Both systems can cool a Houston home, but they distribute air differently. Central air generally uses ducts to reach multiple rooms from one indoor air handler. A ductless mini-split connects an outdoor unit to one or more indoor units that condition specific spaces without conventional distribution ducts. Many mini-splits also provide heat.
When Ductless Fits
A mini-split may be practical for an addition, garage conversion, upstairs room, or space where extending ducts would be difficult. Individual room control is a draw. It is also useful when you want to address one persistently hot space without replacing an otherwise functional central system. But it needs a suitable indoor-unit location, a path for refrigerant lines and condensate, and professional sizing and installation.
When Central Air Fits
An existing duct system in good condition can make central cooling a natural whole-home solution. Supply and return paths, attic duct insulation, leakage, and equipment sizing matter. A new central unit will not fix a disconnected duct or a room with inadequate return airflow by itself.
Compare the Whole Setup
Do not compare only the outdoor equipment price. Ask about electrical work, number and placement of indoor units, condensate routing, duct repairs, maintenance access, and how the proposal will control humidity. A ductless unit's filters and indoor coil still need cleaning. Multiple room units may change the total cost and visual impact substantially.
For a single hot room, see our mini-split use-case article. If the entire house is uneven, our room-temperature guide helps frame the diagnosis. Explore ductless services or contact NexAir Solutions for an assessment.
Further reading: U.S. Department of Energy mini-split overview.