AC Repair Services › Duct Sealing Service
Duct Sealing Service in Sioux Falls, SD
Duct sealing closes the gaps and loose connections in your existing duct system that allow conditioned air to escape into attics, crawl spaces, and wall cavities before it reaches your rooms. Most homes lose a meaningful amount of airflow this way, which forces the system to run longer to meet the thermostat setting. We use mastic compound or UL-listed tape at every joint — not the gray cloth tape that dries out and fails within a few years.
Sioux Falls AC Repair Pros provides duct sealing service for homeowners across Sioux Falls, SD. Call for a free inspection and a written quote before any work begins.
When to Call
When You Need Duct Sealing Service
- Your upstairs rooms stay warm even after the AC has been running for an hour
- Your energy bills climbed noticeably without any obvious change in usage habits
- You can feel air blowing inside a wall cavity or near a soffit in your attic
- A blower door test identified duct leakage as the primary efficiency problem
How It Works
Our Process for Duct Sealing Service
- 1
Leak Location
We pressurize the duct system and use airflow meters and visual inspection to identify where leakage is occurring.
- 2
Access and Prep
We access joints in the attic, basement, or crawl space, cleaning surfaces so sealant adheres properly.
- 3
Mastic Application
We apply mastic to every identified joint and seam, embedding mesh tape on gaps wider than a quarter inch.
- 4
Post-Seal Verification
We re-pressurize the system to confirm leakage has dropped and airflow to living spaces has improved.
Sioux Falls Context
Why this matters in Sioux Falls
Sioux Falls homes with attic ductwork lose cooled air directly into spaces that can exceed 140 degrees in July. That air is simply gone, and your system burns more energy making up for it all summer.
Straight Talk
About pricing & scope
The scope depends on how many leaks exist and where they are located. Attic and crawl space access takes more time than open basement work, and that affects the labor involved.
What This Fixes
Problems We See in Sioux Falls
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