Mini-splits are having a moment, and half the questions we get are some form of 'should I just do mini-splits everywhere?' Here's where they're genuinely brilliant in Florida — and where the trend outruns the sense.
Where mini-splits win outright
- ▸Garages and workshops: the classic Florida use case — conditioning a space your central system was never designed to touch, without duct surgery.
- ▸Additions and enclosed lanais: extending ductwork to an addition often overloads the existing system; a dedicated mini-split solves it cleanly.
- ▸Casitas, in-law suites, and offices over garages: independent control, no shared ducts.
- ▸Hot rooms the ducts underserve: that one west-facing bedroom that's always 4° behind the house.
- ▸Homes with no ducts at all: older block houses running window units — mini-splits are transformative there.
What they cost and deliver
A quality single-zone system installed typically runs in the $3,500-$7,000 range depending on capacity and line-set complexity — often less than extending and rebalancing ductwork, and the inverter-driven efficiency is excellent. They also dehumidify beautifully when sized right, which matters here more than anywhere.
Where central still wins
- ▸Whole-home replacement of a working ducted layout: multi-zone mini-split systems for an entire house usually cost MORE than a quality central system — and put a wall unit in every room, an aesthetic not everyone signs up for.
- ▸Uniform comfort across many small rooms: one properly designed duct system beats six wall heads for evenness and simplicity.
- ▸Resale conservatism: mainstream buyers still expect central; a house cooled entirely by wall units invites questions.
The honest pattern: central for the house, mini-split for the space central can't reach. We install both and will tell you which your project actually is.
Garage, addition, or hot room? Ask about a mini-split with your instant HVAC quote.