Ductless Systems

Ductless Mini Split Installation in Dallas, TX

A ductless mini split cools and heats a room without any ductwork. HVAC-R Finest provides mini split AC installation and repair for homes and businesses across Dallas, DeSoto and nearby cities.

Outdoor unit opened for service with its control panel exposed

Where a Mini Split Makes Sense

Garages and workshops

Cool and heat a space the main system was never designed to reach.

Additions and sunrooms

Condition a new room without extending, or overloading, the existing ductwork.

Bonus rooms and converted attics

Upstairs rooms that run hot in a Texas summer get their own system and thermostat.

The room that's never comfortable

A bedroom or office that's always too hot or too cold can be handled separately.

Homes without ductwork

Older homes can get efficient cooling and heating without opening up walls and ceilings.

Offices and server rooms

Small commercial spaces that need cooling all year, separate from the main system.

How Ductless AC Works

A mini split has two parts: an outdoor unit and an indoor unit mounted on a wall or ceiling. They're joined by refrigerant lines that pass through a small hole in the wall, about three inches across. There are no ducts, so no cooled air is lost on the way to the room.

Most mini splits are heat pumps. The same system cools in summer and heats in winter.

Single Zone or Multi Zone?

Single zone

One outdoor unit and one indoor unit. The right choice for one room, a garage or an addition.

Multi zone

One outdoor unit connected to several indoor units. Each room gets its own temperature setting.

How Installation Works

01

Assessment

We look at the room's size, insulation and sun exposure, and where the units and lines can go.

02

Sizing and quote

We recommend the right size and number of zones, and give you a free, no-obligation quote.

03

Installation

We mount the indoor unit, set the outdoor unit and connect the refrigerant lines, drain and power.

04

Start-up

We test the system in cooling and heating, and show you how to use the remote.

Mini Split Repair and Maintenance

We also repair and maintain ductless systems that are already installed.

  • Not cooling or not heating
  • Water dripping from the indoor unit
  • Blinking lights and error codes
  • Refrigerant leaks
  • Indoor coil and blower cleaning
  • Remote and control problems

Mini Split or Central Air?

If your home already has good ductwork, central air is usually the simplest way to cool the whole house. See AC installation and replacement.

A mini split is the better choice for spaces the ducts don't reach, and for rooms that need their own temperature.

Mini Split Installation Across Dallas and Nearby

We install ductless systems in Dallas, DeSoto and the surrounding areas. To heat and cool the whole home with one system, see heat pumps.

Frequently Asked Questions

How much does a mini split cost?

It depends on the number of rooms, the size of the system and how far the lines have to run. We provide a free, no-obligation quote.

Can a mini split heat as well as cool?

Yes. Most mini splits are heat pumps, so the same system cools in summer and heats in winter.

How many rooms can one system serve?

A single-zone system serves one room. A multi-zone system connects several indoor units to one outdoor unit, each with its own temperature setting.

How long does installation take?

A single-zone system is typically installed in a day. Multi-zone systems take longer.

Do mini splits need maintenance?

Yes. Clean the filters every few weeks, and have the system checked regularly, like any heating and cooling system.

Do you install ductless systems for businesses?

Yes. We work with split and VRF systems in commercial buildings. See commercial HVAC.

Do you offer financing options?

Yes, we offer flexible financing options to help you manage the cost of your HVAC services. See financing.

What areas do you serve?

We serve Dallas, DeSoto and the surrounding areas, including Cedar Hill, Duncanville, Lancaster and Glenn Heights.

Have a Room Your Ducts Don't Reach?

Get a free, no-obligation quote for a ductless system.