Ductless Mini-Splits in South Fulton
Bonus rooms, additions and converted garages often sit past the reach of the central system. We size, install and repair ductless mini-splits for those rooms, and fix heads that quit cooling, across South Fulton and nearby towns.
Head not cooling?
Until it is fixed: Keep the outdoor unit's panel shut. The capacitor inside holds a charge even with the power off.
Do mini splits work in 100 degree weather?
Yes. As long as the head is sized to the room it is serving and the installation is correct. The record temperature in Atlanta was 106F on June 30, 2012. South Fulton has long and humid summers. Mini splits can struggle if the room hasn't been measured. This can be a sunroom with west facing glass, bonus room above the garage with a hot roof or converted garage with thin walls. In newer developments like Campbellton nearly every home was built after 2000. Two-story homes often have a second system upstairs. One room still stays warm. By sizing the head to the heat load in the room it will keep up with the hottest afternoons.
What a mini-split visit includes
A head that stopped cooling is why you called. We also check the outdoor unit, line set, drain and wiring at the units.
Single-zone wall head and louvers
Room load first
Each room is sized on its own windows, insulation and South Fulton afternoon sun, not a guess.
Head and filter cleaning
Filters, louvers and the blower wheel inside the head get cleaned so air moves freely across the coil.
Refrigerant and line set
The line set is checked for leaks and charge. Existing R-410A systems can still be serviced, so repair stays possible.
Outdoor unit and bracket
A level mount, a solid bracket or pad, clean coil fins and room for air around the outdoor unit.
Supply air temperature
Air leaving the head should run clearly colder than the room through a full cooling cycle.
Drain and wiring check
The condensate line drains outside instead of down the wall, and the disconnect and wiring at the unit are tight.
Single-zone or multi-zone: which one do you have?
Count the indoor heads, then the outdoor units. One head per outdoor unit is single-zone. Several heads sharing one is multi-zone, and one outdoor fault can take out every room.
| System detail | Single-zone mini-split | Multi-zone mini-split |
|---|---|---|
| What it is | One outdoor unit paired with one indoor wall head. | One outdoor unit feeding two or more indoor heads. |
| Where it sits | Head high on one wall, outdoor unit just outside it. | Heads in several rooms, each line set running to one outdoor unit. |
| Usually found in | South Fulton bonus rooms, sunrooms, converted garages, single additions. | Larger additions or a whole floor of rooms. |
| What failure looks like | One room warm, a blinking light, or water dripping below. | Several heads warm at once, or one zone gone quiet. |
| What the repair needs | Usually a filter, drain, sensor or outdoor capacitor on one system. | Tracing whether one head or the shared outdoor unit is at fault. |
What are the disadvantages of a mini split system?
- A head on the wall you see every day, not hidden in a vent.
- Each extra room adds a zone, and zones drive the price most.
- Every head has its own filter to wash, not one central filter.
- A line set cover runs down the outside wall to the unit.
- One head cools one room, not the whole house.
If two or more bother you, ask whether extending your ducts could reach the room instead.
Water stain under a wall head
Mini-split questions we hear in South Fulton
These come up on most mini-split calls in South Fulton. If yours is missing, call or send the form.
Single-zone
Where should a mini split not be installed?
Not over a bed, a TV or anything that hates a drip, not in hard afternoon sun, and not where curtains or tall furniture block the airflow. The head also needs a short, downhill route outside for the line set and drain.
Can you install a mini split yourself?
Kits exist, but we'd steer you away. The refrigerant side and the high-voltage wiring are technician work, federal rules limit who may handle refrigerant, and capacitors in the outdoor unit hold a charge after shutoff.
Multi-zone
Is it better to oversize or undersize a mini split?
Neither. Each zone should be sized to the room. An oversized head will cool quickly and turn off leaving damp air. An undersized head will run constantly and lag by the end of the afternoon. We will measure the room, windows and sunlight.
What is the lifespan of a mini split?
It depends on use and upkeep. A mini-split is a heat pump, and ENERGY STAR suggests weighing replacement once a heat pump passes 10 years. Washed filters and a clear drain help it get there in good shape.
Day to day
Should I leave my mini split on all the time in summer?
In a South Fulton summer, for a room you use every day, often yes, at one steady setting. Letting the room bake all afternoon means the head has to pull out the heat and the humidity again. In a guest room or a garage you rarely use, turn it off.
Why is my electric bill so high with a mini split?
Check for a dirty filter, a dusty coil, a head sized wrong for the room, or a setting fighting the central system next door. Low refrigerant means a leak a technician has to find. Call 7am to 7pm, any day.
Room still warm? Wash the filter, then call.
Tell us which room, how many heads you have, whether the house heats with gas or a heat pump, and the unit's age if you know it.
(470) 912-2502Open every day, 7am to 7pm