Comparing aeroseal duct sealing pittsburgh solutions against traditional hand-applied mastic paste and foil tape helps homeowners choose the most effective method for eliminating duct leakage in finished walls and inaccessible ceiling cavities. Duct leakage accounts for up to 30% of heating and cooling energy loss.
Aeroseal vs. Traditional Mastic Comparison Table
| Feature | Aeroseal Internal Polymer Sealing | Traditional Mastic & Foil Tape |
|---|---|---|
| Access Requirements | Seals hidden ducts inside finished walls without tearing down drywall. | Requires physical hand access to exposed basement or attic metal seams. |
| Leakage Reduction Rate | Reduces total duct leakage by 85% to 95%. | Reduces accessible seam leakage by 40% to 60%. |
| Verification Testing | Includes real-time computer graph showing pre- and post-seal CFM leaks. | Visual inspection only; no computerized CFM verification report. |
How Aeroseal Works From Inside Your Ductwork
Technicians block all supply registers and inject a non-toxic, aerosolized vinyl polymer spray under pressure into the main trunk line. Suspended sealant particles collide with and bond to microscopic edge leaks (up to 5/8 inch wide), sealing leaks automatically.
Schedule a duct pressure leakage test on our Pittsburgh duct cleaning and sealing page.
Homeowners in Mt. Lebanon, Upper St. Clair, and Bethel Park can view regional service info on our South Hills HVAC service hub.
Frequently Asked Questions
Is Aeroseal sealant safe for children and pets?
Yes. Aeroseal uses a water-based, non-toxic polymer material similar to chewing gum ingredients that emits no harmful VOCs or odors.
How long does Aeroseal duct sealant last?
Aeroseal polymer seals are lab tested to withstand continuous air pressures for over 10 years without cracking or shrinking.
