When we stepped into this Mount Pleasant, SC home, the signs were easy to spot once we looked up. Sagging duct runs, torn insulation, and visible moisture damage told a clear story.
The homeowner had been dealing with a high moisture problem for a while, and to make matters worse, rodents had chewed through sections of the flex ductwork. Comfort had dropped, efficiency was slipping, and the system needed attention fast.
As an existing client, they trusted us at Arctic Air Inc. to take a closer look and make it right.
Moisture, Rodents, and Damaged Ducts
Homes in Mount Pleasant deal with heavy humidity most of the year.
When moisture levels stay high, ductwork becomes especially vulnerable. In this case, the flex duct had become waterlogged, causing it to sag and lose its shape. That alone restricts airflow and makes the HVAC system work harder than it should.
Then there was the rodent damage.
We found clear chew marks and openings where animals had eaten straight through the duct jacket and insulation. Those tears allowed conditioned air to escape into the crawl and utility spaces instead of reaching the living areas. They also pulled humid air into the system, compounding the moisture issue already present in the home.
Our Repair Approach
We focused on repairing the damaged flex ductwork to restore proper airflow and reduce moisture exposure. First, we removed sections that were torn and heavily waterlogged. Compromised duct runs rarely recover once insulation is saturated, so replacement was the right call.
Next, we sealed and secured the repaired sections to prevent future air leaks.
Proper support was added to keep the flex duct from sagging again, which helps maintain consistent airflow throughout the system. We also paid close attention to sealing around joints, since even small gaps can pull in humid air in coastal South Carolina conditions.
Throughout the process, we kept the existing layout intact as much as possible. The goal was targeted repairs, not unnecessary changes, so the homeowner could see real improvement without a major disruption.
Results the Homeowner Could Feel
Once the repairs were complete, airflow improved immediately.
The system no longer had to push air through collapsed or leaking duct sections, which helped balance temperatures inside the home. Reducing moisture inside the ductwork also supported better indoor air quality, a big concern in Mount Pleasant, where humidity never takes a season off.
The homeowner was happy with the outcome and summed it up simply: “Good job, guys!” Sometimes that says it all.
Need Flex Duct Repairs in Mount Pleasant, SC?
If your home has high humidity, uneven airflow, or signs of rodent activity, your ductwork could be part of the problem. We help homeowners across Mount Pleasant, SC, repair damaged flex duct and restore comfort fast.
Call us today to schedule a duct inspection or request a repair visit. Taking care of small duct issues now can save you from bigger comfort problems later.







