
Port St. Lucie · Duct Replacement
Duct Replacement in Port St. Lucie, FL
Whole-home duct replacement designed in-house with Manual J and Manual D, then sealed, insulated and balanced. Free in-home quote. Serving Port St. Lucie, FL. 4.8★ on Google with 229+ reviews.
18+
Years in business
4.8★
229+ Google reviews
Licensed
FL #CAC1820211
A+
BBB Accredited
24 / 7
Emergency response
Why Swift AC
What you get with our duct replacement.
Four things we don't compromise on, every job, every customer.

Why this matters
Built for the home you live in.
Your AC is not a piece of equipment. It is the difference between kids sleeping through hot August nights and a hallway fan war at 2 a.m.
We treat every install and repair the way we would want our own family taken care of. Properly sized systems. Honest diagnostics. Clean work that lasts. Because the people you love deserve a home that stays cool, dry, and comfortable, year after year, without you having to think about it.
Why Swift AC
The standard South Florida homeowners trust.
We earn our reputation one job at a time. Every system we install, every repair we make, every customer we serve carries our 100% satisfaction guarantee.
Offers for Port St. Lucie customers
Save on quality HVAC service.
Real, simple deals on the work you actually need. No mystery pricing, no bait and switch.
What customers say
4.8★ on Google with 229+ reviews.
We earn our reputation one job at a time. Here's what your neighbors are saying.
“When you are looking for a reliable, quick and honest HVAC team this is the company you want to deal with. Reach out, you will be wowed. Also, they are nice guys and will spend the time to explain your needs.”

David Ragheb
West Palm Beach
...and 226+ more on Google.
Book your duct replacement in under 30 seconds.
A real Swift AC team member answers, every time. Same-day service across South Florida.
About Port St. Lucie
Duct Replacement in Port St. Lucie, FL.
Port St. Lucie grew enormously in a short time, and much of its ductwork was installed in a hurry. During the 2000s building boom, thousands of homes in St. Lucie West, Torino and the neighborhoods off Gatlin and Becker went up with builder-grade duct systems: long flex runs, tight bends, undersized branches to the far bedrooms and a single return in the hallway. Those ducts are now old enough to sag, tear and leak. On the east side, near the St. Lucie River, homes from the 1980s and 1990s in areas like Sandpiper Bay and the neighborhoods along Port St. Lucie Boulevard carry duct systems that have been reconnected to two or three air conditioners and patched along the way. The city sits inland, but humidity from the river and the flat, wet terrain is constant, and leaky ducts let it in. When bedrooms lag behind and bills keep rising, a properly designed duct system often helps more than a bigger AC in Port St. Lucie.

