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
Performed scheduled 3-month maintenance service on NSSU unit. Inspected Lennox control board and verified proper connections of thermostat wiring terminals (W1, W2, Y1, Y2). All electronic components including circuit board, heat sink, and wire connections were found in normal working condition with no signs of damage or corrosion.
Performed comprehensive assessment of 20-year-old HVAC system requiring replacement. Evaluated electrical panel capacity and workspace conditions for potential installation options. Recommended cost-effective replacement solutions including mini-split system alternatives based on customer's efficiency requirements and existing home infrastructure.
Performed annual Platinum Level maintenance on Daikin HVAC system (installed 11/28/25). Inspected control board circuitry and connections, verified proper operation of compressor unit, and examined refrigerant lines and evaporator coil assembly for optimal performance. System is functioning properly with all components in working condition, though minor dust accumulation was noted and cleaned.
Responded to service call for disconnected ductwork. Located and reattached loose supply duct in crawlspace that was improperly discharging conditioned air. Verified proper airflow restoration to living space and confirmed system operation after repair.
Successfully installed warranted part in customer's plumbing system, replacing faulty valve/sensor component that was showing signs of corrosion. Verified proper connection of electrical components and tested system functionality after installation, confirming resolution of the issue with all connections secure and operational.
Responded to no-heat call for 20-year-old furnace that was completely non-responsive despite thermostat being set to 66°F (actual indoor temp 54°F). Diagnosed faulty control board and replaced component, restoring proper system operation. Verified all connections at thermostat and conducted full system test to confirm heating function has been successfully restored.
Installed a complete 2.5-ton Lennox HVAC system with 14 SEER condenser unit and 97% efficiency furnace. System includes properly connected PVC exhaust/intake venting and all necessary ductwork connections. Both indoor furnace unit and outdoor condenser were positioned and secured according to manufacturer specifications, with the outdoor unit mounted on a concrete pad adjacent to the residence.
Performed planned maintenance on a 1-year-old residential HVAC system with 25x25x5 filter during second scheduled visit. Inspected furnace operation, verified proper duct sealing, and confirmed tankless water heater integration with heating system. System is functioning within normal parameters with all components properly installed in basement mechanical room.
Conducted inspection of sewer system in response to reported cross-contamination between bathroom fixtures and strong sewage odor. Located and accessed outdoor sewer cleanout, revealing significant blockage in main line with standing water. Visual inspection of pipe interior showed deterioration of concrete walls with visible corrosion and sediment buildup, indicating potential need for line cleaning and possible pipe repair.
Performed comprehensive inspection of aging HVAC system showing significant copper line corrosion and oxidation at connection points. Documented deteriorated ductwork with improper insulation and noted measurements (20"x15" supply plenum) for replacement sizing. Recommended complete system replacement due to extensive corrosion damage and potential efficiency/safety concerns with current installation.
Responded to a red-tagged 12-year-old heating system where gas company had identified safety concerns. Conducted CO testing near air vents, obtaining readings of 4 PPM, and performed comprehensive inspection of the Goodman outdoor unit. System remains deactivated pending necessary repairs to meet safety compliance requirements.
Completed Platinum Level maintenance on 6-year-old HVAC system with 16x25x5 filter. Performed airflow measurements at ceiling registers with UEi instrument, recording 25 CFM. Conducted temperature diagnostics on ductwork with readings of 69°F, confirming proper system operation.
Diagnosed high limit switch fault on 7-year-old HVAC system displaying 4 red flash code. System was operational but unable to heat above 68°F despite thermostat setting of 72°F. Inspected control board connections and wiring harness, verified integrity of electrical components, and reset high limit switch. System now functioning properly with full temperature range capability.
Completed installation of a Lennox 3-ton, 18 SEER, 99% efficiency complete HVAC system. Installed polarized filter and ran gas line to water heater with tee and shutoff for future expansion. System includes S40 Smart Thermostat for temperature and air quality control.
Completed monthly maintenance service on 5-year-old HVAC system per Platinum Level agreement. Replaced 16x25x2 polarized filter and inspected system components in basement installation area. Equipment functioning properly with no issues identified.
Conducted comprehensive HVAC replacement consultation for 18-year-old system. Inspected existing Honeywell thermostat wiring configuration and outdoor AC unit, which shows typical age-related wear. Customer is evaluating competitive quotes for system replacement and seeking more cost-effective options.
Completed panel replacement service (WO #15958), replacing outdated electrical panel with new circuit breaker panel featuring dual columns of properly labeled circuit breakers. Installation included proper mounting to concrete block wall with main breaker switch and comprehensive circuit directory for improved safety and functionality.
Performed scheduled Platinum Level maintenance on 8-year-old Amana HVAC system located in attic space. Replaced 16x25x4 monthly filter, inspected ductwork connections and PVC condensate lines for proper function. System operating within normal parameters following service.
Diagnosed 20-year-old Coleman wall-mounted heating unit with ignition system failure indicator. Performed comprehensive inspection of ignition assembly components and determined unit requires replacement due to age and unavailability of parts. Recommended installation of new energy-efficient system.
Completed scheduled Gold Level maintenance for dual HVAC system setup. Inspected and documented 20X5X1 filter size requirement for first unit, examined ductwork and connection points, and verified system information from equipment data plate. Both systems were cleaned and serviced according to manufacturer specifications, with all maintenance tasks documented photographically for service records.