How Much Does Duct Sealing Cost in Florida?

August 08, 2018

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If you’ve been told you have leaky ducts—and most homes do—you may have heard about duct sealing as a solution.

For starters, let’s answer the big question on your mind: Duct sealing costs anywhere from $1,000 to $3,000+ in Florida.

And if you need to replace your ducts altogether (we’ll explain more below), that costs $5,000 to $8,000 on average in Florida.

The price of duct sealing can vary within that range based on the following cost factors:

  1. The size of your home

  2. Labor considerations

  3. Duct sealing vs duct replacement

In this article, we’ll go into more detail about:

  • The different factors that affect cost

  • How to find a certified duct expert near you

Want a FREE quote for duct sealing in your home?

Duct sealing cost factors

#1: The size of your home

The bigger your home, the more your duct sealing will cost.

See, bigger homes have more vents, which means they also have more ductwork connecting to each of those vents.

Since bigger homes have more ductwork, more labor is needed to check for duct leaks, and often more materials are required to seal (or replace) the ducts.

#2: Labor considerations

The following labor factors could raise the cost of your duct sealing:

  • Hard-to-reach ductwork: If your ductwork is in a hard-to-reach crawl space, it will take longer to complete the job, which raises the cost of the project.

  • Cutting into walls/floors/ceilings to access ductwork: This will raise the cost of your duct sealing project because you’ll have to restore the walls/floors/ceilings. If you have leaky ducts that are hidden behind walls it may be more cost-effective to go with the Aeroseal method.

#3: Duct sealing vs duct replacement

Homeowners in Florida have 2 main options when it comes to fixing leaky ducts:

  1. Sealing ducts

  2. Duct replacement

Sealing ducts (less expensive, but often less effective)

If you can visibly detect leaks or holes in your ductwork, sometimes a tech will use metal tape or mastic sealant to close off the leak.

An illustration of mastic sealant. Image source:

But here’s the thing: Many homes in Florida have ductwork made of flex material or duct board, both of which are difficult to reliably seal using manual sealing methods.

If you have a large amount of leaks in flex ducts or your ducts are constructed with duct board, manual sealing is probably NOT the best method for you.

Duct replacement (more expensive, but often more effective)

Duct replacement is more expensive than manual sealing methods because it involves more material cost and more labor, but it’s also the most effective way to eliminate duct leaks.

So if a tech inspects notices a large amount of leaks in your ductwork, they may recommend replacing those ducts altogether—especially if the ducts are old, poorly designed or undersized to begin with.

How to find a certified Fort Myers duct sealing/replacement professional

Getting your ducts sealed or replaced by a certified professional will help you avoid issues caused by the ameatuer or inexperienced techs.

Problems caused by careless or inexperienced techs include:

  • Harm to your heating/cooling system

  • MORE leaks, holes or disconnected ducts (which leads to more discomfort and higher energy bills)

  • Damage to your home (walls, ceilings, floors, etc.)

So, to avoid all of those costly issues and get the job done right, Energy Star recommends hiring a NATE-certified (North American Technical Excellence) technician to seal or replace your ducts.

Here’s how to find a NATE-certified duct sealing contractor in your area:

  • Visit

  • Go to the tab labeled “Homeowners” at the top

  • Select the option, “Find a Contractor with NATE-Certified Technicians”

  • Input your Fort Myers zip code

  • A list will appear of contractors with NATE-certified technicians in the Fort Myers area

  • Write down or make note of the different contractors

Screenshot taken from the NATE certified contractor search

Once you have a list of contractors with NATE-certified technicians, you’ll want to narrow down your list to the highest-quality contractors.

The best contractors will…

If a contractor matches those requirements, contact them to get a quote for your duct sealing/replacement project.

Need your ducts sealed or replaced by a certified Fort Myers pro?

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