A good HVAC system in your home can make hot and cold days much more bearable. If your heater or air conditioner isn’t keeping up with the outdoor temperatures, look to A+ Derr Heating & Cooling for help. Our expert technicians can uncover the root cause of your system’s issues and provide the most necessary solutions.Contact the A+ Derr team online or call 833-232-4328 to schedule HVAC services at your Boonville home.
Heating Services
Staying warm during the cold winter months requires a top-notch heating unit. When it’s time for repair, replacement, or maintenance, turn to the pros at A+ Derr. We can provide services for every type of heating unit, including:
- Furnaces: We guarantee that your furnace has a good heating element, blower motor, and air filter. We provide furnace installation, maintenance, and repairs.
- Heat Pumps: We’ll make sure your heat pump is still moving heat energy into your home from outside.
- Ductless mini-splits: We’ll ensure that your wall-mounted mini-split can still control the climate in your room.
Air Conditioning in Boonville, IN
Even in Indiana, the summer temperatures can reach well into the 80s and 90s. Is your AC ready to keep you cool all summer long? If not, turn to the A+ Derr team for assistance. We offer:
- Installation and replacement:Â Our team can replace your old, dying AC with a brand-new, energy-efficient model.
- Repair:Â Our staff can diagnose and resolve any problem going on with your AC unit.
- Maintenance:Â Our crew can perform a comprehensive, multipoint inspection of the internal workings of your AC system.
Whether you have an air conditioner, heat pump, or series of ductless mini-splits, look to A+ Derr for the services you need most. Call 833-232-4328 now or contact us online to get started.
Benefits of Upgrading Your HVAC System
Replacing any part of your HVAC system can make a world of difference in your home’s climate. Just a few perks of replacing your system include:
- Consistent heating and cooling for every room:Â Enjoy comfortable temperatures wherever you go in your house.
- Lower energy bills and a reduced carbon footprint:Â Save money and help save the planet simultaneously.
- Less chance of needing regular repairs and maintenance:Â New HVAC systems are much less likely to need repairs for a while after installation.
Reach out to A+ Derr online or call 833-232-4328 now to schedule HVAC system replacement services in Boonville.
Indoor Air Quality Services
Breathing the cleanest air possible is vital to your health. With the right indoor air quality services, you can rest easy knowing your air is pure. You may have low-quality air throughout your home if:
- You have experienced more allergies in recent months
- You notice layers of dust on your tables and surfaces
- Your HVAC filters seem dustier than ever before
Enjoy clean air every day with help from A+ Derr. Contact us online or call our team at 833-232-4328 to schedule IAQ services.
Why Choose A+ Derr?
Since 1975, A+ Derr has been resolving HVAC problems for clients throughout the Boonville region. Our fourth-generation family business treats every client like one of our own. You can count on us for free estimates, 24/7 emergency service, Lennox-brand HVAC units, and a 100% satisfaction guarantee.Schedule HVAC services in Boonville, IN, now by calling 833-232-4328 or contacting us online.
Recent Jobs and Reviews in Boonville, IN
Job Locations and Reviews
Responded to no heat call for 4-year-old system. Upon inspection, found customer had shut down unit after detecting burning odor. Performed comprehensive electrical inspection, identifying wiring issues at the control board connections. Repaired loose connections and tested system operation through complete heating cycle. System now functioning properly with normal airflow restored and temperature returning to setpoint.
Successfully completed installation of a 180 tankless water heater in Boonville residence. Mounted unit on utility closet wall with proper ventilation piping through ceiling, connected copper supply/return lines, and installed blue expansion tank at base. System was tested and is functioning correctly.
Responded to service call for water heater reporting error code E110 with no hot water. Inspected mechanical room containing tankless water heater system with PVC venting, adjacent furnace unit, and Culligan water filtration system. Diagnosed and resolved issue by resetting error code and verifying proper operation of heating elements and thermostat.
Completed 6-month scheduled maintenance visit. Replaced 20X25X5 air filter and verified system operation. Temperature readings indicated proper functionality at 58.8°F, and equipment was confirmed level using spirit level to ensure optimal performance.
