Garages, room additions, sunrooms, converted offices and older houses with no ductwork at all — a ductless mini-split puts real, dehumidified cooling in one space without touching the rest of the house. Advanced Cooling and Heating sizes, installs, repairs and services them across Southeast Florida.
Licensed, Insured & Code-Compliant • License #CAC057209 • Warranty-Backed Workmanship • Financing Available
What We Do
Advanced Cooling and Heating is a licensed Florida HVAC contractor (License #CAC057209), established in 1996, installing, repairing and servicing ductless mini-split systems across Palm Beach County and Southeast Florida. A mini-split pairs a compact indoor air handler with an outdoor condenser, joined by a refrigerant line set only a few inches across — so a room can be properly cooled without adding a single duct.
That makes ductless the practical answer for the spaces central air was never run to, or never sized for: a garage that has become a gym, a slab addition off the back of the house, a Florida room that bakes from ten in the morning, an upstairs bedroom the existing system cannot keep up with. Installation is quick and largely non-destructive — a three-inch penetration through the wall rather than a rebuilt ceiling.
The other half of the story is humidity. Inverter-driven compressors ramp up and down instead of switching hard on and off, so the system spends more time running slowly — and a coil that runs long and slow pulls far more moisture out of the air than one that blasts and stops. In a climate where the discomfort is as much damp as heat, that behaviour matters more than the SEER number on the box.
Know When It Fits
Ductless is not a replacement for a working central system. It is the answer for the one room that central air cannot reach, cannot keep up with, or was never designed to serve — and for buildings where running new duct is either impossible or costs more than the cooling is worth.
Sometimes the honest answer is that the existing system is undersized, the return air is choked, or the duct to that room is crushed or disconnected — and a mini-split would be an expensive way to paper over it.
We look at the whole picture before quoting. If fixing the ductwork is the cheaper and better fix, we will tell you that instead.
How We Install
A mini-split is a sealed refrigerant system assembled on site, and almost every early failure traces back to how it was put in rather than what was bought. Single-zone systems run one indoor head from one condenser; multi-zone systems run several heads from a shared outdoor unit, each with its own setpoint. Both are installed to the same standard.
Sizing for the actual room — glass area, orientation, ceiling height, insulation and heat from equipment. Oversizing is the most common ductless mistake and the one that causes clammy rooms.
Mounting height and throw chosen so air reaches the far side of the room, with condensate fall and line access worked out before anything is cut.
Refrigerant lines run with proper bend radius and insulation, and the wall penetration sealed against water and insects — a detail that matters a great deal in this climate.
The system is evacuated to pull out air and moisture, then held under pressure to prove the joints before refrigerant goes in. Skipping this is why some mini-splits fail in year two.
Refrigerant charged to the manufacturer’s figure for the installed line length, then verified in operation rather than guessed from a gauge reading.
Dedicated circuit confirmed at the panel and a code-compliant disconnect installed at the condenser. Garage and addition circuits frequently need upgrading before a system can go in.
Pad or bracket set for storm conditions and secured to withstand Florida wind load, positioned clear of salt spray and standing water where the site allows.
Gravity drain or a condensate pump configured and tested. Indoor heads are mounted on finished walls, so a drain that backs up shows up as a stain before it shows up as a fault.
Controls paired, operating pressures and temperature split confirmed, and the system handed over running to specification rather than simply switched on.
When It Stops Working
Mini-splits are compact but they are still refrigerant systems with electronics, and they fail in their own particular ways. We repair and maintain ductless systems across Palm Beach County — including systems we did not install.
Ductless heads pull room air straight across a wet coil through washable filters, with no ducted filter upstream. In Florida humidity that coil grows biofilm quickly, and a coated coil loses capacity long before it throws a fault.
Regular service covers filter and coil cleaning, condensate flow, refrigerant pressures and electrical checks — and it is the difference between a system that lasts and one that limps.
