requiring attention. Verified proper operation of all mechanical components and connections. System operational upon completion of first annual maintenance visit.
Completed full HVAC system installation including a 3-ton 15.5 SEER Lennox outdoor condensing unit (Model ML14KC1-036) with R-454B refrigerant and a tankless water heater system. The outdoor unit was installed with proper electrical connections at 208/230V, single phase, 60Hz specifications. Inside the mechanical room, installed wall-mounted tankless water heater with complete copper piping configuration including multiple shut-off valves for isolation and service access. Routed all refrigerant lines, condensate drainage via white PVC piping, and electrical conduit to code. System was pressure tested, evacuated, charged to manufacturer specifications, and verified for proper operation of both heating and cooling functions.
Responded to no cooling complaint on residential split system over 10 years old with airflow present but no temperature drop. Upon inspection, found outdoor condenser unit operational and evaporator coil with significant corrosion and deterioration to cabinet and components. Diagnosed system failure due to age-related component degradation and recommended full system replacement given the advanced deterioration of equipment and age of unit exceeding typical service life.
Responded to no cooling complaint on aging air conditioning system. Performed diagnostic inspection of HVAC equipment, accessing furnace unit to examine blower motor assembly, gas valve components, and electrical connections. Verified proper operation of indoor air handler components and documented system configuration including ductwork, condensate drainage lines, and ventilation infrastructure for service records.
Responded to warranty follow-up call for heat pump system less than one year old displaying "OU Inverter" error code and inadequate heating performance with thermostat set at 72°F. Diagnosed faulty inverter board on outdoor unit through visual inspection and electrical testing, confirmed system operating in heating mode but with compromised efficiency. Documented inverter board model number, captured detailed photographs of circuit board assembly showing toroidal inductors, integrated circuits, and component layout, and recorded amperage readings of 8.5A during diagnostic testing. Ordered replacement inverter board under warranty coverage with red priority status due to reduced heating capacity, estimated two-hour installation time upon part arrival, no additional helper required for completion.
Completed free HVAC replacement estimate for residential property with aging but operational heating and cooling system. Evaluated existing gas furnace and air conditioning setup, documented current equipment condition and ductwork configuration, and provided comprehensive replacement options excluding heat pump alternatives per customer specifications.
Conducted comprehensive estimate for mini-split system installation in office space. Evaluated existing electrical infrastructure including circuit breaker panel capacity and available circuits to support new HVAC equipment. Assessed office layout, ceiling configuration with drop tiles and existing ductwork, and determined optimal placement for indoor air handler unit to provide efficient climate control for workspace. Discussed customer preference for portable cooling solution but recommended permanent mini-split installation as superior option for reliability and performance. Documented site conditions and electrical service capacity to prepare detailed proposal for ductless heat pump system replacement.
Completed second annual Gold Level planned maintenance visit on 3-year-old single-system HVAC unit. Performed comprehensive inspection of furnace and air handler components, verified proper operation of all mechanical systems, and documented equipment condition with photographic records showing basement installation with vertical furnace unit, PVC condensate drainage, and metal ductwork assembly. Inspected 20x25x4 polarized filter housing and confirmed airflow pathways clear of obstructions.
Conducted comprehensive HVAC system replacement estimate at residential property. Performed thorough inspection of existing equipment located in crawl space, documenting current system configuration and accessing confined areas between floor joists to assess ductwork routing and mechanical components. Evaluated structural space conditions, existing duct system integrity, and available clearances for new equipment installation to provide accurate replacement recommendations and ensure proper system sizing for the home.
# Service Summary Completed annual Platinum Level planned maintenance on a 9-year-old HVAC system. Replaced 16x25x5 filter and performed comprehensive system inspection per maintenance protocol. # Work Performed Conducted thorough annual maintenance service on single HVAC system as part of Platinum Level service agreement. Replaced system air filter with new 16x25x5 filter to ensure optimal airflow and system efficiency. Performed complete visual inspection of equipment and surrounding areas, documenting conditions with photographic records. During inspection, identified significant ceiling damage in the immediate vicinity of the service area, with collapsed drop ceiling tiles exposing structural wooden joists and framework. Damage appears unrelated to HVAC system operation but was documented for customer awareness. Service area includes adjacent utility space housing Bradford White water heater installation with organized plumbing supply storage. Completed all standard Platinum L
Completed comprehensive inspection of 18-year-old Goodman cold climate heat pump system for potential full replacement. Examined refrigerant lines, electrical connections, and condensate drainage components, noting normal wear consistent with system age. Documented current installation configuration to facilitate accurate replacement quote for new system planned for Fall 2026 implementation.
Conducted a replacement assessment of an aging HVAC system showing significant deterioration, including oxidized copper coils and worn internal components. Evaluated the current installation configuration in the enclosed space and documented the specifications needed for proper replacement. Recommended upgrading to a new energy-efficient unit with proper ventilation requirements.
Responded to a no-heat call for an 8-year-old Carrier system (manufactured May 2018) using R-410A refrigerant. Diagnosed faulty control board causing system non-operation despite thermostat call for heat (set at 68°). Replaced control board, verified proper ignition sequence, and confirmed normal operation with adequate airflow through all vents.
