How to Choose an AC Contractor in South Florida: Red Flags and Right Questions
You Are Usually Choosing at the Worst Possible Moment
Almost nobody researches AC contractors calmly. The typical sequence is: the system dies on a Saturday in July, the house hits 88 degrees, and a decision that will last fifteen years gets made in an afternoon under physical discomfort and time pressure.
Contractors who rely on that pressure know it. The best defense is knowing in advance what a good answer sounds like.
Verify the Basics Before Anything Else
License. Florida licenses HVAC contractors at the state level. Ask for the number and verify it is active through the Department of Business and Professional Regulation. This takes two minutes and eliminates a whole category of problems.
Insurance. Ask for a certificate showing general liability and workers' compensation. An uninsured injury on your property can become your financial problem.
Permits. Ask directly: "Are you pulling the permit under your license?" The correct answer is yes, and it should already be in the quote. See our guide on permits and licensing in Miami-Dade and Broward.
Physical address and history. A local business with a real address and years of local reviews is accountable in a way a phone number is not.
The Question That Tells You the Most
Ask: "How did you determine that tonnage?"
A good contractor will describe measuring your home — window areas and orientation, ceiling heights, insulation, duct condition — and will offer to show you the load calculation. A weak one will say something about square footage, or simply match whatever is currently installed.
This single question separates contractors more reliably than anything else, because doing it properly takes time that a company optimizing for volume will not spend. And sizing is the decision you cannot undo later. Our guide on AC sizing covers why it matters so much here.
What a Real Estimate Contains
A written, itemized estimate should specify:
- Exact model numbers for both the indoor and outdoor units, and the matched system's SEER2 rating
- Whether ductwork is being repaired, sealed or replaced, and what condition it is in now
- Permit and inspection included
- Hurricane tie-downs, electrical disconnect and condensate drainage in the scope
- Labor warranty terms, separate from the manufacturer's equipment warranty
- Who registers the manufacturer warranty
- Removal and disposal of the old equipment
A one-line quote with a price and a tonnage is not an estimate. It is a number.
Red Flags
Pressure to decide today. "This price is only good if you sign now" is a sales technique, not a business reality. Equipment pricing does not change hourly.
A quote without an inspection. Anyone quoting a system replacement over the phone without seeing the house, the ducts or the electrical panel is guessing.
Cash-only, or a large deposit up front. A deposit is normal. Most of the money before any work happens is not.
Asking you to pull the permit. This shifts liability to you and usually signals a licensing problem.
Refrigerant top-offs without leak diagnosis. A contractor who adds refrigerant every season without finding the leak is selling you a subscription to a problem.
Condemning a system without showing you why. If a technician says the compressor is dead, ask them to show you the reading. A good technician expects that question and welcomes it.
A price dramatically below the others. Ask what is not included. It is usually the permit, the ductwork, or the load calculation.
Questions Worth Asking
- Are your technicians employees or subcontractors?
- What is the labor warranty, and what voids it?
- Who handles a manufacturer warranty claim in three years — you or me?
- What did you find with my ductwork?
- What happens if the inspection fails?
- Do you offer maintenance, and does the warranty require it?
That last one matters more than people expect: most manufacturer warranties require documented annual maintenance, and a homeowner who does not know that can lose coverage without realizing it.
On Reviews
Read the recent ones and the mid-range ones. A wall of five-star reviews with no detail is less informative than three reviews that describe a specific problem and how the company handled it. Look for how the business responds when something went wrong — that is the behavior you are actually buying insurance against.
Decide Before You Need To
The best time to pick a contractor is while your system still works. Have a maintenance visit done by a company you are considering — it is a low-stakes way to see how they communicate, whether they show up when they said, and whether they try to sell you something you do not need.
Quality Breeze has served South Florida since 1999 as a licensed, insured Factory Authorized Carrier Dealer. Every estimate is written and itemized, every installation includes a load calculation and a permit, and we will tell you when repair is the better answer than replacement. See our services or request a free estimate across Miami-Dade, Broward and West Palm Beach.