Mini Split Installation in Dallas, TX
A new system here will heat from November through March and cool from May through October every year. Tell us about the house, and a licensed contractor who covers Dallas County will get in touch.
Tell us about the job
It takes about a minute.
Eleven months of work, most winters mild
Your mini-split will run almost year round here. Cooling season stretches May through October, six months of summer afternoons averaging 94°F, and heat is needed November through March when nights average 38°F. That's 11 months of the year with the system doing something.
A mini-split that size and speed of cycling needs to be built for it. Any unit installed new has to meet 14.3 SEER2 for cooling and 7.5 HSPF2 for heating, the federal minimum for split-system heat pumps since January 2023. With most Dallas County homes heating on electricity, a heat pump that holds its output on a cold night matters more here than in places where the furnace does that work instead.
- 5 months
- November through March, your system heats
- 6 months
- May through October, it cools
- 38°F
- the average winter night it heats against
- 94°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
Texas requires HVAC contractors to hold a state license.
The license is issued to the contractor as a business, not to any single job, so it covers the company doing the work rather than this particular installation. Texas tested that contractor and holds the record through the Texas Department of Licensing and Regulation.
For this install, the license covers who is allowed to do the work. The job itself still goes through the local building office. In most Dallas County cities, putting in a mini-split needs a permit and an inspection once the work is finished, and that inspection is what confirms the unit was installed to code, separate from what the state license covers.
Source: Texas Department of Licensing and Regulation
- Is a mini split worth it?
- For the right room or addition, yes. A mini split heats and cools without ductwork, so it works well for a converted garage, a new room, or a house that relies on window units. Dallas homes need heat or cooling 11 months of the year, with summer afternoons averaging 94°F and winter lows near 38°F, so the unit gets used most of the year. Whether it makes sense for your house depends on what you're heating and cooling now, and a contractor can walk through that with you.
- How many rooms can a mini split cover?
- A single outdoor unit can run one indoor head or several. Each indoor head heats and cools only the room it's mounted in, so the number of rooms a system covers comes down to how many heads are on it. The right number depends on the size of the rooms and how the house is laid out, which is something a contractor sizes when they look at the space.
- Can a mini split heat a whole house?
- It can, if there's an indoor head in enough rooms to cover the house. A mini split is a heat pump, so it pulls heat from outside air even on cold nights, the same technology ducted heat pumps use. Winter lows in Dallas average 38°F, well within the range a heat pump handles without backup heat. Whether a whole-house setup makes sense depends on the number of rooms and how the house is divided, and a contractor can size the system for it.