Aeroseal

Aeroseal Duct Sealing Services

Leaky ducts are one of the biggest hidden energy drains in homes and commercial buildings. On
average, 30–40% of conditioned air escapes through duct leakage, wasting money, reducing
comfort, and putting unnecessary strain on HVAC systems.

At Provision Environmental Systems & Testing, we provide Aeroseal Duct Sealing—a
patented, cutting-edge solution that seals ductwork from the inside out. This process requires no demolition, no messy renovations, and delivers long-lasting results.

Why Choose Aeroseal?

Unmatched Effectiveness – Traditional duct tape, foil tape, and mastic can only seal 5–10% of exposed duct leakage. Aeroseal seals up to 99%, even behind walls or ceilings.
Immediate Comfort – Eliminate hot and cold spots for consistent airflow. Most homeowners notice improvements the same day.
Energy Savings – Reduce wasted air and cut heating and cooling costs by up to 30%. Most clients see measurable savings within the first year as seasonal bills are compared.
Healthier Indoor Air – Keep dust, allergens, and contaminants from entering your duct system.
Proven Longevity – Backed by a 10-year residential guarantee, with a proven product life of up to 40 years.

Fast and Non-Invasive Process

Residential Projects – Typically completed in 4–8 hours, with minimal disruption.
Commercial Projects – Customized for each building’s leakage levels and ventilation needs.

The Aeroseal system uses a UL-tested, water-based sealant that is safe, clean, and
environmentally responsible. Only a minimal amount (1–2 ounces) remains in the ducts after the process is complete.

Step-by-Step Aeroseal Sealing Process

System Preparation

All room, ceiling, or floor registers are replaced with foam plugs.
A small access hole is cut into the supply or return plenum, and a temporary collar is attached.
The indoor coil, fan, and furnace are temporarily blocked with foam plugs to prevent sealing particles from entering the equipment.

Injection Setup

Once sealed, the patented Aeroseal injection machine is connected to the duct system using a flexible plastic tube.
The Aeroseal system injects microscopic adhesive particles into the ductwork. These particles travel through the system, seeking holes and cracks.
As they pass through leaks, the particles adhere to the edges, effectively closing gaps without coating the inside of the ductwork.

Computer-Verified 6-Step Sealing Process

Registers are sealed so air only escapes through leaks.
Safe, water-based sealant is injected for about one hour.
Aerosol particles remain suspended by continuous airflow.
As air escapes, particles collide with and adhere to leak edges.
Ducts are sealed using only minimal sealant material.
A computer-generated report verifies leakage reduction and proves the success of the process.

Post-Sealing Verification & Certification

Once the Aeroseal duct sealing is complete, the technician conducts a final measurement of duct system leakage to confirm results.

A Sealing Certificate is generated by computer, showing leakage amounts before and after sealing, a graph of the sealing process, and overall heating or cooling capacity improvement.
A Tightness Certification is affixed directly to your duct system, confirming the tightness level achieved after sealing.

With these certifications, you’ll have documented proof of the improvements made. On average,
Aeroseal reduces duct leakage by up to 99%, saving a typical homeowner up to $600 annually in
energy costs and reducing a typical building’s HVAC energy use by up to 30%.

Air Duct Diagnostics

Before sealing, our process begins with a comprehensive duct system diagnostic. A certified
technician inspects and evaluates your central ductwork, identifying areas of concern and
recommending solutions to maximize savings, improve comfort, and correct airflow or
ventilation problems.

During inspections, we consider:

Construction practices and type of ductwork.
Age of the home or building.
Hot, cold, or stuffy rooms.
Indoor Air Quality (IAQ) issues.
High or rising energy bills.

Our trained and certified technicians use computer-based tools and reports to measure duct
leakage, assess register airflows, and provide accurate data-driven results.

We Check:

The amount and percentage of air leaking from ductwork.
Inconsistent temperature variations throughout the home or building.
Airflow levels for each room.
Manual repair needs of the duct system.

Benefits of Duct Sealing

Aeroseal provides proven solutions for:

Uneven temperatures resulting in hot and cold rooms in residential homes.
Airflow and air balance issues in residential and commercial buildings.
High energy bills.
Excessive humidity and dust.
Musty odors, fume smells, and other ventilation problems.

Results You Can Expect:

Up to 99% reduction in duct leakage.
$600/year savings for a typical homeowner and up to 30% HVAC energy savings for a typical building.
30–40% increase in airflow from registers.
Fewer hot/cold spots and improved comfort throughout the building.
Significant reduction in dust and airborne pollutants.
Energy bills reduced by up to 30%*.
Extended lifetime of heating and cooling equipment.
Cleaner, healthier airflow throughout your space.

*Depends on individual usage and consumption. Thirty percent is a yearly average reported by clients.