About this service
Duct Replacement in Port St. Lucie
Your air conditioner can only cool your home as well as your ductwork delivers the air. In South Florida, ducts live in some of the hottest attics in the country, and after years of summer heat, flex duct sags, inner liners tear, insulation flattens and connections pull loose. ENERGY STAR estimates that in a typical house, about 20 to 30 percent of the air moving through the duct system is lost to leaks, holes and poorly connected ducts. In a Florida attic, that cooled air is simply gone, and leaky return ducts pull hot, humid attic air back into your home.
Swift Air Conditioning specializes in whole-home duct replacement. We don't just swap old ducts for new ones in the same layout. Our team designs every system in-house, starting with a room-by-room Manual J load calculation to find out how much cooling each room actually needs, then a Manual D duct design that sizes every supply run, trunk line and return to deliver that airflow. Our goal on every job is every bedroom within 3°F of the thermostat, which matches the room-to-room comfort guideline in ACCA's Manual RS.
Installation is where good designs succeed or fail. Our crews seal every joint with mastic, insulate the new ducts for a Florida attic, support them so they can't sag, add return paths so closed bedrooms keep getting air and seal the connections at the air handler. We pull the permit, schedule the inspection and finish by measuring the airflow at every register and balancing the system.
Signs you may need new ductwork include rooms that never cool down, rising electric bills, dust that returns right after cleaning, a musty smell when the AC starts, sweating vents and ducts that are crushed, torn or disconnected in the attic. If your home still has its original ducts, or they've been patched through several AC replacements, a free in-home quote will show you what you have and what it would take to fix it. We serve homes from Vero Beach to Fort Lauderdale, and our team speaks Spanish. Call (561) 685-8408 to schedule your free quote.
Ruud Pro Partner
Real Swift work in Port St. Lucie.
Watch what to expect when our team shows up. Honest installs, careful technicians, the same standard on every Port St. Lucie job.
Neighborhoods we serve
Local areas in Port St. Lucie.
Duct replacement across Port St. Lucie, including St. Lucie West, Torino, Sandpiper Bay, Lake Charles and the east-side neighborhoods near the St. Lucie River. We cover Port St. Lucie Boulevard, St. Lucie West Boulevard, Gatlin Boulevard, Prima Vista Boulevard, Becker Road, Bayshore Boulevard and US-1, from the river to the western communities.
Local details
Duct Replacement details for Port St. Lucie.
We begin with a free in-home quote that includes an attic inspection and room measurements. Our team runs the Manual J load calculation in-house, then designs the new ducts with Manual D. In boom-era homes, the design usually shortens and upsizes the long runs to the back bedrooms, straightens the tight bends that choke airflow and adds return paths so closed doors don't starve those rooms. In older east-side homes, it replaces patched branches with a clean, properly sized layout. Every joint is sealed with mastic, ducts are insulated for the attic and hung on proper supports, and the air handler connections are sealed against humid attic air. Port St. Lucie covers a lot of ground, so we schedule the work to suit your neighborhood and timeline. The permit runs through the local building department, and we take care of it along with the inspection. Then we measure and balance so every bedroom in your Port St. Lucie home is within 3°F of the thermostat.
Coverage map
Serving Port St. Lucie.
Same-day service across every neighborhood and ZIP code below. No travel surcharges.
Neighborhoods we serve
- Tradition
- St. Lucie West
- Torino
- Sandpiper Bay
- Lake Charles
ZIP codes we cover
8 ZIP codes across Port St. Lucie.
Nearby cities
Duct Replacement in nearby cities.
We service these neighboring cities with the same standard, same response time, and no travel surcharges.
Got questions?
Frequently asked questions
Very possibly. Many Port St. Lucie homes from the building boom have builder-grade ducts with long, undersized runs and a single return. They're now old enough to sag and leak, too. A free in-home quote includes an attic inspection and a look at how the ducts were laid out, so you'll know whether they're holding your system back.
In many Port St. Lucie homes, the back bedrooms are fed by the longest, smallest ducts and have no return of their own, so a closed door cuts off airflow. A Manual D redesign with properly sized branches and return paths usually brings those rooms in line with the rest of the house.
Yes. Homes near the St. Lucie River and along Port St. Lucie Boulevard are often from the 1980s and 1990s, with ducts patched through several systems. We inspect them during a free quote, design a new layout that fits the home and handle the permit, installation and balancing from start to finish.
A room-by-room Manual J load calculation and a Manual D duct design done in-house, removal of the old ductwork, new ducts sealed with mastic, insulated and properly supported, return paths for bedrooms, sealed air handler connections, the permit and inspection, and a final airflow test and balance. The in-home quote is free.
ACCA's Manual RS comfort guidelines call for each room served by a thermostat to stay within 3°F of the thermostat setting while cooling. That's the target we design and balance to. After installation, we measure airflow and room temperatures to confirm the new duct system delivers it.
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Learn moreAirflow Diagnostic & Duct Balancing Assessment
A measured airflow diagnostic for hot and cold rooms: static pressure, room-by-room airflow, duct leakage and thermal imaging, then balancing.
Learn moreManual J Load Calculation & Manual D Duct Design
In-house Manual J load calculations and Manual D duct designs, so your system is right-sized and every room gets the air it needs.
Learn more
Ready when you are
Comfort done right. Let's get started.
Free estimates on installs. Honest diagnostics on repairs. Same-day service across South Florida and a real human on the other end of the line, every time.
Service area
Palm Beach · Broward · Martin · St. Lucie
Licensed FL #CAC1820211


