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Before
After
Before
AfterAC Replacement in Miami, FL
In Miami, an AC replacement typically costs between $5,500 and $11,500 for a full system swap, depending on home size, unit efficiency, and ductwork condition. Most replacements take one to two days once equipment arrives. Dalton Heating & Air Miami gives you the price in writing before any work starts, and every replacement is backed by our 365-Day Done Right Promise. Call (850) 754-6042 for a free estimate.
Full system replacement is not a repair job stretched out, it is a fresh install of a new outdoor condenser, indoor air handler or evaporator coil, and usually new line set and pad. We do this work under The Garrison Standard, the operating code our parent company has held since 2003. If you know your system is approaching the end of its useful life, this page tells you what to expect, what it costs in the Miami market, and who shows up at your door. If you are still weighing repair against replacement, start with our AC Repair & Installation page for the full picture.
When You Need AC Replacement
Replacement is a judgment call, but some signs are hard to argue with. Here is what we see in Miami homes before a replacement gets scheduled:
- R-22 refrigerant systems. If your outdoor unit still runs on R-22 (Freon), the refrigerant alone can cost more per pound than the repair is worth. Production stopped in 2020 and Miami supply houses price it accordingly. Units this age are usually 15+ years old.
- Compressor failure on a unit past 10 years. A compressor swap on an aging system often costs 40 – 60% of a new unit. Replacing the compressor on a 12-year-old Goodman or York condenser is rarely the smarter money.
- Coil leaks that return within a season. Evaporator coil replacement can buy time, but when a second leak shows up in 18 months, the system is telling you something. Salt air near the coast accelerates this.
- Rising summer bills without a change in usage. In Coral Gables and Pinecrest, we see SEER losses of 20 – 30% on systems past year 12. A new 16 SEER2 unit from Daikin or Bryant typically cuts cooling cost noticeably.
- Parts that are no longer manufactured. If your condenser needs a control board that is discontinued, you are done. We will not patch a safety-critical system with used or gray-market parts.
Our AC Replacement Process
This is the exact sequence for every replacement Dalton Heating & Air Miami installs, including any needed Capacitor Replacement:
- Live call, not a voicemail. You call (850) 754-6042, a real person answers, and we schedule the visit inside a window you approve.
- Load calculation and system assessment. We measure the home, not the old unit. Square footage, window orientation, insulation, and duct condition all factor in. We never size a replacement by “same as the old one.”
- Written quote on the spot. You get the full price in writing before any work starts. This includes equipment, labor, materials, permit, and haul-away. No line item appears later that was not on that sheet.
- Installation day, by the book. Background-checked, uniformed technicians arrive on time. We replace the line set where code requires, set the pad level, braze with nitrogen purge, and pull a proper vacuum below 500 microns. We do not skip the vacuum step to save an hour.
- System startup and homeowner walkthrough. We verify superheat and subcooling, register your equipment warranty with the manufacturer, and show you the thermostat and filter access before we leave.
- Written guarantee and follow-up. Every replacement carries a 365-Day Done Right Promise. If the work is not done right, we make it right. If a repair fails within the guarantee period, we return at no charge. That promise is in writing, on every job, without exception.
AC Replacement Pricing in Miami
Here are realistic ranges for full system replacement in Miami-Dade, based on the jobs we quote every week:
- 2-ton basic system (14 – 15 SEER2), single-stage: $5,500 – $7,200
- 3-ton mid-tier system (16 SEER2), single-stage: $6,800 – $8,500
- 4-ton high-efficiency system (17 – 18 SEER2), two-stage: $8,500 – $11,500
- Add-ons that change the price: new line set when the old one is undersized or kinked, condensate pump replacement, attic access work, or upgraded filtration. We quote these in writing before touching anything.
What moves the number most in Miami: whether your ductwork is reusable, whether the electrical disconnect and whip meet current code, and whether the old pad needs concrete work. We are factory-trained on York, Daikin, Bryant, and American Standard equipment, so our recommendations come from what we can actually service correctly after the install, including Compressor Repair if needed.
Every quote is free. Call (850) 754-6042 and we will put a firm number in front of you before you commit to anything.
FAQs – AC Replacement
How much does AC replacement cost in Miami?
A full AC replacement in Miami runs $5,500 to $11,500 for most homes, with the final number depending on system size, efficiency tier, and whether ducts or electrical work need updating. Dalton Heating & Air Miami puts your exact price in writing before any work starts, so the quote you receive is the price you pay. Call (850) 754-6042 for a free, no-obligation estimate.
Is it cheaper to repair or replace my AC?
If your system is under 10 years old and the repair is under $600, repair usually wins. If it is past 12 years and the repair is a compressor, coil, or control board, replacement is almost always the smarter long-term money. We will show you the numbers for both options and let you decide without pressure. Call us at (850) 754-6042 for an honest read on your system.
How long does AC replacement take in Miami?
Most single-system replacements take one full day, sometimes two if the job involves attic air handler work, significant duct modification, or a Refrigerant Recharge. We keep you informed of the schedule before we start, and the crew does not leave until the system is cooling and the site is clean.
Do you service all major AC brands?
Yes. Our technicians are factory-trained on nine major residential HVAC brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. You do not need to buy a specific brand for us to replace your system correctly, and we size the equipment to your home, not to a sales target.
Can you come today for AC replacement?
No. A proper replacement requires a load calculation, equipment ordering, and scheduling. What we can do today is send a technician to assess your system and give you a written quote. Call (850) 754-6042 and we will be there fast.
Written by Marco Benitez, Owner at Dalton Heating & Air Miami, serving Miami.