Leaky, disconnected or undersized ductwork can leave rooms uncomfortable even when the AC system is running. Elsmar Air Conditioning inspects, repairs and replaces ductwork in Broward County and takes requests in parts of Palm Beach and Miami-Dade counties. Call with your address and system details to confirm service availability; the recommended scope and price depend on the inspection.

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. Leaks or disconnected sections can let conditioned air escape before it reaches the room and may contribute to longer AC runtimes. An inspection can identify accessible defects and help determine whether sealing, repair or replacement makes sense; comfort and energy effects vary by system and building.
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 assessment and balancing where the system allows
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?
Repair may be appropriate for isolated leaks or damaged sections. Replacement may be worth discussing when ducts are extensively damaged, poorly sized or deteriorated. An inspection helps determine which option fits the system.
How much does duct sealing cost?
Cost depends on the duct condition, the work needed and access to the affected sections. After an inspection, we can explain the recommended scope and provide a quote before work begins.
Will duct repair actually lower my energy bill?
Sealing confirmed leaks can reduce conditioned-air loss. Any change in energy use depends on leak severity, system operation, duct location and other conditions, so a lower bill cannot be guaranteed.
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?
Leaky or undersized ducts may affect airflow and system runtime. A technician can assess the ductwork and AC system before recommending repairs; the effect on equipment life depends on the specific conditions.
Call 954-309-4575 during our Monday–Saturday, 8 a.m.–5 p.m. staffed hours to discuss a duct inspection, or use the scheduling link above.
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?
Timing depends on the number and location of defects, the repair scope, access and the property’s layout. We can estimate the schedule after inspecting the ductwork.
Do you work in older homes with original ductwork?
Yes. Many homes across Broward, Palm Beach, and Miami-Dade counties still have original ductwork from decades ago that’s undersized or deteriorating. We evaluate what’s actually there before recommending repair or replacement.
Current and former nurses, teachers, firefighters, police officers and military members can read the Hero Program terms, including one free AC maintenance visit per year, priority scheduling during staffed hours and 15% off services.
