HVAC & Generators in Shepherdsville, KY
With the average temps throughout the year ranging from 28 to 88 degrees in Shepherdsville, you need HVAC you can rely on. That’s where the team at A+ Derr Heating & Cooling steps in. Since 1975, we’ve been providing service to the Shepherdsville community. Our team carries decades of experience with homes just like yours.
You can schedule a time for A+ Derr to visit your home in Shepherdsville by contacting us online or calling (844) 577-9729.
Your Local Shepherdsville Heating Experts
When the cold rolls in, you can count on us to be there for you. We service various heating systems to help as many residents as possible. Our team offers heat pump, boiler, geothermal, and furnace replacement, repair, and maintenance services in Shepherdsville. Additionally, we offer emergency heating services when your heating system fails you in the bitter cold.Schedule an appointment with A+ Derr in no time. Call (844) 577-9729 to request service for your heating system.
Air Conditioning Services You Can Trust
A Kentucky home without a functioning air conditioner in the heat is an unlivable one. A+ Derr offers a full set of AC services for residents in Shepherdsville, KY. Our AC services include the following:
- Air conditioning repair
- Air conditioning replacement and installation
- Air conditioning maintenance
On top of traditional cooling services, we’re also here for you during emergencies. If you find yourself stuck in the sweltering heat with no AC, the team at A+ Derr is here. Our emergency air conditioning repair services are there to prevent you from suffering from the heat.
Indoor Air Quality Specialists
An important aspect of your home’s health is the indoor air quality. Our indoor air quality services include the following:
- Duct cleaning: Harmful allergens and pollutants build up in ductwork, so it’s important to get your ducts cleaned regularly.
- Air purifiers:Â Ensuring that your breathing air stays safe, an air purifier will go a long way to keep your home safe.
- Humidifiers:Â Sometimes, your home can become too dry and cause the air to become irritable.
- Dehumidifiers:Â Dehumidifiers are a great option to remove excess moisture and prevent mold.
If you want to see how indoor air quality services can improve your home, call (844) 577-9729 to request an appointment with A+ Derr.
Home Generator Services
A great way to improve your home’s stability is by installing a Generac generator. With the severe weather that rolls through the Kentuckian region, power outages are something every homeowner has to consider. But when you let us install a Generac generator in your home, you won’t have to worry about losing power.
Why Choose Us?
For nearly 50 years, the team at A+ Derr Heating & Cooling has provided outstanding work to residents throughout the Kentuckian region. On top of glowing reviews, every job we do has a 100% satisfaction guarantee. After all, you deserve the best for your home’s HVAC system.
Schedule HVAC or generator services for your Shepherdsville home today. Contact A+ Derr online or call (844) 577-9729.
Recent Jobs and Reviews in Shepherdsville, KY
Shepherdsville, KY at a glance
A+ Derr Heating & Cooling has completed 20 jobs in Shepherdsville, KY between January 2026 and March 2026.
The most recent job was on March 4, 2026.
A+ Derr Heating & Cooling has completed 69 jobs in Shepherdsville, KY in the last 12 months.
Job Locations and Reviews
Responded to no-heat call for a 6-year-old system still under 10-year warranty. Diagnosed furnace issue in crawlspace where unit was blowing air but not producing heat. Repaired faulty ignition component and verified proper system operation, restoring heat to the home which had dropped to 60°F.
Conducted annual Platinum Level maintenance on 2-year-old HVAC system. Performed electrical testing using multimeter (reading 23.6) and inspected furnace unit and water heater connections. Replaced 16x20x5 filter during this second maintenance visit; customer renewed service agreement.
Installed new flexible ductwork in sizes 6", 7", and 8", along with 10' of 4"-26 gauge metal pipe and two 4"-26 gauge elbows. Secured metal ductwork to joists with proper supports and sealed connections with metallic foil tape. Additionally installed white dryer vent cap on exterior wall to complete the ventilation system.
Completed annual platinum-level maintenance on 1-year-old HVAC system during second scheduled visit. Performed comprehensive electrical diagnostics using multimeter and clamp meter to verify proper voltage readings and amperage draw (23.5A), with particular focus on circuit board functionality and connection integrity. Replaced air filter, renewed service agreement, and collected necessary documentation.
