Stopping Air Leaks Before They Waste Energy
Duct Repair & Sealing in Myrtle Beach for homes with uneven room temperatures or high cooling costs despite functioning HVAC equipment
Ductwork leaks allow conditioned air to escape into attics, crawlspaces, and wall cavities before reaching living spaces, forcing HVAC systems to run longer to maintain set temperatures and driving up energy costs without improving comfort. Leaks develop at seams, joints, and connections where ducts were poorly sealed during installation or where vibration and temperature cycling have separated sections over time. You'll notice these problems as rooms that never reach the thermostat setting, excessive dust accumulation near vents, or utility bills that climb despite unchanged usage patterns.
SeaSide Heating & Cooling performs air duct inspections to locate leaks, measures airflow at each register to identify imbalances, and seals ductwork using mastic sealant or metal-backed tape rated for HVAC applications. Duct sealing focuses on accessible sections in attics and crawlspaces where leaks most commonly occur, addressing the thirty percent energy loss typical in homes with aging or poorly installed ductwork.
Schedule a duct inspection to measure current airflow efficiency and identify which sections require sealing or structural repair.
What Duct Sealing Prevents Long-Term
Duct sealing involves applying mastic sealant to joints and seams, which cures into a flexible, airtight barrier that accommodates duct movement without cracking. Metal-backed foil tape reinforces connections at trunk line junctions and boot fittings where mechanical stress is highest. Inspections use airflow measurement tools to quantify leakage rates before and after sealing, providing data on efficiency improvements rather than relying on visual assessment alone.
After sealing, rooms that previously struggled to reach comfortable temperatures stabilize faster, runtime decreases noticeably, and dust infiltration from attic spaces diminishes since the duct system no longer pulls unconditioned air through gaps. Airflow balancing adjusts dampers within the duct system to distribute air evenly across all registers, correcting situations where some rooms receive excessive airflow while others remain starved for conditioned air.
Duct repairs address physical damage—crushed sections, disconnected segments, or deteriorated insulation—that restricts airflow or allows unconditioned air to enter the system. Flexible ductwork in attics sometimes sags or compresses, reducing its effective diameter and choking off airflow to specific rooms. Metal ductwork can corrode in coastal environments like Myrtle Beach, developing holes that leak air and compromise system efficiency over time.
Questions About Ductwork Performance and Repairs
Homeowners noticing comfort issues or high energy costs often ask how duct problems develop and what repairs involve before committing to inspections.
What causes ducts to leak if they were sealed during installation?
Building settlement, temperature cycling, and vibration from HVAC operation gradually stress duct joints, while older installations often used cloth-backed duct tape that degrades within years, leaving seams completely open to attic spaces.
How is airflow balancing different from duct sealing?
Balancing adjusts dampers to control how much air reaches each room, correcting uneven distribution, while sealing stops air from escaping the duct system entirely; both address comfort problems but target different inefficiencies.
Can duct leaks cause indoor air quality problems?
Leaks in return ducts pull unfiltered air from attics or crawlspaces into the living space, introducing dust, insulation fibers, and mold spores that bypass the HVAC filter and circulate through the home continuously.
How much energy loss is typical from leaky ductwork?
Studies show duct leakage accounts for twenty to thirty percent of heating and cooling energy in many homes, with older systems or poor installations losing even more, which translates directly to higher utility bills and longer equipment runtime.
Does duct sealing require access to all ductwork?
Sealing focuses on accessible sections in attics and crawlspaces where the majority of leaks occur; ducts concealed in walls or concrete slabs can't be sealed without invasive demolition, but addressing accessible leaks still produces measurable efficiency gains throughout Myrtle Beach homes.
SeaSide Heating & Cooling provides airflow testing and duct inspections to quantify efficiency losses and prioritize repairs based on the severity and accessibility of leaks. Call the office to schedule an inspection and receive a detailed estimate for sealing and balancing work specific to your ductwork configuration.