Always Prioritize HVAC Distribution System Leakage

PROJECT PROBONO LLC © 2026

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Why High-Efficiency Equipment Often Under-Delivers
Homeowners are often surprised to learn that factory efficiency ratings assume sealed ductwork.
That 20-SEER heat pump or 95% AFUE furnace only performs as advertised if the air actually reaches the rooms.
According to the U.S. Department of Energy, 20–30% of conditioned air is typically lost through duct leakage in U.S. homes — and in real Lehigh Valley homes, we regularly measure 25–30% leakage, with some systems exceeding 35% before sealing.
Performance Reality
The chart above shows the impact clearly: even a high-efficiency system can perform like mid- or low-efficiency equipment when ducts are leaking.

07:30

How to Seal Leaky Ductwork | Ask This Old House

04:48

This Old House with Kevin O'Connor Features Aeroseal in New Construction Project

PROJECT PROBONO LLC © 2026

877~AIR~TECS (877~247~8327)

www.PROJECTPROBONO.com

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A Gas-Pump Analogy
Imagine pulling up to a gas station.
You pay $1.00, but only $0.70–$0.75 worth of fuel makes it into your tank. The rest leaks out of the hose.
At a gas station, that problem would be fixed immediately — because the waste is obvious.
In homes, duct leakage causes the same financial loss, but homeowners can't see it. They feel it instead:
  • uneven temperatures
  • longer runtimes
  • higher energy bills
  • degraded indoor air quality
Invisible Waste
The waste is hidden — until it's measured.

PROJECT PROBONO LLC © 2026

877~AIR~TECS (877~247~8327)

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Measured Challenges
Substantial Energy Losses
Homes lose 30% to 40% of air through leaks, wasting conditioned air before it reaches occupied spaces and dramatically reducing HVAC system efficiency.
Compromised Indoor Environment
Negative pressure zones draw dust, allergens, and pollutants from unconditioned spaces, degrading indoor air quality and occupant health.
Comfort Distribution Issues
Inconsistent temperatures, poor airflow balance, and system noise create uncomfortable conditions that impact productivity and satisfaction.
Scientific Diagnostics
Advanced Testing, Imaging and Pressure Diagnostics precisely quantify leakage rates, providing verifiable results right after installation with complete documentation.
Advanced diagnostic equipment provides precise measurement of system performance and leakage quantification

PROJECT PROBONO LLC © 2026

877~AIR~TECS (877~247~8327)

www.PROJECTPROBONO.com

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Aeroseal Technology
Patented Inside-Out Sealing
Automated process deploys adhesive particles that locate and seal leaks up to 5/8" wide from within the ductwork, reaching leaks that traditional methods miss, particularly in hidden or inaccessible areas.
Real-Time Performance Validation
Computer-controlled monitoring documents actual leakage reduction in CFM25/CFM50 during the process, providing detailed pre-seal and post-seal duct leakage reports with up to 97% leakage reduction.
Comprehensive Performance Benefits
Beyond energy savings, clients experience balanced temperature distribution, cleaner air delivery, quieter operation, and enhanced indoor environmental quality throughout the facility.

PROJECT PROBONO LLC © 2026

877~AIR~TECS (877~247~8327)

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How Aeroseal Duct Sealing Works

01:18

YouTube

Aeroseal Duct Sealing Animation

Ever wanted to see how a duct sealing is performed in an attic? In this animated video, you can see how the sealing machine is setup and the sealant flows throughout the ducting to seal leaks. . . . . Aeroseal Duct and Aeroseal Envelope (also known as Aerobarrier) are cutting-edge technologies that deal with air loss in buildings using envelope and duct sealing. Envelope sealing technology addresses major risk management controls when constructing a home, including thermal control, airflow con

Watch this informative video to see the revolutionary Aeroseal process in action:
Preparation
We block all vents and connect the delivery system to your ductwork
Application
Tiny polymer nanoparticles are blown throughout the system, naturally finding and adhering to only leak openings
Verification
Computer monitoring shows real-time leakage reduction as seals form, with before/after documentation

The sealant is non-toxic and has been safely used in hospitals, surgery centers, schools, and government facilities all over the world. Additionally, the sealant has been tested by an independent lab and found to have extremely low concentrations of volatile organic compounds (VOC's).

We warranty the seal for 10 years and it has been proven through 3rd party labs to last greater than 40 years with no signs of degradation

PROJECT PROBONO LLC © 2026

877~AIR~TECS (877~247~8327)

www.PROJECTPROBONO.com

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Verified Results, Recognized Nationwide
When completed and documented properly, Aeroseal duct sealing also qualifies for the Inflation Reduction Act §25C Energy Efficient Home Improvement Tax Credit, offering 30% of the project cost, up to $1,200, for eligible homeowners (12-31-2025-11:59:59)
National Recognition
We're proud to partner with Aeroseal.
We're even prouder of the measured results, improved comfort, and homeowner feedback that follow.

Duct air sealing is recognized by the U.S. Department of Energy and ENERGY STAR as one of the highest-impact upgrades for forced-air homes.
As the only BPI-certified Building Analyst Aeroseal technician in the Lehigh Valley, our approach goes beyond sealing ducts alone. We evaluate the entire pressure, airflow, and thermal system so duct improvements actually translate into real comfort and efficiency gains.

PROJECT PROBONO LLC © 2026

877~AIR~TECS (877~247~8327)

www.PROJECTPROBONO.com

[email protected]

Why Testing Matters,
And Why Credentials Matter
Project Probono has tested, certified, and sealed countless homes throughout the Lehigh Valley, and our results closely match national DOE findings.
When leakage is reduced from 25–35% down to 5% or less, delivered efficiency improves immediately:
  • airflow becomes balanced
  • comfort stabilizes
  • equipment runtime drops
  • efficiency finally matches what the system was designed to deliver
All results are measured, verified, and documented — not assumed.
Certified Expertise

PROJECT PROBONO LLC © 2026

877~AIR~TECS (877~247~8327)

[email protected]