Diagnosed failed compressor (ZP31LXEPFV800) in outdoor unit requiring replacement. Ordered compressor and liquid line drier for system repair. Will perform vacuum service and recharge with R-410A refrigerant upon part arrival to restore cooling operation.
Completed platinum level maintenance service on a 1-year-old Lennox HVAC system (3rd annual visit). Replaced 20x20x5 filter, performed system inspection, and verified proper electrical operation with amp readings measuring 66.3 on the Klein Tools meter. System is functioning within normal parameters with indicator lights showing proper operation.
Performed scheduled annual maintenance on 8-year-old HVAC system with 16x25x5 filter. Conducted comprehensive electrical testing using Klein Tools CL800 clamp meter, measuring amp draw at 3.12 and inspecting all electrical connections. Verified proper operation of safety components including MET-SWITCH and examined wiring integrity throughout system.
Conducted platinum level maintenance on a 2-year-old system experiencing intermittent short cycling. Performed comprehensive diagnostics including electrical testing with clamp meter on the outdoor condenser unit, and replaced 20x20x2 filter as part of first annual service visit. System is now operating within normal parameters with no short cycling observed.
Completed monthly Gold Level maintenance service on a 3-year-old HVAC system. Replaced 20x20x1 filter, inspected blower wheel assembly for proper operation, and performed temperature differential testing which showed readings within normal range. System is functioning properly with no issues detected.
Conducted site visit to evaluate thermostat relocation requirements. Identified optimal placement near the return air vent in living room as requested. Documented current thermostat location and proposed new location with photos for installation planning.
Completed scheduled Platinum Level maintenance on HVAC system with 16x20x5 filter. Verified proper thermostat operation, confirming temperature settings and programming functionality. Conducted temperature differential testing between supply and return air, with readings indicating system is performing within normal parameters.
Completed Platinum Level maintenance on customer's HVAC system (1st annual visit). Replaced standard 16x25x1 air filter and performed Professional Service Standard. Inspected condensate drain system and PVC piping connections, utilizing diagnostic equipment to verify proper operation. System is functioning correctly with all maintenance items addressed according to Platinum service specifications.
Conducted initial assessment for basement half bath conversion to full bath. Documented existing plumbing infrastructure, including vertical PVC drainage pipe. Evaluated structural elements and identified necessary demolition areas. Inspected available space for new fixtures and assessed electrical components that will require relocation during renovation.
Redirected and connected the furnace condensate drain line to the under-house plumbing system instead of discharging outside. Verified proper installation of the Lennox outdoor unit and documented the completed work with photos.
Installed new ductwork system in unfinished basement area to improve ventilation, connecting to existing Carrier HVAC unit. Work included installation of rectangular and circular metal ducts with proper seaming and connections to ensure efficient airflow throughout the space.
Conducted diagnostic assessment of HVAC system due to insufficient airflow through vents. Inspection of ductwork revealed aging flexible ducts with significant dirt buildup and partial blockage. Replaced deteriorated dryer vent hose that passes through floor, improving ventilation efficiency and safety.
Responded to no-cool call for 10+ year old system. Discovered severe evaporator coil fouling with significant dirt accumulation causing restricted airflow. Replaced dirty air filter which was contributing to system inefficiency. Cleaned accessible coil surfaces to restore proper heat transfer and system operation.
Responded to callback regarding temperature inconsistency with newly installed furnace. Diagnosed faulty remote sensor showing error code and confirmed thermostat was not maintaining consistent temperature between set point (75°) and actual reading (fluctuating to 70°). Provided customer with information about humidifier options as requested.
Responded to no-heat call for system less than 10 years old. Inspection revealed outdoor water line leaking at connection point to exterior wall, with active dripping causing potential system pressure issues. Repaired plumbing connection and applied proper insulation to prevent future freezing and restore normal heating operation.
Conducted comprehensive evaluation of residential electrical system for potential generator installation. Inspected 200A main breaker panel with natural gas availability, documenting current circuit configuration and load distribution to determine appropriate generator sizing and connection requirements. Panel appears in good working condition with adequate capacity for generator integration.
