Cool the Rooms That Need It Most

Ductless mini split installation and servicing for homes in Eustis, Florida.


If you have a room in your Eustis home that stays too warm no matter what you set the thermostat to, a ductless mini split gives you direct control over that space without tearing into walls or running new ductwork. These systems mount on the wall or ceiling and connect to an outdoor unit through a small conduit, making them ideal for converted garages, home additions, sunrooms, or any area that was not part of the original floor plan. Homeowners in Eustis often turn to ductless systems when they finish a space above the garage or enclose a porch and need cooling that does not strain the existing central system.

St. Louis Air Conditioning installs ductless mini split systems that let you create separate temperature zones throughout your home. Each indoor unit operates independently, so you can cool a bedroom to sixty-eight degrees while keeping a workshop at seventy-five. The systems run quietly and use less energy than extending ductwork or running window units, which helps lower monthly utility costs. Installation involves mounting the indoor head unit, running refrigerant lines and electrical through a three-inch opening in the wall, and placing the outdoor compressor on a pad or bracket outside.

Contact us to see if a ductless mini split is right for your space in Eustis.

What happens during a ductless installation

When you schedule a ductless installation in Eustis, the crew evaluates the space to determine the correct tonnage and placement for the indoor unit, since mounting height and wall location affect airflow and efficiency. They drill a single penetration through the exterior wall, run the refrigerant lines and power cable to the outdoor condenser, and secure the indoor unit on a mounting bracket. The system is then tested for leaks, charged with refrigerant, and programmed to your preferred settings.

After installation, you will notice immediate cooling in the targeted room and the ability to adjust temperature without affecting the rest of the house. The indoor unit responds quickly to changes on the remote control, and you will hear far less noise than a traditional window unit or portable air conditioner. Most units also include a dehumidification mode that pulls moisture from the air without overcooling the space.

St. Louis Air Conditioning uses equipment suited to Florida humidity and ensures proper drainage from the indoor unit so condensation does not collect inside walls. The outdoor compressor is placed where it has adequate airflow and does not block walkways or landscaping. Regular servicing includes cleaning the filters, checking refrigerant levels, and inspecting the drain line to keep the system running as intended.

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Questions homeowners ask before adding a ductless system

Homeowners in Eustis typically want to know how ductless systems compare to central air, what size unit fits their room, and how installation affects the appearance of their walls.

What rooms work best for ductless mini splits?
Ductless systems work well in home additions, finished garages, sunrooms, and any space that does not connect to your existing ductwork. They are also effective in older homes where running new ducts would be difficult or expensive.
How much electricity does a ductless unit use compared to central air?
Because ductless systems cool only the rooms you choose, they typically use less electricity than running a central system to condition the entire house. You can turn off units in rooms you are not using and avoid the energy loss that occurs in leaky ductwork.
How loud is the indoor unit when it runs?
Most ductless indoor units operate at around twenty to thirty decibels, quieter than a standard ceiling fan. You will hear a soft hum when the compressor cycles on, but it does not interfere with conversation or sleep.
What maintenance does a ductless system need?
You should clean or replace the filters in the indoor unit every few weeks and schedule annual servicing to check refrigerant levels, clean the coils, and clear the condensate drain. St. Louis Air Conditioning handles the technical inspections during routine service calls.
How long does installation take for one indoor unit?
Most single-zone installations are completed in three to five hours, including mounting the indoor head, running the lines, placing the outdoor unit, and testing the system. Multi-zone setups take longer depending on the number of indoor units.

St. Louis Air Conditioning sizes ductless systems based on room dimensions, ceiling height, and insulation quality so you get consistent cooling without cycling on and off constantly. Learn more about zoned cooling options for your Eustis home.