Air Quality & Controls · Boca Raton, FL
Ductwork Repair & Replacement in Boca Raton
Here's a fact that surprises most Florida homeowners: a typical home with ducts in the attic loses a meaningful share of its cooled air through leaks, disconnected runs, and crushed flex duct — before any of it reaches a room. If some rooms never get cool no matter what the thermostat says, your ducts are a prime suspect.
How ducts fail in Florida attics
Attic air in a Boca Raton summer sits well over 120 degrees, and ducts live their whole lives up there. Flexible duct sags, kinks, and gets crushed by boxes stored on top of it. Tape seams dry out and separate. Rodents find their way in. Original builder ducts from the 1970s–90s are frequently undersized for modern equipment or simply falling apart at the joints.
Every leak up there does double damage: cooled air escapes into the attic, and hot attic air gets drawn into the system. The result is longer runtimes, rooms that never match the thermostat, humidity you can feel, and an FPL bill that pays for air you never feel.
Signs your ducts are the problem
The classic pattern: one or two rooms that are always several degrees off from the rest of the house; a system that runs and runs in mild weather; weak airflow from certain vents; a dusty house despite a fresh filter; or a new high-efficiency AC installed on old ducts that somehow performs worse than expected. That last one is common — a powerful new system on leaky, undersized ducts is like a new engine bolted to a collapsing exhaust.
We inspect the duct system visually and with measurement — airflow at the registers, pressure in the system, and a look at the runs themselves in the attic — then tell you exactly what's worth fixing and what isn't.
Repair or replace?
Isolated problems — a disconnected run, a crushed section, failing seams — are straightforward repairs. But duct systems with widespread age damage, undersized trunks, or badly designed runs usually justify replacement, and the best time to do it is alongside an AC replacement, when the system is open anyway. We'll price both paths honestly, including the option of staging the work if budget requires.
When we replace ducts, we size every run for the room it serves, seal every joint mechanically, insulate to Florida code, and balance airflow so the room that's always been hot finally gets its share.
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Homeowner questions
How much air do leaky ducts actually waste?
In older Florida homes it's common to find a significant share of conditioned air lost to the attic. Even well-built systems loosen over decades. The only way to know yours is an inspection with measurements — which we do during a duct evaluation.
Can duct sealing fix my hot room?
If the room's problem is a leaking or undersized run, yes. If the problem is the run being undersized or poorly routed, sealing alone won't do it — that room needs a proper duct. The inspection tells you which situation you're in.
Should I replace ducts at the same time as the AC?
It's usually the smartest moment. The system is open, the crew is there, and a new high-efficiency unit deserves ducts that can deliver its airflow. Staged over time is possible, but doing them together usually costs less overall.
What's the difference between flex duct and metal duct?
Metal duct holds its shape, resists crushing, and lasts longer; flex duct is cheaper and easier to route but sags and degrades faster — especially in a hot attic. Most Florida homes use a mix, and the quality of installation matters more than the material alone.
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Ready to get your comfort back?
Call, or send the request form with a few details and your address. We'll follow up about next steps.
Or email Estimates@bocahomeservices.com — every request lands in the same inbox.