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The equipment you choose matters less than how it is installed. Sizing, refrigerant charge, airflow and drainage are all decided on the day, and a good unit fitted carelessly will underperform a modest one fitted properly for its entire life.
The Straight Answer
Every efficiency rating on a spec sheet assumes correct installation. Get the sizing, charge or airflow wrong and the system will never reach the numbers you paid for, not in year one and not ever. Uneven cooling, short cycling, high bills and premature failure are usually installation faults rather than equipment faults.
In East Central Florida the margin is thinner than most places. Systems here run under constant heat, high humidity, salt exposure near the coast and extended runtime for most of the year. A shortcut a northern system might tolerate for a decade shows up here within a season or two.
The most consequential decision is sizing, and it is made before anything is ordered. It should come from a cooling load calculation for your actual building rather than from the tonnage of whatever was there before. If the old system was wrong, matching it repeats the mistake for another fifteen years.
Decided On The Day
None of these appear on a spec sheet, and all four are set by whoever fits it.
From a cooling load calculation for the building, not the tonnage of the old unit. This is the one decision that cannot be corrected afterwards without replacing the equipment again.
Weighed to manufacturer specification rather than topped up until it feels about right. An incorrect charge costs capacity and efficiency permanently.
Verified after connection. A new system pushing air through leaking or undersized ducts delivers capacity that never reaches the rooms.
Condensate slope done deliberately. In Florida a system removes a great deal of water every day and it has to go somewhere on purpose.
The Most Expensive Sizing Mistake
Oversizing is the most common installation error in Florida, and it is sold as a benefit.
| What You Notice | Oversized system | Correctly sized system |
|---|---|---|
| Humidity | Cold but clammy. Reaches temperature and shuts off before removing moisture | Runs long enough to dehumidify as well as cool |
| Cycling | Short, frequent cycles that wear components early | Longer, steadier cycles at peak load |
| Comfort | Temperature swings, cold blasts then drift | Stable temperature across the house |
| Running cost | Higher than the rating suggests, from repeated startups | Close to the efficiency you paid for |
| Fixable later? | No. Requires replacing the equipment | Not applicable |
How We Work
Most residential installations finish within a day, depending on size and access.
If your current system is repairable we will say so. A quote for a new system is not a diagnosis, and replacement is a much bigger sale than a repair.
Square footage, insulation, windows, orientation and occupancy, plus duct condition and electrical compatibility. This sets the size.
Equipment, installation scope and total in writing, including whether ductwork needs attention. No obligation.
Matched equipment, hurricane-rated pad, line set, drainage, electrical, permitted to Florida mechanical code. Flooring protected, site left clean.
Charge weighed to spec, airflow verified, full startup testing. The system is proven working rather than assumed working.
Before And After Installation
Residential, multi-family, retail, medical, office and managed communities.
Often the better answer. Get a diagnosis before accepting a replacement quote from anyone.
View AC RepairWhat protects the installation, and usually the manufacturer warranty with it.
View MaintenanceThe limiting factor on more systems than people realise. Worth checking before upgrading equipment.
View DuctworkThe dominant system type in this region, handling both cooling and winter heating.
View Heat Pump InstallationRooftop placement, crane coordination, permits and inspections, load verification and balancing.
View Commercial ReplacementWhere a house needs more moisture removal than any correctly sized air conditioner can provide.
View DehumidificationWorth considering at replacement if some rooms have never held temperature properly.
View ZoningThrough Wells Fargo Retail Services, subject to credit approval. Get the quote first.
View FinancingCommon Questions
Most residential installations finish within a day, depending on system size and how accessible the equipment locations are.
Older properties, awkward attic access or ductwork needing modification can extend that. We will tell you which applies to your home before the day rather than discovering it halfway through and leaving you without cooling overnight.
Sometimes it is possible, but it is frequently a false economy.
The condenser and air handler are designed as a matched pair, and pairing a new outdoor unit with an old indoor one usually means neither reaches its rated efficiency. It can also affect warranty coverage. We will tell you honestly whether a partial replacement makes sense for your system, or whether you would be paying for performance you will not receive.
From a cooling load calculation for your building: square footage, insulation, windows, orientation and occupancy.
Not from the tonnage of whatever was installed previously, which is the common shortcut and simply perpetuates an earlier guess. If the old system was wrong, matching it repeats the mistake for another fifteen years. This is a fair thing to ask about specifically, because a load calculation takes real time and is the first thing skipped on a fast quote.
Often not, but it does need checking.
A new system pushing air through leaking or undersized ducts will underperform regardless of its rating, and you would be paying for capacity that never reaches the rooms. We verify airflow as part of installation and will tell you if the ductwork is the limiting factor. Sometimes duct modification is worth more than a higher-efficiency unit, which is not the more profitable recommendation but is often the right one.
Possibly, and we would rather establish that first. A system in reasonable condition with one failed component is usually worth repairing. Equipment near the end of its service life with repeated failures generally is not.
What failed, refrigerant type, repair history and what the next fault would cost all matter more than age alone. Get a diagnosis before accepting a replacement quote from anyone, including us. See AC repair.
Salt accelerates corrosion, particularly on condenser coils and fins, and it is a real consideration for properties near the water.
It influences where the outdoor unit sits, whether protective coatings are worth specifying, and how often the coil should be rinsed. A system installed a few streets from the ocean has a different maintenance reality from one inland, and it is much better discussed before purchase than discovered afterwards. Coated coils cost more upfront and are usually worth it east of the Intracoastal.
Where We Install
AC Installation
Licensed since 1976 under Florida CAC029376. Load calculated, hurricane-rated pad, charge to specification, airflow verified, system tested before we leave.
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 386-361-5500.