
Ductless Mini-Split Installation
New construction, additions, or a straight swap for an old window unit: we handle sizing, placement, and setup so your ductless mini split installation performs the way it should from day one.

Room-by-room heating and cooling without the ductwork. Top Comfort Heating & Air Conditioning installs and services ductless mini split systems for homes across Oak Lawn and the surrounding suburbs.
Ductless mini split systems give you zone-by-zone temperature control without tearing into walls or ceilings for ductwork. That makes them a smart fit for additions, converted attics, three-season porches, and older homes throughout Oak Lawn, Chicago Ridge, and Burbank where extending existing ductwork just isn't practical.
A single outdoor condenser can power multiple indoor air handlers, each with its own thermostat. That means the bedroom wing can run cooler at night while the living room stays comfortable during the day, all without wasting energy heating or cooling rooms nobody's using.
Top Comfort works with trusted brands including Mitsubishi ductless systems, known throughout the industry for quiet operation and efficient year-round performance. From the first consultation through final startup, we size the system to your space and walk you through how it works before we leave your driveway.

Every ductless project starts with an honest look at your home's layout, your comfort goals, and your budget. From there, our two core services cover the full life of the system: getting it installed correctly, and keeping it running when something goes wrong.
Whether you're adding comfort to a sunroom, converting a garage, or replacing an aging window unit, our team has the training and parts on hand to get it done right the first time.

New construction, additions, or a straight swap for an old window unit: we handle sizing, placement, and setup so your ductless mini split installation performs the way it should from day one.

Short cycling, weak airflow, or a unit that won't power on at all: our techs diagnose the issue fast and carry the parts to complete most ductless mini split repair visits in a single trip.
Ductless systems are a different kind of install compared to a traditional furnace and central air installation, and they reward a contractor who's done it many times before. Our technicians train specifically on ductless HVAC systems, including Mitsubishi ductless systems, so line sets, refrigerant charges, and control wiring get handled correctly the first time.
Homeowners across Oak Lawn, Orland Park, Tinley Park, and the rest of our service area count on us for:

Here are answers to questions we hear often from homeowners in Oak Lawn, Chicago, and the surrounding suburbs considering ductless comfort for their home.
Central air installation relies on a network of ducts to move conditioned air through your home, while a ductless mini split system uses a small refrigerant line running from an outdoor condenser to one or more wall-mounted indoor units. This makes ductless a strong option for additions, garages, or older homes without existing ductwork, and it typically installs faster with less disruption to your walls and ceilings.
Yes. Modern Mitsubishi ductless systems and other cold-climate models are engineered to deliver reliable heat well below freezing, which makes them a practical option for supplemental or full-home heating in our region. We'll walk you through the specific performance ratings for the unit we recommend so you know exactly what to expect once temperatures drop.
If you notice ice forming on the indoor or outdoor unit, unusual noises, water leaking near the wall unit, or the system running constantly without reaching the set temperature, it's time to call for ductless mini split repair rather than wait for a routine tune-up. Left alone, these issues tend to get more expensive to fix and can shorten the life of the equipment.
Yes. Ductless indoor units have filters and coils that collect dust just like any other air conditioner installation or heating system, and skipping seasonal HVAC maintenance can quietly reduce efficiency and airflow. We recommend a professional check-up at least once a year to keep the system running at its rated efficiency and to catch small problems early.


Stop fighting over the thermostat or living with a room that's always too hot or too cold. Tell us about your space and we'll recommend the right ductless setup, whether that's one indoor unit or a full multi-zone system for your home.