Ductwork Repair & Sealing in Melbourne, DeLand & The Villages, FL
In most Florida homes the ducts run through an attic that can top 130°F in summer. When those ducts leak, tear or lose insulation, you pay to cool air that never reaches your rooms, and the system pulls in hot, humid attic air. ENERGY STAR estimates that 20–30% of the air moving through a typical duct system is lost to leaks, holes and poor connections. Champion AC & Heating Repair finds and fixes those losses.
Call (321) 603-3802 in Melbourne, (386) 877-0405 in DeLand or (352) 763-8394 in Oxford. We are open 24 hours, and financing is available.
Signs your ducts need repair
- Some rooms are much hotter than others
- High power bills even though the AC is running fine
- Dusty house, or dust lines around vents
- Sweating vents or water stains on the ceiling near a register
- Whistling or rattling in the ducts
- Ducts that are 15–20+ years old, crushed, or disconnected in the attic
Our Services
Ductwork services
- Duct inspection — attic walk-through and airflow checks at each vent.
- Duct sealing — mastic and approved tape at joints, boots and the plenum.
- Repairs — reconnect, re-hang and re-insulate damaged sections.
- Full duct replacement — new, properly sized ductwork, often done along with a new AC or heat pump installation.
- Airflow balancing — adding or resizing runs for hot rooms and additions.
- Return air upgrades — many Florida homes have undersized returns that strain the system.
Repair, seal or replace?
If the ducts are mostly sound, sealing and targeted repairs give the best return. If flex duct is brittle, flattened or full of tears, or if the layout never worked, replacement is usually better than patching. We show you photos from the attic so you can decide.
How we test your ductwork
- Attic inspection of every accessible run, connection and boot
- Airflow readings at each supply vent
- Static pressure tests to spot restricted or undersized ducts
- Duct leakage testing when a precise measurement is needed
What affects ductwork cost
- Sealing and minor repairs vs. full replacement
- Number of supply runs and returns
- Attic access and working space
- Duct material (flex duct, duct board or metal)
- Adding returns or resizing runs for better airflow
Insulation, sealing and Florida code
Ducts in an unconditioned attic must be insulated and sealed. Poorly insulated ducts sweat in Florida humidity, which can stain ceilings and grow mold. We seal joints with mastic or approved tape and install properly insulated duct that meets current Florida Building Code requirements.
Why Florida homeowners choose Champion AC
- 20 years of experience with Florida homes
- Licensed and insured technicians
- All major brands serviced and installed
- Open 24/7, including nights and weekends
- Upfront pricing before any work starts
Ductwork repair pricing, financing and guarantee
You see the price before we start, with no hidden fees. Financing is available for larger repairs and new equipment. Satisfaction guaranteed: we don’t leave until your system is working properly.
Ductwork repair FAQs
How long does ductwork last in Florida?
Flex duct in a hot Florida attic often lasts around 15–20 years, though quality and installation vary a lot. Duct board and metal can last longer if they are sealed and insulated.
Should I replace ducts when I replace my AC?
Not always, but it is the best time to check. A new system connected to leaky, undersized ducts will not deliver its rated efficiency.
Can leaky ducts cause humidity problems?
Yes. Leaky return ducts pull hot, moist attic air into the system, which raises indoor humidity and can cause musty smells.
How long does duct replacement take?
A typical single-story home takes one to two days.
Can bad ductwork cause mold?
Yes. Ducts that leak or sweat add moisture to the attic and ceilings, which can lead to mold growth.
Is flex duct OK to use?
Yes, when it is properly sized, supported and stretched without sharp bends or sags.
Will sealing my ducts make a noticeable difference?
Often, yes. Rooms cool more evenly, the system runs less, and the house usually feels less humid.
Choose your area
We provide ductwork repair & sealing across three service areas. Choose yours for local details, phone numbers and FAQs:
Ready to schedule ductwork repair & sealing?
Call (321) 603-3802 in Melbourne, (386) 877-0405 in DeLand or (352) 763-8394 in Oxford. Use Instant Online Quotation or Schedule a Consultation. We are open 24/7.
