Your air conditioner can be perfect and your house still uncomfortable — if the ducts are leaking, crushed, or undersized. Ductwork is the delivery system, and in South Florida it usually lives in the hottest part of the house: an attic that hits 140 degrees in August.
We repair, redesign, and replace residential ductwork across West Palm Beach. Every replacement quote we write includes a ductwork evaluation, because new equipment on bad ducts wastes the investment.
Ducts Are Half the System
The air conditioner makes cold air; the ducts deliver it. Leaks, kinks, and poor design can waste a large share of that cold air into the attic before it ever reaches a register.
Symptoms of duct trouble look like equipment trouble — weak airflow in some rooms, the system running constantly, dust at the registers, high electric bills. We check the ducts before recommending equipment, so you fix the actual problem.
140-Degree Attics and Leaky Ducts
Florida attics are brutal. Duct joints loosen, flex duct sags and kinks, and insulation compresses — every one of those leaks expensive cooled air into superheated attic space and pulls hot, humid air back in.
We find the leaks, seal and repair the joints, replace crushed or deteriorated runs, and make sure insulation is intact. Sealed ducts in a hot attic are one of the highest-return fixes in a Florida home.
What We Find in Older East-Side Homes
In El Cid, Flamingo Park, Northwood, and Grandview Heights, original ductwork has often been modified by several owners over the decades — runs added for an addition here, a vent closed off there, flex duct spliced onto rigid trunk lines. The result is systems that look fine on paper but cannot move air where it needs to go.
Undersized return air is the classic: the system is starved for air coming back, which chokes cooling capacity and can freeze the coil. Adding or enlarging returns is often a straightforward fix with an outsized effect on comfort.
Airflow Balancing
Some rooms roar while others whisper — that is a balancing problem, and it is fixable. Dampers, register adjustments, and duct corrections even out airflow so every room gets its share.
This is especially common in two-story homes and in houses where an addition was tied into the original duct layout. Balanced airflow means the thermostat reading actually represents the house.
Design Informed by Manual D
When ducts need a full redesign, we design to Manual D — the industry standard for residential duct design. Calculated duct sizes, proper fittings, and planned airflow for every room, not rules of thumb.
A designed system is quieter, more even, and easier on the equipment — and it is documented, so future technicians know what they are working with.
Common questions
How do I know if my ducts are leaking?
Weak airflow in some rooms, dust puffing from registers, the system running longer than it used to, and hot or cold spots are the classic signs. We inspect accessible ductwork and show you what we find.
Can you fix ducts without replacing everything?
Often, yes. Sealing joints, replacing crushed runs, and correcting fittings solves many problems. Full replacement is for ducts deteriorated throughout or fundamentally misdesigned.
What is an undersized return?
The return-air path back to the air handler is too small for the equipment. The system starves for air, cooling capacity drops, and coils can freeze. Adding return capacity fixes it.
How long does duct replacement take?
Most residential duct replacements take one to two days. We protect floors and belongings, remove the old material, and leave the attic cleaner than we found it.
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(561) 786-1337