Ductless Mini-Split Installation in Bloomington & Peoria, IL
Some rooms never seem to get comfortable no matter how you set the thermostat. Ductless mini-splits solve that problem by heating and cooling each space directly, without ductwork. Custom Air Company provides ductless mini-split installation in Bloomington, Peoria, and across Central Illinois, and we install Mitsubishi systems known for quiet, efficient performance. Request an estimate or call (309) 485-5848.
HVAC Repair & Installation Specials
Check our current specials for savings on ductless systems and other comfort upgrades.
Explore Ductless Mini-Splits for Peoria and Bloomington Homes
Ductless systems have become one of the most flexible ways to add comfort to a home, whether you are finishing a basement in Peoria or updating a century-old house in Bloomington.
How Ductless Mini-Splits Work
A mini-split system has two main parts: an
outdoor condenser and indoor air handlers
, connected by a small refrigerant line that runs through a hole in the wall about three inches across. Each indoor unit heats or cools its own zone, so every room can be set to a different temperature. Most models use
inverter compressors for efficient heating and cooling
, which speed up and slow down to match demand instead of switching fully on and off.
Where Ductless Makes the Most Sense
Ductless systems shine in
home additions, garages, and sunrooms
, where extending existing ductwork would be costly or impractical. They are also a natural fit for
older homes without ductwork
, including many historic houses in Bloomington and Peoria that were built around radiators. And they are often the simplest fix for
rooms that are always too hot or too cold
, such as upstairs bedrooms and finished basements.
Single-Zone vs. Multi-Zone Systems
A single-zone system pairs one indoor unit with one outdoor unit and works well for a single room or open area. A multi-zone system connects several indoor units to one outdoor condenser, so you can control comfort room by room throughout the home.
Ductless Mini-Split Installation in Bloomington, IL
A ductless system is only as good as its layout, so we plan every installation carefully before any equipment arrives. You can explore the equipment we install on our Mitsubishi systems page.
In-Home Assessment and Zoning Plan
We walk through your home, looking at each room’s size, sun exposure, and how you use it. From there we design a zoning plan that puts comfort where you need it most.
Clean, Professional Installation
Our installers plan
line set routing and wall penetrations
so the finished system looks neat and stays weathertight. Just as important is
indoor head placement for even comfort
, which spreads air across the whole room without blowing directly on your bed or sofa.
Rebates and Energy Savings
Because mini-splits deliver air directly into each room, they avoid the energy lost through leaky ductwork, and inverter technology helps keep operating costs low. Ask us about current rebates, and review flexible terms on our financing page.
Punctual and Professional Ductless AC Repairs
When a mini-split stops working, we bring the same care to the repair that we bring to every installation, and we service all major brands.
Common Mini-Split Problems We Fix
Many repair calls begin with
error codes and communication faults
between the indoor and outdoor units, which our technicians can trace and correct. We also fix
water leaks from indoor units
, which are usually caused by a clogged condensate line. Another common complaint is
weak airflow and dirty filters
, and regular cleaning prevents most of those problems.
Mini-Split Care Plan
Our Mini-Split Care Plan includes spring and fall visits with a 15-point inspection and discounts on parts. See plan details on our HVAC maintenance page.
FAQs About Ductless Mini-Splits
How much does ductless mini-split installation cost?
It depends on the number of zones, the equipment, and the installation details. We provide a written estimate after an in-home assessment.
Can a mini-split heat my home through an Illinois winter?
Many cold-climate mini-split models are designed to heat effectively well below freezing. We will recommend equipment suited to Central Illinois winters.
How many zones does my home need?
That depends on your layout and how you use each space. Our zoning plan matches indoor units to the rooms that need them most.
Schedule Your Ductless Mini-Split Estimate
Bring comfortable, efficient heating and cooling to every room. Request an estimate or call (309) 485-5848 to schedule a visit in Bloomington, Peoria, or nearby communities.