The Honest Math
Ductless equipment is cheaper to replace than a full central system, which shifts the break-even point earlier than most people expect. When we quote a repair on an older head we show you both numbers rather than only the one in front of us.
A sound system with one identified fault is worth fixing, and usually finishes in a single visit.
A newer system will dehumidify better, run quieter and cost less to operate. Financing is available.
How We Work
Most single-zone installations are completed in a day. You approve the scope and the price before any work starts, and nothing gets cut until the layout is agreed.
We look at the room, the electrical panel and the outdoor wall, and confirm ductless is genuinely the right fix rather than a workaround for something else.
Cooling load calculated for the actual space, single-zone or multi-zone recommended, and a written quote covering equipment, electrical and permits.
Head position, line routing and condenser location walked through with you on site, so you know exactly what will be visible before anything is drilled.
Mounting, line set, electrical and drainage carried out to Florida code, followed by evacuation, pressure test and charge by weight.
We verify temperature split, airflow and humidity control, set up the controls with you, and cover the filter cleaning that keeps it performing.
Related Services
A mini-split solves one room extremely well. When the problem is the whole house — weak airflow, an ageing system, humidity everywhere rather than in one space — these are the services that usually apply instead, or alongside.
When the whole house is struggling rather than one room, a correctly sized central system is the better investment. Load-calculated, permitted and inspected.
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Ductless heads need their filters and coils kept clean to hold capacity. Twice-yearly service is the Florida standard, not the annual visit used up north.
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A mini-split that runs but will not cool is often losing refrigerant at a flare joint. We find and seal the leak and pressure-test it rather than topping it up.
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Humidity, salt air and biological growth coat coils faster here than almost anywhere. A coated ductless coil loses capacity long before it throws a fault code.
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If repairs on the main system have become routine or the compressor has gone, replacing it may make more sense than adding ductless around the edges. Financing available.
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Also Available
Where We Work
We install and service ductless systems throughout Palm Beach County and the surrounding Southeast Florida communities. Coastal properties get particular attention on condenser siting and corrosion — a mini-split condenser is small and often mounted on a bracket, which puts it closer to salt spray than a ground-set unit would be.
Cost depends on system size, number of zones, and installation complexity. A structured evaluation ensures proper sizing and performance alignment.
In certain layouts, yes. Multi-zone mini-split systems can serve entire homes. They are also commonly used as supplemental systems for additions or isolated rooms.
Yes. Many ductless mini-split systems exceed traditional SEER efficiency ratings. Inverter-driven compressors reduce energy waste by adjusting output based on demand.
Modern inverter-driven systems operate quietly compared to window units and portable systems. Outdoor units are also designed for low sound levels.
Yes. Many mini-split heat pump systems provide both heating and cooling for year-round use.
From emergency AC repairs and refrigerant leak detection to full HVAC system replacement, ductwork installation, heat pump service, and indoor air quality solutions, our HVAC technicians are ready to respond.
If you are experiencing no cooling, system failure, electrical issues, or AC leaks, call now for priority dispatch at 561-697-4247.
If a head has stopped cooling, is leaking water onto the wall or is tripping the breaker, call for service. Switch it off at the handset first — running a ductless system that is iced up or low on refrigerant is what turns a repair into a replacement.
Licensed • Insured • Code-Compliant • Financing Available
Book a site visit and a licensed Advanced Cooling and Heating technician will size the space properly, walk you through where everything goes, and quote it in writing — across Palm Beach County and Southeast Florida.
Ductless Mini-Split Installation Palm Beach County Florida | Single-Zone & Multi-Zone Systems | Licensed HVAC Contractor #CAC057209 | Serving Southeast Florida Since 1996
Advanced Cooling and Heating has proudly served residential and commercial clients since 1996. Our insured technicians deliver dependable HVAC services, including AC repair, installation, system replacement, indoor air quality solutions, and emergency service throughout Palm Beach County.
License #CAC057209
