Mini Split vs Through the Wall Air Conditioner
Updated September 2026
A through-the-wall air conditioner is a self-contained chassis that sits in an opening in an exterior wall and cools one room. A mini split is a ductless system with a wall-mounted indoor head and a separate outdoor condenser. Mini splits are heat pumps. They cool through brutal Central Texas summers and handle mild winters without a furnace.
Mini Split Reef posts a flat rate of $2,000 per mini split installed, however many units. Equipment, labor, line set, standard electrical, refrigerant, testing, cleanup and a Home Depot run for touch up paint are included. No trip fees or surprise add ons. The same flat rate applies in Austin and the I-35 corridor, north to Waco and Killeen, south to San Antonio. Property managers, landlords and multi unit owners get a volume discount off the $2,000 per unit rate.
What you pay and how the price is set
Ductless installs in Central Texas commonly run $3,000-$6,000 per zone on a custom quote. Most contractors are quote based and require an in home sales visit. Mini Split Reef uses a posted $2,000 rate. Honest exceptions are stated up front, never after: a very long line set, a panel upgrade the house already needed, or unusually difficult mounting. A through-the-wall unit is bought at retail. Any carpentry or extra electrical is arranged by the owner separately.
Cooling, heating, and Central Texas weather
Mini splits cool and heat from the same equipment. Through-the-wall air conditioners are built first for cooling. When they include heat it is usually electric resistance. For a room that must stay comfortable in both the long summer and the milder winter, the mini split covers both without adding a furnace.
Installation, the wall opening, and rental properties
A through-the-wall unit needs a framed hole or sleeve. The chassis stays in that opening and is visible inside and outside. A mini split indoor unit mounts high on an interior wall. The outdoor unit sits on the ground or a bracket. Existing through-wall openings are not required. Cleanup is part of the $2,000. For several units in one property, property managers, landlords and multi unit owners receive a volume discount.
How we compare
| Factor | Mini Split Reef | The usual |
|---|---|---|
| Price | $2,000 per mini split installed. Equipment, labor, line set, standard electrical, refrigerant, testing, cleanup and a Home Depot run for touch up paint included. No trip fees or surprise add ons. | The through-the-wall unit is purchased at a retailer. Installation, framing, or extra electrical is arranged separately by the owner. |
| Heating and cooling | Heat pump. Cools Central Texas summers and handles mild winters without a furnace. | Designed mainly for cooling. Heat, when present, is usually electric resistance. |
| How it sits in the building | Indoor head mounts on the wall. Outdoor condenser is separate. No appliance chassis filling a through-wall hole. | The entire unit occupies a wall opening or sleeve and is visible from both sides. |
| Who sets the work and the rate | Posted flat rate with no in-home sales visit required to know the price. Same $2,000 rate from Waco and Killeen through Austin to San Antonio. Exceptions for very long line set, needed panel upgrade, or unusually difficult mounting stated up front. | Owners often buy and set the unit themselves or hire a handyman. Most local HVAC contractors work from custom quotes on other system types after an in-home visit. |
| Multi unit and landlord use | Volume discount off the $2,000 per unit rate for property managers, landlords and multi unit owners. | Each room can be replaced on its own without a building-wide HVAC project. |
Straight answers
Can a mini split take the place of a through-the-wall air conditioner?
Yes. The mini split does not use the old wall opening. It cools and also heats. Mini Split Reef installs at $2,000 per unit with cleanup included.
What is not in the $2,000 flat rate?
A very long line set, a panel upgrade the house already needed, or unusually difficult mounting. Those are stated up front, never after the work starts.
Do you serve only Austin?
Service area is Austin and the I-35 corridor, north to Waco and Killeen, south to San Antonio. The same flat rate applies corridor wide.
Is there a different price for several units in rentals?
Property managers, landlords and multi unit owners get a volume discount off the $2,000 per unit rate.
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