A gray tabby cat sleeps curled up on a dark gray bed in a dimly lit modern bedroom with warm ceiling cove lighting and a wall-mounted air conditioning unit.

Mini Split Installation in Stonecrest, GA

A new system here will heat from November through April and cool from May through September every year. Tell us about the house, and a licensed contractor who covers DeKalb County will get in touch.

Tell us about the job

It takes about a minute.

Step 1 of 3: Equipment

What kind of equipment?*

A dark modern bedroom with grey bedding, a wall-mounted air conditioning unit, and a cat resting on the bed.

Eleven months of work for a Stonecrest mini-split

Stonecrest homes need heat or cooling 11 months of the year. Winter nights average 35°F from December through February. Summer afternoons run near 88°F. A mini-split installed here spends most of the year working, not sitting idle.

Any new mini-split has to meet the federal minimum for a split-system heat pump. That means 14.3 SEER2 for cooling and 7.5 HSPF2 for heating. That is the floor, not a feature, so it is worth asking what a contractor is installing above it. Power matters too. Across Georgia, 31% of households went at least 24 hours without power in 2024. A mini-split paired with backup power keeps a home heated or cooled when the grid does not.

6 months: November through April, your system heats
5 months: May through September, it cools
35°F: the average winter night it heats against
88°F: the average summer afternoon it cools against

Isometric line illustration of a cutaway house with a shingled gable roof, showing two wall-mounted indoor air conditioning units connected by piping to an outdoor condenser unit on the ground outside.

Your system heats November through April and cools May through September.

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May

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Dec

NOAA nClimDiv, 1991–2020 normals

Georgia requires HVAC contractors to hold a state license.

The license comes from the State Construction Industry Licensing Board, and it belongs to the contractor, not to this one installation. It covers the person or company across every job they take on, not just this one.

For the mini-split itself, most cities and counties also require a permit before the work starts and an inspection once it's done. That check happens alongside the state license, not in place of it.

Source: Georgia Secretary of State

Is a mini split worth it?: For most homes here, yes. Stonecrest needs heat or cooling eleven months out of the year, so a system that handles both jobs earns its keep. A mini split heats through cold winter nights and cools through the 88°F afternoons of summer without any ductwork to install or lose air through. It works especially well for a room addition, a garage, or any space the main system does not reach well.
How many rooms can a mini split cover?: A single outdoor unit can run more than one indoor head, so a mini split can cover several rooms at once. Each indoor head heats and cools the room it is mounted in, and you set each one on its own thermostat. A contractor will size the system to the house, since the right number of zones depends on the layout and how many rooms need their own control.
Can a mini split heat a whole house?: It can, if enough indoor heads are placed to reach every room and the outdoor unit is sized for the whole load. Winter lows here average 35°F, well within what a modern heat pump handles. Open floor plans and smaller homes are easier to cover this way than houses with many closed-off rooms. A contractor can look at the floor plan and tell you how many zones the house needs.

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