Installation & Replacement
Ductless mini split installation for Miami homes and condos
A mini split cools a room with no duct at all: an outdoor unit, a small line set and a quiet indoor head. It suits garages, additions, Florida rooms and condos where central air can't reach or duct would be invasive.
Miami service office on SW 117th Ave · We answer 24/7
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- Single and multi-zone
Updated October 2026
Ductless mini split installation in Miami typically runs $2,739 to $8,228 in published Florida guides for common installs, with multi-zone systems costing more per room added. Our SW 117th Ave office sizes each zone from a load calculation, cores the block wall for the line set, and anchors the outdoor unit to code.
The job
Where a mini split beats extending central air
Extending duct from an existing system to a new room often starves the rest of the house and never quite cools the new space. A mini split gives that room its own system and its own thermostat, and inverter compressors ramp down to hold the temperature quietly instead of cycling hard.
They're also the natural fit where duct is impossible: condos without attic space, rooms over a garage, and older homes where a duct run would mean tearing open ceilings.
What moves the price
What decides the price of a mini split
Planning range: Ductless mini split in Florida: $2,739-$8,228 in published 2026 guides. A market range, not our quote.
Number of zones
Each indoor head adds equipment and labor.
Capacity
Sized to each room's load, not its floor area.
Head style
Wall, ceiling cassette or ducted slim units.
Line set length
Longer runs add material and labor.
Wall type
Coring concrete block takes longer than framing.
Electrical
A dedicated circuit to the outdoor unit.
Condo rules
Building approval and outdoor unit placement.
What we see on this job
Single-zone mini split
One outdoor unit and one indoor head, sized for a single room or open space. It's the most common install for a garage, a converted room or a bedroom that runs hot. We place the head where its airflow reaches the whole room without blowing on the bed or desk, route the condensate drain so it can't back up, and set the outdoor unit where it has airflow and won't be buried by landscaping. Most single-zone installs are finished in a day.
Multi-zone mini split
A multi-zone system runs two to five indoor heads from one outdoor unit, each with its own control. It suits a home without duct or a group of rooms central air can't reach. The catch is sizing: the outdoor unit has to cover the combined load, and heads that are oversized for small rooms short cycle and leave them damp. We size every head to its room and the outdoor unit to the total, and we keep line set runs within the manufacturer's limits.
Planning range: Mini split per zone (Florida): $3,000-$8,000 per zone in published 2026 guides. A market range, not our quote.
Garage and Florida room cooling
Garages and Florida rooms are the hardest spaces to cool in Miami: single-pane glass or jalousie windows, little insulation, a big door, and afternoon sun. They need more capacity per square foot than an ordinary room, and a head sized from a square-foot rule usually runs flat out and never catches up. We size from the actual walls, glass and door, and we'll tell you when sealing the door or insulating the ceiling first would let a smaller, cheaper unit do the job.
What is included
What a mini split install from us includes
- Load-based sizing for each zone
- Indoor head placement planned with you
- Outdoor unit located for airflow and service
- Block wall cored and sealed
- Insulated line set and sloped drain
- Deep vacuum and leak check
- Dedicated electrical circuit
- Wind-rated outdoor anchoring
- Controls and schedules set up
Do it yourself or call
DIY mini split kits versus a professional install
What a DIY kit offers
- Pre-charged line sets with quick connectors.
- Lower up-front cost.
- Fine for a small, simple room with a short run.
What a professional install adds
- Load-based sizing for hot rooms and garages.
- Cored, sealed wall penetrations in block.
- Permit, wind-rated anchoring and inspection.
- Vacuum and leak check instead of relying on quick connects.
A kit can work for a simple bedroom. Garages, Florida rooms, multi-zone systems and anything needing a permit are worth doing properly once.
Local conditions
Mini splits in Miami condos and block homes
Miami condos lean heavily on mini split systems, which is why cleaning and repairing them is a regular part of our schedule and why we set every install up to be serviceable later. In the concrete block homes built across Miami-Dade since Hurricane Andrew, the line set passes through reinforced block, so we core the wall rather than chisel it and seal the penetration against wind-driven rain.
Step by step
How a mini split install runs
- 1
Measure the rooms
Walls, windows, doors and sun exposure.
- 2
Size and place
Heads and outdoor unit sized and located.
- 3
Approvals
Permit and, in condos, building approval.
- 4
Core and mount
Wall cored, heads and brackets mounted.
- 5
Line set and drain
Run, insulated, sealed and sloped.
- 6
Vacuum and release
Deep vacuum, charge released and leak-checked.
- 7
Set up the controls
Modes, schedules and remote explained.
Brands we service and install
FAQ
Questions Miami customers ask about ductless mini split installation
Published Florida guides put common installs at $2,739 to $8,228, with multi-zone systems costing more per room.
Yes. Multi-zone units run two to five heads, each with its own control.
Yes, when sized correctly; inverter compressors run longer, slower cycles that dry the air.
Yes. Miami-Dade requires a mechanical permit, and condos usually need building approval too.
You can, but warranties and permits often require a licensed installer, and a bad flare leaks.
A single-zone install usually takes a day; multi-zone systems take two or three.
Same category
Related installation work we handle in Miami
AC Line Set Replacement
Line set flush or replace, refrigerant changeover to R-454B.
Condenser Replacement
Outdoor unit only, pad and tie-down replacement.
Mini Split Repair
Mini split leaking water, error codes and boards.
Cool the room central air can't reach
Call the Miami office to book a measurement and a mini split layout priced for your space.
