Ductless Mini-Split Installation in Bolingbrook, IL

Ductless Mini-Split Installation by Windy City HVAC Repair

Windy City HVAC Repair installs Rheem and Durastar ductless mini-split heat pumps in Bolingbrook, all of Joliet and the nearby southwest suburbs. A mini-split heats and cools individual rooms without ductwork, which works well for additions, bonus rooms and basements. We’re an enrolled ComEd participating contractor; rebates are subject to change or the program may end.

Every house has that one room — the bonus room over the garage that bakes in July, the sunroom nobody uses in January, the finished basement that never feels quite right. A ductless mini-split heats and cools that space directly, without new ductwork and without overworking the rest of your system. Windy City HVAC Repair installs ductless systems for homeowners in Bolingbrook and the surrounding suburbs from our office at 400 N Schmidt Rd.

Call (312) 500-4822 · Request a ductless estimate

Call (312) 500-4822
Eddy, the Windy City HVAC Repair dog, by a lit riverwalk at dusk

What a ductless mini-split is

A mini-split has an outdoor heat pump connected to one or more indoor units by a small refrigerant line that runs through a wall opening a few inches across. Each indoor unit has its own thermostat, so each room or zone can be set independently. Because it’s a heat pump, the same system provides both air conditioning and heat. Want whole-home heating and cooling through your existing ducts? See ducted heat pump installation.
Windy City HVAC technician working on a furnace control board

The brands we install: Rheem and Durastar

  • Rheem Floating Air™ mini-splits come in single-zone and multi-zone options, with wall-mounted, ceiling cassette, concealed ducted and air handler indoor units depending on the series. Rheem states that its Floating Air Prestige® Series models are ENERGY STAR® certified.
  • Durastar offers single-zone and multi-zone mini-split heat pumps. Durastar states that its Sirius Heat™ single-zone heat pumps can maintain up to 100% heating capacity at 0°F and operate in heating mode down to -22°F. Durastar also notes that its warranty may be voided if the system isn't installed by a licensed HVAC contractor.
  • Specific features vary by model; we'll review the specifications of the exact system we quote.
Windy City HVAC Repair service van

Where ductless makes sense in Bolingbrook homes

  • Additions, sunrooms and three-season rooms that were never connected to the main ductwork
  • Bonus rooms over garages that run hot in summer and cold in winter
  • Finished basements with too few supply vents
  • Upper floors in two-story homes that stay warmer than the main level
  • Home offices where you want separate control without changing the whole house's settings
  • Older homes in nearby towns without ductwork at all, where adding central air would mean tearing into walls

Rebates: ComEd incentives in 2026

ComEd offers rebates on qualifying ductless systems. Rebates are subject to change, and the program may end. Ask us what currently applies. Systems need AHRI certification, and the home must be on a ComEd residential account; customers in towns served by municipal electric utilities may not be eligible. We’ll help you confirm what applies before you buy.

Rebates are subject to change, and utility programs may end or change without notice. Eligibility is determined by the utility, not by Windy City HVAC Repair.

Call (312) 500-4822 to schedule a ductless assessment.

Call (312) 500-4822
Windy City HVAC technician working on an outdoor air conditioner unit
Windy City HVAC Repair van on a snowy suburban street for a winter service call
Windy City HVAC Repair van parked by a downtown pedestrian bridge
Town clock tower and park in summer and fall in the southwest suburbs
Town clock tower in summer and in winter snow

Ductless mini-split FAQ

Our ductless systems are rated for heating and cooling in Illinois. We’ll help you pick the right model for how you’ll use the space and whether you have backup heat.

It depends on the system. Multi-zone outdoor units can serve several indoor units; we’ll size it to your rooms.

ComEd offers rebates on qualifying ductless systems. Rebates are subject to change, and the program may end. Ask us what currently applies. We’ll check the model’s AHRI certificate with you.

Yes, including Romeoville, Plainfield, Joliet and other nearby suburbs.

The price depends on the number of zones and indoor units, the type of indoor unit (wall-mounted, ceiling cassette or ducted), the system’s efficiency and cold-climate rating, the length of the refrigerant line, and any electrical work needed. A single-zone system for one room costs less than a multi-zone system for the whole house. We look at the space and give you an upfront quote. Call 312-500-4822.

A single-zone installation is often done in a day. A multi-zone system, a long line-set run or new electrical circuits can take longer. We’ll confirm the schedule when we quote your project, so you know what to expect before installation day.

It can for some homes, but not all. Many Bolingbrook homes use a mini-split alongside their existing furnace and AC to fix problem rooms. A whole-home ductless system can work in a well-insulated home, but whether you need backup heat depends on the model and the home. We’ll go over the options with you during the assessment. If whole-home heat is the goal, compare furnace replacement and heat pump installation.

Rinse or vacuum the washable filters in each indoor unit about once a month during heavy use, and keep leaves, snow and debris away from the outdoor unit. A yearly professional service, including cleaning the coil and blower wheel, checking the drain and testing performance, helps prevent odors, clogs and loss of efficiency.

Yes. Indoor units are generally much quieter than a window AC because the compressor sits outside. The exact sound level depends on the model and fan speed, and manufacturers publish decibel ratings. We’ll share the specifications for the Rheem or Durastar model we recommend.

Yes. We service ductless systems, including units that aren’t heating or cooling well, that are leaking water, that show error codes, or that need cleaning. Call 312-500-4822 to schedule a visit in Bolingbrook, Joliet or a nearby suburb.

Schedule Ductless Service in Bolingbrook, IL

Call (312) 500-4822 or request an estimate.

Windy City HVAC Repair provides dependable ductless mini-split installation, repair, and maintenance throughout Bolingbrook and surrounding communities. Call today or request an estimate online to get started.