Where Aeroseal Makes the Biggest Impact

Commercial Buildings – Offices, schools, government facilities, and labs with high energy demands.
Healthcare Facilities – Hospitals and clinics where air pressurization and infection
control are critical.
Residential Homes – Homeowners benefit from lower bills, improved comfort, and
better indoor air quality.
Retrofit & Renovation Projects – Ideal for older buildings where replacing ductwork
would be expensive or impractical.

Guaranteed Results

Every project is completed with a Certificate of Completion, giving you proof that your system is
sealed, efficient, and performing at its best.

At Provision Environmental Systems & Testing, we combine advanced technology with expert
diagnostics to deliver energy savings, improved comfort, and healthier indoor air—all without
the mess of traditional duct repairs.

The Provision Advantage

While Aeroseal is a powerful technology on its own, it delivers maximum value when combined
with expert Testing, Adjusting, and Balancing (TAB).

At Provision Environmental Systems & Testing, our NBC-Certified TAB Professionals:

Verify system performance before and after sealing.
Ensure airflow is not just sealed but also balanced and optimized.
Provide a complete TAB report plus Aeroseal certification, giving owners confidence in both compliance and performance.
Work seamlessly with engineers, contractors, and facility managers to ensure the system operates at its full potential.

Air Duct Sealing FAQs

Can Aeroseal fix my hot or cold rooms?

Yes. By sealing your ductwork with Aeroseal technology, conditioned air is delivered where it is
designed to go—into your living spaces, not your basement, attic, or crawl space. This helps eliminate hot or cold spots in rooms and between floors.

Can Aeroseal reduce the amount of dust in my home?

Absolutely. Many ducts run through attics, crawlspaces, basements, garages, and walls. Leaking
return ducts pull in dust, dirt, and other pollutants and circulate them through your HVAC system. Aeroseal can reduce leakage by up to 90%, meaning significantly less dust and cleaner
air inside your home.

How much will Aeroseal save me in energy costs?

Government studies have shown that duct sealing can save homeowners up to $850 per year in
energy costs, with some seeing as much as 40% savings on utility bills. Actual savings depend
on factors such as weather, system design, duct condition, and energy prices, but nearly every
customer sees a measurable reduction.

What does an Air Duct Diagnostic and Inspection reveal?

Our diagnostics provide a clear picture of your duct system’s performance. A certified technician measures the exact amount of air leakage in your system and identifies problem areas. Many homeowners are surprised to learn their ducts leak 30–40% of conditioned air. This inspection provides a scientific, data-driven baseline to help you understand where efficiency and comfort are being lost.

How long does Aeroseal last?

Aeroseal is guaranteed for 10 years in residential applications and has been stress-tested for a
lifespan of up to 40 years.

Will my home smell after Aeroseal?

During the sealing process, there may be a mild odor similar to Elmer’s Glue. This smell is
harmless and typically dissipates before the next morning.

Is the Aeroseal sealant safe?

Yes. The sealant is non-toxic and has been safely used in hospitals, surgery centers, and
government buildings. It meets strict UL safety standards:

UL 1381 for aerosol-based technology
UL 723 for smoke and flame (rated 0)
UL 181 for mold resistance

The primary ingredient is Vinyl Acetate Polymer, a common component found in water-based
paints, hairspray, and even chewing gum.

What VOCs are emitted by Aeroseal?

Independent lab tests show the sealant produces extremely low VOC emissions during
application. The primary component has no OSHA maximum exposure limit.

Should I be in the home during sealing?

We recommend minimizing occupancy during sealing for safety and productivity. If you are
pregnant, a senior, an infant, or using medical equipment, we encourage leaving during the
application as a precaution.

How big of a leak can Aeroseal seal?

Aeroseal can seal leaks as large as 5/8 inch in diameter.

What about leaks that are too big?

If a duct is broken, disconnected, or has a very large gap, it must be repaired before Aeroseal can be applied. If our technicians uncover such a leak during the process, sealing is paused and repair options are discussed.

Does Aeroseal harm electronics or HVAC equipment?

No. Our certified technicians take precautions to protect your HVAC system and any accessories,
such as humidifiers or UV lights. Sensitive electronics should be covered as a precaution, but
Aeroseal will not damage them.

Do ducts need to be cleaned before sealing?

If your ducts are extremely dirty, we recommend cleaning them prior to sealing. Our technician
will assess your duct condition before starting the process.

Can sealed ducts still be cleaned?

Yes. Ducts of all material types can be successfully cleaned after being sealed with Aeroseal.

Will Aeroseal coat the inside of my ducts?

No. Aeroseal does not line or coat the ductwork. The sealant only adheres at the exact points of
leaks, leaving the rest of your ducts untouched.

FAQ