What ductless mini-splits cost on the North Shore.
Ductless mini-split installation on Chicago's North Shore typically runs $4,000-$14,000 installed. Zone count is the dominant variable by a wide margin: a single-head system serving one room or an addition sits near the bottom, while a three or four zone multi-split covering a whole floor of a house with no ductwork reaches the top. ComEd pays roughly $1,000 on qualifying ductless equipment.
Published 2026-08-31 · Last reviewed 2026-08-31 · Typical installed project totals for the Chicago North Shore, not quotes.
Cost by home size
Square footage drives capacity and capacity drives price. These are the same size adjustments the instant estimate calculator uses, so the two never disagree.
| Home size | Typical installed |
|---|---|
| Smaller homes (under 1,500 sq ft) | $3,400-$12,300 |
| Typical homes (1,500-2,500 sq ft) | $4,000-$14,000 |
| Larger homes (2,500-4,000+ sq ft) | $4,500-$18,500 |
What the range covers
- Outdoor condenser, indoor heads, line sets, and the wall penetrations made and sealed
- Condensate drainage, including a lift pump where the head cannot gravity drain
- Dedicated electrical circuit to the outdoor unit and the interconnecting control wiring
- Mounting, commissioning and charge verification, plus removal of window units being replaced
- Warranty registration and the ComEd rebate submission
- Electrical panel upgrades where there is no room for the new circuit
- Carpentry, drywall or plaster repair beyond sealing the penetrations
- Concealing line sets inside finished walls, which is possible during a renovation and quoted separately
- Removal of an existing heating system, which stays in place on nearly all of these projects
What actually moves the number
- Zone count, and it is not linear
- The first zone carries the outdoor unit, the electrical circuit and the bulk of the setup. Each additional head is cheaper than the first but adds its own line set run, its own condensate path and its own labor. Two houses can be quoted the same total for very different reasons, and the useful question is always the price per zone rather than the headline.
- Houses with no ductwork at all
- This is the category that makes mini-splits the answer rather than the fallback, and there is a lot of it on the North Shore and through the Lake County villages. Mid-century homes built with radiant heat in the floor or ceiling have no ducts anywhere, so adding central air would mean building a duct system from nothing. A ductless system gives those houses cooling without opening the structure, and it adds efficient shoulder-season heat on top of the radiant.
- Where the line set can run
- Each head needs refrigerant lines, a drain and control wire back to the outdoor unit. Running them down an exterior wall in a line-hide is fast and inexpensive; concealing them inside a finished plaster wall means opening and repairing that wall. On a house where appearance matters, this decision moves the price more than the equipment does, and it is the right thing to look at during a renovation rather than after.
- Head type
- High-wall heads are the least expensive and the most visible. Ceiling cassettes, floor-mounted units and short-run ducted heads that feed two rooms through a soffit all cost more and are far less obtrusive. A ducted head hidden in a closet serving two bedrooms is often the better answer in a house where a high-wall unit in a formal room would not be acceptable.
- Condensate and cold-climate details
- A head that cannot drain by gravity needs a small lift pump. Outdoors, a cold-climate installation wants the condenser on a stand or wall bracket above snow line with room for the defrost cycle to drain away. These are small items individually and they are where cheap installations get sloppy in a way that shows up in the second winter.
When ductless is the right tool and when it is not
Ductless wins clearly in a house with no ductwork, in an addition or converted attic that the existing system was never sized for, in a sunroom or a room over a garage that has always been the uncomfortable one, and anywhere a window unit is currently doing the job badly. It is the wrong tool when the house already has sound ductwork and a furnace, because in that case a conventional condenser or a ducted heat pump does the same work for less money and without visible indoor equipment. It is also a poor fit where the homeowner will not accept the indoor units and the budget does not stretch to concealed ducted heads, which is a conversation worth having before the estimate rather than after the install.
Mini split installation cost, and why it is quoted per head
Mini split installation cost is a more accurate way to ask this than mini split cost, because with ductless the installation is most of what you are buying. The equipment is a condenser outside and one or more heads inside, and the price moves with how many heads there are and how hard each one is to reach rather than with a single box. That is why a one-room quote and a whole-house quote for the same brand look nothing alike. The North Shore installation variables are specific: line-set routing through masonry or balloon-framed walls, where the condenser can practically sit on a narrow lot, and whether the condensate drains by gravity or needs a pump. A house needing four heads on three exterior walls is a materially bigger installation than one needing two heads on a single wall.
ComEd offers roughly $1,000 on qualifying ductless mini-split equipment, set by the model at quote time. Where a ductless system is being installed as the primary heating source rather than as supplemental cooling, it is worth asking whether the equipment qualifies under the heat pump tiers instead, which pay more. The federal 25C credit ended for equipment placed in service after December 31, 2025.
Current ComEd and Nicor rebatesMethodology
This range is the typical installed project total for ductless mini-split installation across Chicago's North Shore - Evanston, Wilmette, Winnetka, Kenilworth, Glencoe, Highland Park, Lake Forest, Northbrook, Glenview and the surrounding communities. It reads from the same figures as the instant estimate calculator and the main cost reference, so there is one set of numbers on this site rather than three. Ranges are reviewed as equipment and utility program pricing move, and the last-reviewed date above is accurate rather than automatic.
Ductless Mini-Split Installation cost questions
$4,000-$14,000 installed on Chicago's North Shore. A single-zone system for one room sits near the bottom of that range and a multi-zone system covering a floor of a house with no ductwork sits near the top.
Less than the first one did. The outdoor unit, the electrical circuit and the setup are largely paid for by zone one, so subsequent heads cost mainly their own line set run, drainage and labor. Ask any bidder to break the quote out by zone, because that is where an apples-to-apples comparison lives.
Yes, and on the North Shore that is often the better half of the value. A cold-climate ductless system heats efficiently through the long shoulder seasons, which in a radiant-heat house means the boiler runs far less from October to December and again in March. In deep cold the existing heating system still carries the house.
It is the practical one. The alternative is building a duct system into a finished house, which is invasive and expensive enough that it generally only makes sense during a gut renovation. High-velocity small-duct systems are the other route and they are not cheaper. For a mid-century radiant house wanting cooling, ductless is the answer rather than the compromise.
They run in a covered channel, usually a few inches wide, painted or in a color close to the siding. On the back or a side elevation most people stop noticing them. On a front elevation it is worth paying to route them differently or to conceal them, and that is a decision to make at the estimate.
$4,000-$14,000 installed on Chicago's North Shore, and the spread inside that range is mostly head count and access rather than equipment tier. A single head in an easily reached room is at the bottom. A multi-zone system with heads on several exterior walls, long line-set runs through old masonry and a condensate pump is at the top. Compare quotes per head rather than as one total.
“Ductless Mini-Split Cost on the North Shore (2026): $4,000-$14,000 Installed,” North Shore HVAC Replacement, last reviewed 2026-08-31. https://northshorehvacreplacement.com/costs/ductless-mini-split/
Other system costs
The instant estimate calculator gives you a range for your house in about a minute, and it shows the number before it asks for your contact information. $4,000-$14,000 is the planning range; your house has one number inside it.