Ductless mini-splits are small heat pump systems: an outdoor unit connected by a refrigerant line set to one or more indoor heads mounted on a wall, ceiling or floor. They cool and heat without ductwork. In Central Texas they're a common answer for garages, workshops, additions, converted attics and rooms the central system never keeps comfortable. Requests sent through this site go to an independent contractor licensed by the Texas Department of Licensing and Regulation (TDLR), who designs and installs the system.
Where mini-splits make sense
- Additions and converted spaces where extending ductwork from the main system isn't practical or would overload it.
- Garages, shops and detached buildings that need their own conditioning.
- Hot or cold rooms, such as a bonus room over a garage or a west-facing room that bakes in the afternoon.
- Homes without ducts, including some older homes and cabins.
- Zoning, where you only want to condition rooms that are in use.
Where central air is usually better
For a whole house that already has good ductwork, a central system is usually simpler and gives you whole-house filtration from a single filter. Large open floor plans can also be harder to condition evenly with wall heads. A contractor should talk through both options rather than defaulting to one.
What a good installation includes
- Sizing per room, based on a load calculation, not a guess. An oversized head in a small room short-cycles and does a poor job of removing humidity, which matters a lot in Texas.
- Head placement that throws air across the room without blowing directly on beds or seating.
- A clean, sealed line set run through a small wall penetration, with a proper vacuum and leak check.
- Condensate drainage that drains by gravity or through a pump, without dripping down siding or into the wall.
- A dedicated electrical circuit and disconnect as required by code, and local permits where your city requires them.
Maintenance is different
Mini-split heads have washable filters that need cleaning far more often than a central-air filter, often monthly during heavy use. The indoor coil and blower wheel can collect grime and should be professionally cleaned periodically. Small condensate lines are prone to clogging. Keep the outdoor unit clear of plants and debris.
Common mini-split problems
Blinking error codes, water dripping from the head, weak airflow (usually dirty filters or a dirty blower wheel), and musty odors are the most common complaints. Error codes vary by brand, so note the code and the model number when you request service.
How a request works
Tell us what space you want to condition and how it's used. We'll forward your request to an independent licensed contractor serving your town, who will visit, assess the space and give you a quote.
Ductless Mini-Splits FAQs
Are mini-splits good for Texas garages and shops?
They're a popular choice for garages, workshops and detached spaces because they cool and heat without ductwork. Insulation matters a lot. A hot, uninsulated garage needs more capacity.
Can a mini-split replace central air?
It can, but for a whole house with good ducts, central air is usually simpler and gives whole-home filtration. Mini-splits shine in specific rooms or homes without ducts.
How often do I clean the filters?
Mini-split filters are washable and often need cleaning monthly during heavy use. Indoor coils and blower wheels also need periodic professional cleaning.
Why is my mini-split dripping water?
Usually the condensate drain is clogged or the head isn't level. Turn it off and request service to prevent wall damage.
Does a mini-split need a permit?
Many cities require mechanical and electrical permits. The licensed contractor should know local requirements.