How much does it cost to cool a tiny home with mini splits.
Cooling a tiny home with a ductless mini split heat pump is a direct, efficient choice. ATX Mini Split King offers flat prices from $1,500 for one zone to $3,500 for three zones, covering materials, labor, and a Home Depot paint run if needed. No custom quotes or in-home visits required for standard installs.
Flat pricing, same everywhere we work
| System | Flat price, installed | Included |
|---|---|---|
| One split (single room) | $1,500 | Indoor head, outdoor condenser, line set, standard electrical, all labor |
| Two splits | $2,500 | Everything above, two zones |
| Three splits | $3,500 | Everything above, three zones |
Every install is wired to code by our TDLR-licensed contractor. Long line-set runs, panel upgrades or unusual mounting can add cost, and we tell you up front, before any work starts. For market context, see our Austin mini split cost guide: typical Central Texas quotes run $3,000 to $5,000 for a single zone.
General sizing guide
| Space size | Typical BTU needed | Notes |
|---|---|---|
| Up to 250 sq ft | 9,000 | Small bedroom, office, closet-sized room |
| 250-350 sq ft | 12,000 | Standard bedroom or small living area |
| 350-550 sq ft | 18,000 | Larger living area, garage, bonus room |
| 550-700 sq ft | 24,000 | Open living area, larger garage or shop |
General sizing guidance. Actual BTU needs vary with insulation, ceiling height, sun exposure and windows, which is why we confirm sizing against your specific space before quoting.
Why flat pricing works for tiny homes.
A tiny home typically needs only one or two cooling zones, making it an ideal fit for flat-rate ductless installation. With a single zone at $1,500 or two zones at $2,500, you avoid the per-zone custom quotes that often run $2,000 to $5,000 elsewhere. The price includes standard electrical hookup, line set up to a reasonable length, and a wall mount. If your tiny home is on wheels or has unusual siding, the crew will flag any exceptions before work starts.
The flat price also covers a Home Depot run for touch-up paint, so you do not have leftover marks on walls. Mini splits are heat pumps, meaning they cool through brutal Central Texas summers and heat through mild winters without a separate furnace. For a tiny home under 400 square feet, one 9,000 BTU zone often suffices, keeping the total cost at $1,500. For a slightly larger tiny home, a two-zone system at $2,500 provides separate temperature control for a sleeping loft and a living area.
What drives cost up or down for a tiny home.
The biggest cost driver is the number of zones. A single zone is $1,500, while three zones jump to $3,500. Most tiny homes need one or two zones, so the cost stays low. The second factor is line set length. If the outdoor unit must be placed far from the indoor head, a very long line set is an honest exception stated before work starts. Panel upgrades are another exception: if your tiny home already needs an electrical panel upgrade, that is not included in the flat price. Unusually difficult mounting, such as mounting on a metal roof or a very thin wall, may also be flagged beforehand.
Because tiny homes are compact, the install often finishes in a single day, and the crew tests the system before leaving. All installations are performed by TDLR-licensed contractors, so you know the work meets state standards. The flat price eliminates surprises: no per-foot charges, no trip fees, no hourly labor. For a tiny home that is already wired for a standard 120V or 240V outlet, the electrical hookup included in the flat price covers connecting the disconnect and running power to the outdoor unit. If your tiny home is off-grid, you will need to discuss solar or battery integration separately, as that is not a service offered.
Questions
Will a single 9,000 BTU mini split cool a 300 square foot tiny home in Austin summer?
Yes, a properly sized 9,000 BTU unit handles up to about 400 square feet in Central Texas, provided the home has adequate insulation and the unit is placed in a central location. The flat price for one zone is $1,500.
Does the flat price include running a line set through a wall or roof of a tiny home?
It includes a standard wall penetration and line set up to a reasonable length. If the outdoor unit must be mounted on a roof or a very thick wall, an exception may be noted before work starts. No hidden fees otherwise.
Can I choose a different brand or higher BTU size for the same flat price?
The flat price applies to the standard equipment and sizes we stock for typical 1-3 zone installations. If you need a different brand or a much larger capacity, the price may differ. Contact us for a specific quote in that case.
We install across Central Texas. See the Austin mini split cost guide, full Central Texas service area or Austin mini split installation.
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