AC Installation & Replacement · Miami-Dade County

AC Installation Miami: Properly Sized Systems, Installed Right

A new air conditioner is one of the largest purchases you will make for your home — and in Miami it will run harder than almost anywhere in the country. David Solutions Air Conditioning sizes every system with a load calculation, inspects your ductwork before quoting, and installs Carrier, Trane, Goodman, Rheem and other major brands, with a free in-home estimate and financing for qualifying installations.

New AC condenser installed on a raised pad beside a Miami home with an insulated line set

Signs It's Time for a New AC in Miami

Why Sizing Matters More in Miami Than Almost Anywhere

Most installation problems we are called to fix are not equipment problems — they are sizing problems. An oversized unit cools the air fast, shuts off, and never runs long enough to pull moisture out. The result is a house at 74°F that still feels sticky, with mold risk in closets and ducts. An undersized unit runs non-stop in August and still can’t keep up.

Before we recommend any system, we complete a load calculation CLIENT CONFIRMATION REQUIRED — confirm Manual J or equivalent that accounts for your square footage, insulation, window area and orientation, ceiling height and number of occupants. The tonnage comes from that calculation — not from what was installed last time, and not from a rule of thumb.

Too big

74°F

Short cycles · damp air

Right size

75°F

Long steady cycle · ~50% RH

Too small

82°F

Runs nonstop

Our AC Installation Process

1. Free In-Home Evaluation

We look at the existing equipment, the air handler location, the electrical service, the condensate drain route and the ductwork — including attic runs and the plenum that most quick quotes ignore.

2. Load Calculation and Written Options

You receive a written quote with clear options at different efficiency and price levels, and a plain explanation of what you gain by spending more — or why you don't need to.

3. Permit and Scheduling

AC replacements in Miami-Dade require a mechanical permit from the local building department. We handle the permit and schedule the work to keep the time you are without cooling as short as possible.

4. Professional Installation

Old equipment is removed and disposed of properly, refrigerant is recovered, the new condenser is set level and secured to its pad, line sets are cleaned or replaced, and the system is evacuated and charged to the manufacturer's specifications.

5. Start-Up, Testing and Walkthrough

Old equipment is removed and disposed of properly, refrigerant is recovered, the new condenser is set level and secured to its pad, line sets are cleaned or replaced, and the system is evacuated and charged to the manufacturer's specifications.

AC Systems We Install

Outdoor AC condenser of a central split system beside a Miami home

Central Split Systems

The standard for most Miami homes: an outdoor condenser paired with an indoor air handler and coil. We match indoor and outdoor components so the system performs as rated.

Heat pump outdoor unit on a pad beside a South Florida home

Heat Pumps

A heat pump cools exactly like an air conditioner and also gives efficient heat on the handful of cool nights Miami gets each winter.

Wall-mounted ductless mini-split indoor unit in a bright Miami living room

Ductless Mini-Split Systems

Ideal for additions, converted garages, older homes without ductwork, or rooms that never cool properly.

New vertical air handler installed in a clean utility closet with new refrigerant and drain lines

Air Handler or Condenser-Only Replacement

If only one half of the system has failed, replacing just that half is sometimes possible — but compatibility and refrigerant type matter. We tell you when it makes sense and when it doesn't.

What a New AC Costs in Miami

For most Miami homes, a complete central AC installation runs from about $5,500 to $12,000 or more, depending on system size, efficiency rating, brand, and how much ductwork, electrical or structural work the job needs. Single-zone ductless mini-splits typically start around $1,500–$3,000 installed.

Complete central AC system

$5,500–$12,000+

Single-zone ductless mini-split

$1,500–$3,000

Financing available

Ductwork: The Part Most Installers Skip

Andrew G., Google review

HVAC technician inspecting attic ductwork and a supply plenum during an AC replacement in Miami

Why Homeowners Choose David Solutions for a New AC

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Roberto La Rocca
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Great experience. Very knowledgeable, honest, and trustworthy.
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Allie Grady profile picture
Allie Grady
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David and his team were amazing! They helped us clean and repair our AC handler unit, which had been causing damage to our home, and worked with us to find a solution that stayed within our budget. Their professionalism, expertise, and willingness to communicate throughout the process made everything so much easier. We will definitely use David and his team again and highly recommend them!
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Roger Garcia
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David help me repair the air condition of the rental house on a Sunday, his service was excelent and precise, his troubleshooting technique are superb, thanks you for your profesionalism and I will recomend his service to all my clients. He is very honest and a great person.
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Martha Borges
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Excelente customer services y un muy profesional en su trabajo, explicando detalladamente todas los detalles del equipo y las alternativas para todas las soluciones y la reparación quedó excelente
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Tania Castillero Acosta
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La experiencia fue buena con conocimiento de lo que trabajo gracias
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Claudia Paez
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Excelente servicio , eficiencia . Un trato cordial , amable y muy educado . Recomiendo a David plenamente !!!
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Stevan Petrovic
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Amazing experience with David. He showed up on Sunday evening, fixed my AC and installed thermostat.
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Cristina Ruenes
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David gracias me dejastes el aire como nuevo. David te ensena lo que tiene el aire ye explica como manterlo trabajando sin problema y te da sujeremcia. bien respetuoso de loa alrededores y personal lo recomiendo con los ojos cerados Gracias David!!
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h c
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Great service for our home a/c unit when we needed some old parts replaced, thank you!
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Roy Suarez
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Everything was great, excellent work

AC Replacement Across Miami-Dade

AC Installation Miami — Frequently Asked Questions

How long does an AC installation take?

Most straightforward replacements are completed in one day. Installations that involve ductwork changes, relocating equipment or adding a new system can take two to three days.

Only a load calculation answers that accurately. As a rough reference, many 2,000 sq ft Miami homes land between 3.5 and 4.5 tons, but insulation, windows, sun exposure and layout can move it significantly.

Yes. AC replacements require a mechanical permit from the local building department. Our team takes care of it

With regular maintenance, most central systems in Miami last around 10 to 15 years. Coastal salt air and skipped maintenance shorten that.

No. The federal 25C credit ended for equipment placed in service after December 31, 2025. Ask us about any current utility or manufacturer promotions when we visit.

Yes, for qualifying installations terms. We explain the options during the free estimate.

Yes — single-zone and multi-zone systems for additions, garages, older homes and problem rooms.

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