Air Conditioning Duct Replacement by Comfort Zone of North Florida
Is your home struggling to stay cool or experiencing uneven temperatures? Damaged ductwork may be the issue, preventing your HVAC system from effectively delivering air where you need it. At Comfort Zone of North Florida, our licensed heating and air conditioning technicians specialize in expert ductwork replacement and repair, ensuring your home stays comfortable.
Ductwork repairs run $350 to $1,400, depending on how much of the system needs work.
Full duct replacement for the whole home starts at $5,400. Partial duct repairs are priced separately, after we look at the system.
Duct Repair, Sealing, or Replacement: Which One Do You Need?
Not every duct issue calls for the same job. The right fix depends on what is wrong with the ducts, how much of the system is affected, and whether the ducts can still do their job well. Here is how to tell the three jobs apart.
Duct repair: fixes leaks, disconnected runs, and crushed runs. You may be looking at repair if only part of the system is damaged, if one room is hard to heat or cool, or if air is escaping at a joint or a damaged section. Repair keeps the ducts you already have and fixes the weak spots.
Duct sealing:Â seals joints and leaks to stop air loss. It is the right step when the ducts are in sound shape overall but conditioned air is escaping through gaps and joints, so rooms feel uneven and the system runs longer than it should. Sealing helps the air you heat or cool reach the rooms it was meant for, instead of leaking into the attic or crawl space.
Duct replacement: is the right choice when age, damage, or mold make repair the wrong investment. If ducts are old, widely damaged, sagging, or affected by mold, patching one section at a time can leave the same issues in place. Replacement gives you a new, properly sized and sealed system.
What happens on the $99 diagnostic visit: A NATE-certified and EPA-certified technician will inspect the ductwork, look for leaks, disconnected or crushed runs, and signs of age or mold, and check airflow and comfort room by room. You will get the price in writing with photos before work starts, so you can see what was found and decide with clear information. Our technicians are paid hourly with no commission, and we are open 24/7 at (904) 406-0070.
Ductwork repairs run $350 to $1,400. Full duct replacement starts at $5,400.
If the ducts are dirty inside but are otherwise sound, duct cleaning is a separate service from repair, sealing, or replacement. Learn more about duct cleaning.


Why Choose Duct Replacement?
Ductwork, like any system in your home, has a limited lifespan. Typically, ducts last about 20–25 years, but as they age, they start to deteriorate, leading to reduced efficiency and potentially increasing your utility bills. If your residential building is over 15 years old, it may be time to consider duct replacement or repair. Our team provides a free inspection to evaluate your current ductwork’s condition, recommending repairs or replacements as necessary.
How Do I Know If It’s Time to Replace My Ductwork?
Your ductwork plays a crucial role in maintaining indoor air quality and distributing air efficiently. However, when ducts become damaged, leaky, or outdated, cleaning or basic maintenance may not be enough. Here are some signs that it might be time to replace your air ducts:
Visible issues, like rust or corrosion, dust streaks at duct seams, or reduced airflow, can also indicate duct damage. If you spot any of these issues, it’s time to have our professionals assess your ducts.
Benefits of Professional Duct Replacement
Professional ductwork installation is essential for an efficient heating and air conditioning system. Our technicians at Comfort Zone of North Florida are highly trained to ensure seamless integration of air ducts within your home, from where they connect with your living space to the air handler. We carefully size your ducts to maximize efficiency, which improves indoor air quality, saves on energy costs, and enhances comfort throughout your home.
Contact Us Today for Your Free Ductwork Inspection
Don’t let damaged ducts compromise your comfort. Call Comfort Zone of North Florida, your trusted air conditioning company serving Jacksonville, Yulee, Fernandina, and Callahan, to schedule a free ductwork inspection and see whether duct repair or replacement is the best solution for your home or business.