Responded to no heat complaint on 20-25 year old system. Upon inspection, found no airflow and inoperable thermostat. Diagnosed failed control board with visible signs of component degradation and dust accumulation. Replaced main circuit board and restored system to proper operation.
Responded to no heat call for 6-year-old system with downstairs unit not producing airflow. Upon inspection of the furnace, found faulty control board causing system failure. Replaced control board, verified proper operation of blower motor and heating components, and confirmed system now maintaining proper temperature differential between thermostat setting and ambient temperature.
Performed monthly Platinum Level maintenance on 1 HVAC system. Replaced 20x20x5 filter (14 years old). Verified system operation with temperature readings showing 77.4°F at the register, indicating proper cooling performance.
Performed annual Gold Level maintenance on 9-year-old HVAC system. Inspected outdoor unit, including electrical connections, capacitor, and control board. Cleaned debris from unit base and verified system operation. Customer is due for renewal; previous service was in 07/2025.
Successfully installed a complete 2-ton, 18 SEER Lennox HVAC system at a log cabin-style residence. The outdoor condensing unit was properly positioned on a concrete pad with appropriate electrical connections and disconnect box. Indoor installation included furnace unit with PVC ventilation system in the utility room, completing the full system replacement as specified in the sales order.
Responded to service call for 6-year-old dual-system HVAC unit where downstairs unit was automatically switching from heat to cooling mode without user input. Diagnostic testing revealed significant corrosion and deterioration at connection points, particularly at the control board junction. Repaired damaged wiring connections and replaced corroded terminals to restore proper thermostat communication, successfully resolving the mode-switching issue.
Successfully completed installation of a complete 2.5-ton, 15.5 SEER Lennox HVAC system with 97% efficiency furnace. System includes new indoor furnace unit with PVC venting and outdoor condensing unit properly secured on concrete pad with electrical connections to junction box.
Responded to service call for an AC system that would not turn off, causing excessive heat in the home. Upon inspection, discovered faulty wiring connections at the thermostat terminal causing the system to run continuously. Repaired damaged wires and properly secured all connections in the terminal block, restoring normal operation of the 19-year-old system.
Completed inspection of residential water line system requiring replacement. Examination of crawlspace revealed aged, deteriorated supply pipes with significant dust accumulation and multiple compromised joints. Provided estimate for complete replacement of existing water lines to prevent potential leaks and ensure proper water pressure throughout the home.
Completed annual Platinum Level maintenance service on two HVAC systems (7 and 9 years old). Replaced both air filters (16x20x5 and 20x20x5) which showed significant dust accumulation. Inspected furnace electrical components, circuit board, blower motor, and gas valve assembly; all systems functioning properly and ready for continued operation.
Conducted inspection of crawlspace plumbing infrastructure. Examined multiple PVC drain lines with Y-junction fittings and identified potential issue with copper supply pipe showing discoloration. Assessed HVAC ducting and vapor barrier condition while documenting the current state of plumbing system for future reference.
Conducted follow-up site visit to prepare for tomorrow's HVAC installation. Assessed the bathroom renovation area where the existing mechanical unit is exposed with connected PVC piping. Old equipment scheduled for removal prior to new system installation.
Completed installation of a Lennox 2-ton 19 SEER heat pump system with air handler and integrated 2-zone control system. Installed properly sealed ductwork with appropriate transitions and connections as evidenced by foil-taped seams. System was placed in a utility area alongside existing water heater with all manufacturer specifications followed for clearances and connections.
Conducted annual Gold Level maintenance on a 6-year-old HVAC system. Inspection revealed significant dust and debris accumulation in the ductwork and ventilation grates, with possible mold growth on interior duct surfaces. Performed thorough cleaning of accessible components and documented areas requiring additional attention.
Conducted a comprehensive HVAC replacement estimate for a log cabin currently using propane heating system. Evaluated existing outdoor condenser unit located on concrete pad adjacent to the cabin exterior and reviewed system specifications via technical diagrams. Customer expressed interest in exploring both propane retention and electric conversion options for improved efficiency.
Conducted comprehensive evaluation of existing HVAC system including a Lennox Elite Series furnace and associated ductwork. Provided customer with replacement options based on assessment of current equipment condition, efficiency ratings, and home requirements. Documented system configuration with detailed photos for accurate quote preparation.