Ductwork Repair & Replacement in South Florida
A perfectly good AC system can still leave your home uncomfortable and your bills high if the ductwork carrying that cooled air is leaking, disconnected, or undersized. Elsmar Air Conditioning inspects, repairs, and replaces ductwork across Broward, Miami-Dade, and Palm Beach counties, with flat-rate pricing you approve before any work begins.
Signs Your Ductwork Needs Attention
- Some rooms are noticeably warmer or cooler than others
- Your energy bills are high even though the AC unit itself is running fine
- You notice a whistling or rattling sound from vents
- Visible gaps, holes, or disconnected sections in accessible ductwork
- Excessive dust coming from the vents
- Rooms take a long time to reach the thermostat’s set temperature
Why Ductwork Condition Matters So Much in Florida
Many South Florida homes have ductwork running through hot attics, where even small leaks let cooled air escape before it ever reaches your living space, forcing your system to run longer to compensate. Duct leaks are one of the most common reasons a home’s energy bill climbs even when the AC unit itself is working exactly as it should. Sealing and repairing ducts is often one of the most cost-effective improvements you can make to your system’s efficiency.
Our Ductwork Services
- Duct leak detection and sealing
- Duct repair and reinforcement
- Full duct system replacement
- Resizing ductwork for a new or replacement AC system
- Insulation to reduce heat gain in attic runs
- Airflow balancing so every room cools evenly
Frequently Asked Questions
How do I know if I have a duct leak?
Uneven cooling between rooms, higher than expected energy bills, and dusty air are the most common signs. Our technicians can inspect accessible ductwork and test for leaks during a service visit.
Is duct repair or full replacement usually needed?
Most issues can be repaired and sealed without a full replacement. Replacement typically only makes sense when ductwork is very old, undersized for a new system, or extensively damaged.
How much does duct sealing cost?
It depends on the extent of the leaks and how accessible your ductwork is. We’ll inspect first and give you a flat-rate price before any work begins.
Will duct repair actually lower my energy bill?
In most homes with real leaks, yes. Sealing ducts stops conditioned air from escaping into your attic before it ever reaches your living space, which is one of the more cost-effective efficiency improvements available.
Licensed and Locally Owned
Elsmar Air Conditioning is a State Certified Class “A” Air Conditioning Contractor, fully licensed and insured. We’re a family-owned company based in South Florida, not a national chain, so the technician inspecting your ductwork today is backed by a company that will still be here for your next service call.
Ductwork Service Near You
- Ductwork service in Margate
- Ductwork service in Broward County
- Ductwork service in Miami-Dade County
- Ductwork service in Palm Beach County

Do you offer duct cleaning too?
Our focus is on the structural health of your ductwork, sealing leaks, repairing damage, and correcting sizing, since that’s what actually affects your comfort and energy bills. Ask us during your inspection and we’ll let you know what your system needs.
Can bad ductwork shorten the life of my AC system?
Yes. When ducts are leaking or undersized, your AC system has to run longer and work harder to reach the same temperature, which adds wear to the compressor and other components over time. Fixing the ducts protects the investment you’ve already made in your AC unit.
Call 954-309-4575 to schedule a duct inspection, or request a free estimate below.
Is duct repair covered when I get a new AC system installed?
We check duct condition as part of every installation, but repair or replacement of the ducts themselves is quoted separately based on what your system actually needs. See our AC installation page for more on how the two connect.
How long does duct sealing or replacement take?
Sealing a few leaks is often finished in a few hours. A full duct system replacement typically takes a full day, depending on your home’s layout and attic access. We’ll give you a clear timeline before starting.
Do you work in older homes with original ductwork?
Yes. Many homes across Broward, Miami-Dade, and Palm Beach counties still have original ductwork from decades ago that’s undersized or deteriorating. We evaluate what’s actually there before recommending repair or replacement.
If you’re a first responder or educator, ask about our Hero Program, which includes a free maintenance membership on top of any duct work we do.
