Duct Sealing for Energy Savings in the Triangle

Many Triangle-area homes push conditioned air through ducts that run through hot attics and damp crawlspaces. When those ducts leak, you pay to cool or heat spaces you never occupy, and rooms at the end of long runs stay uncomfortable.

Why NC Homes Leak Conditioned Air

Builder-grade flex duct, aging mastic joints, and crushed runs under floors are common in subdivisions around Clayton, Garner, Holly Springs, and Smithfield. Summer attic temperatures amplify losses; winter crawlspace air dilutes heat before it reaches living spaces.

Signs Your Ducts Need Attention

• Some rooms never catch up to the thermostat setting
• Visible gaps, disconnected joints, or torn flex in the crawlspace or attic
• Excessive dust at supply registers shortly after filter changes
• Higher bills without a change in thermostat habits
• Musty smells when the system starts, possible crawlspace air infiltration

What Proper Sealing Involves

Effective sealing uses mastic and appropriate tapes on joints, not cloth duct tape. Technicians also check for crushed flex, missing insulation, and returns that pull from unconditioned space. In some homes, balancing dampers and register adjustments follow sealing so airflow matches the improved system.

Ask about duct evaluation →