Mini-Split & Ductless HVAC Systems
Mini-Split & Ductless HVAC Systems in Arlington Heights, IL
Whether you’re finishing a basement, upgrading a sunroom, or looking for more control over individual rooms, ductless systems offer a flexible, efficient solution. At AON Heating & Cooling, we install, repair, and maintain mini-split HVAC systems across Arlington Heights and the Chicagoland area, helping homeowners and businesses enjoy precise comfort—without the need for traditional ductwork.
From single-room applications to whole-home zoning, ductless systems give you control, efficiency, and year-round performance. Call or text (708) 315-4371 to learn more or schedule your consultation.
Ductless HVAC Installation, Repair & Maintenance
As your local mini-split experts, AON Heating & Cooling provides full-service support for all ductless heating and cooling systems. We work with top brands and design solutions around your layout, lifestyle, and energy goals.
Mini-Split Installation
Ductless systems are ideal for spaces where traditional HVAC isn’t practical—or where additional heating and cooling is needed. We install wall-mounted, ceiling-recessed, and floor-mounted mini-split systems that provide heating and cooling from a single, efficient unit. Installations are quick, clean, and minimally invasive, and we’ll help you decide how many indoor zones are needed for your home or building.
Ductless Repair
If your mini-split isn’t heating or cooling like it used to, is making strange noises, or shows an error code, we’ll troubleshoot and repair the system fast. Our techs are trained in all major brands and carry common replacement parts for same-day service in many cases.
Mini-Split Maintenance
Ductless systems still require care to stay efficient. We offer seasonal maintenance that includes filter cleaning, refrigerant level checks, performance testing, and full inspection of both indoor and outdoor units. Regular tune-ups help prevent breakdowns and keep your system running quietly and reliably.
Why Choose Ductless HVAC in Arlington Heights?
Mini-splits are one of the most versatile HVAC solutions on the market. They allow you to heat or cool only the spaces you’re using—perfect for home additions, attics, finished basements, or any area that’s tough to regulate with your central system.
Advantages of ductless mini-split systems:
- Zoned temperature control for individual rooms or areas
- Energy-efficient operation with inverter technology
- Heating and cooling in one system
- Easy installation without tearing into walls or ceilings
- No ductwork = no energy loss from leaky ducts
- Quiet, clean operation
- Wi-Fi enabled options for mobile control and scheduling
Whether you want a single-zone system for a garage or a multi-zone setup for your whole home, AON Heating & Cooling designs ductless solutions tailored to your space.
Common Mini-Split Issues We Fix
Even the best ductless systems need service from time to time. If you notice any of the following issues, it’s best to get it checked before it worsens:
- System not heating or cooling properly: Could be low refrigerant, clogged filters, or outdoor unit problems.
- Indoor units dripping or leaking water: Often caused by a blocked drain line or improper installation.
- Unresponsive remote or wall controller: Could be a communication or electrical issue between components.
- Unusual noises or vibrations: May point to a fan motor issue or misaligned components.
- One zone working, others not: Typically an issue with the control board, line set, or zone configuration.
Our team diagnoses the issue accurately and provides a solution that gets your system back to peak performance—fast.
From the initial consultation to installation or repair, we make the process easy, informative, and efficient.
- Call or Text (708) 315-4371: Tell us about your space and what you’re looking for. We’ll set up a time that works for your schedule.
- In-Home Evaluation: We’ll review your layout, heating and cooling goals, and recommend a system configuration that makes sense for your needs.
- Detailed Quote: You’ll receive a clear proposal with equipment specs, pricing, and scope of work before we start.
- Installation or Repair: Our technicians handle all wiring, mounting, line sets, and testing with clean, code-compliant workmanship.
- Ongoing Support: Whether you need a seasonal check-up or help adjusting your zones, we’re always here when you need us.
We handle a wide range of ductless heating and cooling equipment, including:
- Single-zone and multi-zone mini-split systems
- Wall-mounted, floor-mounted, and ceiling cassette units
- Heat pump mini-splits (heating + cooling)
- Hyper-heating units for cold weather performance
- Smart mini-splits with mobile app integration
- Energy Star–certified models
- Systems from Mitsubishi, Fujitsu, Daikin, LG, and more
If you’re upgrading or expanding, we can also integrate your ductless system with existing HVAC setups or IAQ equipment.
AON Heating & Cooling proudly provides mini-split services across Arlington Heights and the surrounding northwest suburbs. We work on homes, offices, retail spaces, and more—wherever precision comfort is needed.
We regularly serve: Arlington Heights, Palatine, Mount Prospect, Rolling Meadows, Schaumburg, Buffalo Grove, Elk Grove Village, Des Plaines, and other nearby Chicagoland neighborhoods.
Whether you’re looking for targeted comfort in one space or a ductless solution for your entire property, AON Heating & Cooling is ready to help. We bring the knowledge, tools, and care to get your mini-split system up and running the right way.
Call or text us at (708) 315-4371, or you can schedule your service online or send us a message.