Mini Split Installation in Round Rock, TX 78665
Updated October 2026
Mini Split Reef installs ductless mini splits in 78665 and across Williamson County at a posted price. Every mini split is $2,000 installed, however many you need. No in-home sales visit to get a number.
Newer houses, the rooms builders skip
About 49% of homes in 78665 were built in 2010 or later. Newer builds usually come with one central system sized for the main floor, so bonus rooms, garages, offices and upstairs bedrooms run hot.
A mini split handles that one room on its own thermostat, without reworking the builder's system.
Heat and cool from the same unit
About 55% of homes in 78665 heat with gas. A mini split doesn't replace that furnace; it adds year-round comfort to the rooms the furnace and AC don't reach, with heating built in for cold snaps.
Every unit we install is a heat pump, so the room you add it to stays comfortable in January too.
Owner-occupied streets
About 64% of occupied homes in 78665 are owner-occupied. Owners tend to fix the problem room for good instead of pushing a window unit into it every May. A mini split is quiet, permanent and works on its own thermostat.
What it costs here
The median home value in 78665 is about $438,700. The install price doesn't move with it: Every mini split is $2,000 installed, however many you need. Equipment, labor, line set, standard electrical and a touch-up paint run are included. Financing is available on approved credit for two-unit jobs and up: see the full terms.
Housing in 78665 at a glance
- About 24,678 homes
- Typical home built: 2010
- Built before 1980: 2%
- Built 2010 or later: 49%
- Heated with electricity: 45%
- Owner-occupied: 64%
Housing figures: U.S. Census Bureau, American Community Survey 2019-2023 5-year estimates, ZIP Code Tabulation Area 78665. Figures are estimates for the whole ZIP, not any one street.
Where 78665 sits
Straight answers for Round Rock
How much does a mini split cost in 78665?
Every mini split is $2,000 installed, however many you need. That is the posted price, not a starting estimate.
Do you charge extra to come to Round Rock?
No. The same posted price applies across our service area, with no trip fee.
Will it heat in winter?
Yes. Every mini split we install is a heat pump, so it heats and cools from the same unit.
How fast can you install?
Usually the same week, and most one to three zone jobs finish in a single day.
Do I need ductwork?
No. A ductless mini split needs only a small opening through the wall for the line set.
Come up for air
No walkthrough, no sales pitch. Tell us the rooms and we tell you the price.
Get My Flat Price