Green Works AC handles HVAC system change-outs in Hobe Sound, DL for homeowners whose air conditioner is worn out, repeatedly breaking down, or no longer keeping the house comfortable. A change-out means taking out the old equipment and installing a new system that suits your home. Call or send a request and we will arrange a visit to look at what you have now and walk you through your options.

Maybe the house never cools past mid-afternoon. Maybe the unit runs all day, the bills keep climbing, or the last repair quote was close to the cost of a new system. In South Florida the AC works hard for most of the year, so equipment tends to age faster than it would in a milder climate. When repairs start stacking up, a planned change-out is usually less stressful than waiting for a total breakdown in the middle of summer.


Change-out or repair

People often use "repair," "replacement," and "change-out" as if they mean the same thing. They do not.

  • Repair fixes one failed part, such as a capacitor, a fan motor, or a drain problem, and leaves the rest of the system in place.
  • Replacement of a single component swaps out something larger, like an outdoor unit or an air handler, on its own.
  • A change-out replaces the system as a whole so the indoor and outdoor equipment are new and work together.

This page covers full system change-outs. If you only need a failed part fixed, that falls under our AC repair work, and we are glad to talk through which path makes more sense for your house.


Signs it is time

No single symptom decides it, but several together usually point toward a change-out.

  • The system is well into its second decade or close to it
  • Repairs are happening every season, sometimes more than once
  • Some rooms stay warm while others turn cold
  • Humidity stays high indoors even when the AC is running
  • Energy bills have risen without any change in how you use the house
  • The unit uses an older refrigerant that is getting harder and more costly to service
  • Noises, odors, or frequent short cycling have become normal

When repair still makes sense

If the system is fairly young and the problem is a single failed part, repairing it is often the sensible choice. An honest evaluation should tell you that, not push you toward new equipment you do not need.

When waiting costs more

A system that fails in July leaves you scrambling with fewer choices and less time to compare. Replacing it before it quits gives you room to plan the work and choose equipment calmly.


How a change-out goes

Every home is different, but most change-outs follow the same general order.

  1. Evaluation. A technician looks at the current equipment, the air handler location, the thermostat, the ductwork, and how the home is used. We use diagnostic tools so the recommendation rests on measurements and not guesses.
  2. Options and quote. You review equipment choices and a written quote that explains what is included and what is not.
  3. Removal. The old indoor and outdoor units are disconnected and taken out.
  4. Installation. The new equipment is set, connected, and wired, with the refrigerant lines, drain line, and controls tied in.
  5. Startup and testing. The system is run and checked so airflow, cooling output, and thermostat operation are confirmed before the job is closed out.
  6. Walkthrough. You get an explanation of how the new system works and what routine care it needs.

Ductwork and the rest of the system

A new air conditioner connected to tired, leaky, or dirty ducts will not give you the comfort you paid for. During the evaluation, the duct condition is worth a look. Air duct cleaning and robotic air duct inspections are separate services from the change-out itself, but they pair naturally with one when ducts show signs of buildup or damage. Pool heating is also its own service. If you want it looked at, just ask and we can discuss it separately.


Brands we install

We service and install all major HVAC brands, including Lennox, Trane, Carrier, Rheem, Goodman, Daikin, Bryant, Amana, RUUD, York, Tempstar, and Payne. Because we are not tied to a single manufacturer, the conversation can start with your home, your budget, and how you use the space instead of with whatever brand is on the truck. Matched indoor and outdoor equipment is the usual goal, since mismatched parts can limit what a new system can deliver.


What affects the cost

Two change-outs on the same street can look very different on paper. The main factors are:

  • System size and capacity needed for the square footage and the way the house is built
  • Equipment type and brand, including efficiency level and features such as variable-speed operation
  • Indoor equipment location, since attics, closets, and garages all affect access and labor
  • Ductwork condition, including whether repairs or modifications are needed
  • Thermostat and controls, whether basic or more advanced
  • Permits and code requirements that apply to the job
  • Extras such as new pads, drain line changes, or electrical updates

A clear written quote should spell out the exact equipment by model, what labor covers, what is excluded, and how changes are handled if something unexpected turns up once the old system is removed. If a quote is a single line with a total, ask for more detail before you sign.


Doing it right

Here are standards you can use to judge any contractor's change-out work.

  • Sizing is calculated, not assumed. Installing the same size as the old unit without checking is a common shortcut.
  • The old system is fully removed and the work area is left clean.
  • Connections are tested. Refrigerant lines, drain lines, and electrical connections should be checked before the crew leaves.
  • The system is started and measured. Airflow and temperature performance should be confirmed, not just a quick power-on.
  • You get a clear explanation of the thermostat settings, filter care, and what to watch for in the first weeks.

Questions to ask first

Before you hire anyone for a system change-out in the Hobe Sound area, ask:

  1. Are you licensed for this work in Florida, and who pulls the permit? Ask to see proof, and confirm how inspections are handled.
  2. Are you insured? Request a certificate so you are protected if something goes wrong on your property.
  3. What exactly is included in the price? Equipment, labor, disposal of the old unit, permits, thermostat, and any ductwork changes should each be named.
  4. How did you determine the system size? A real answer involves your home, not just the old nameplate.
  5. What is the schedule and how long will the system be off? Ask how delays or surprises will be communicated.
  6. What warranty terms apply to parts and labor? Get them in writing and keep a copy.

Serving Hobe Sound and nearby

We work out of Hobe Sound and serve homeowners across Martin County, along with Indian River, Okeechobee, Saint Lucie, Palm Beach, and northern Broward counties. Homes here vary widely, from older concrete block houses to newer builds, and each has its own layout, attic space, and duct design. That is why we start with a look at your house before recommending equipment.


Common questions

How long does an AC change-out usually take?

It depends on the size of the home, where the indoor unit sits, and whether the ducts need work. Many straightforward jobs can be completed in about a day, while larger or more complicated ones take longer. Your technician can give you a realistic schedule after seeing the house.

How do I know if I should replace instead of repair?

Look at the age of the system, how often it has needed service, the cost of the current repair, and how well the house cools and dries the air. If problems are piling up on older equipment, replacing it usually makes more sense than another repair.

How is the price of a change-out worked out?

It comes down to system size, equipment type, installation difficulty, ductwork condition, permits, and any extras. A written quote should list each of these so you can compare options clearly.

Do I need to replace the ducts too?

Not always. Ducts in good shape can often be reused. If they are damaged, leaking, or heavily contaminated, repairs, cleaning, or an inspection may be worth considering alongside the new system.

When is the best season to replace an AC in South Florida?

Cooling is needed most of the year here, so there is rarely a slow season. Replacing before the hottest, most humid months gives you more scheduling flexibility, but a system that is already failing should not wait for ideal timing.

What should I do to prepare for installation day?

Clear access to the indoor unit, the outdoor unit, and the thermostat. Move furniture or stored items out of the way, and make arrangements for pets. Your technician can tell you anything else to expect once the schedule is set.

To talk through a change-out for your home, call or send a request and we will take it from there.

Your AC Can’t Wait. Neither Can We.

One call is all it takes. A NATE-certified technician arrives equipped, diagnoses it right, and gets your system running fast.