Dust and Allergies in Your Home

Pollen, dust mites, mold, animal dander and other contaminates are common allergy triggers.  There is not much you can do about pollen or dust outside of your home but when you’re indoors nothing is worse than having that month long runny nose during the fall or mold allergies in the spring.

When you have leaky ductwork in your home you can expect with 100% certainty that these common contaminates are in there with you.


Dust and allergies in your home may be caused by Duct Leaks

Do you notice substantial dust in your home?

Ductwork is typically run through attics, crawlspaces, basements or even behind walls.  When you have leaks in your ductwork, they will suck air from these spaces into your living areas.

By sealing your ductwork you can limit the entrance points of your home that allow dust, pollen, or mold into your home and insure a much cleaner & healthier environment.

Homeowners who seal their ductwork with Aeroseal experience less dust and allergies in their homes!

Aeroseal Helps Solve Your Indoor Allergy Problems

Take a couple seconds to watch how Aeroseal fixes duct leaks!


Source: Aeroseal

Aspen Air Duct Cleaning is an approved Aeroseal Dealer, licensed and ensured, and a member of the National Air Duct Cleaners Association (NADCA), the National Organization of Remediators and Mold Inspectors (NORMI), and the Institute of Inspection Cleaning and Restoration Certification (IICRC).

Please contact Aspen Air Duct Cleaning at 1-800-931-6653 for an Air Duct System Inspection and to learn more about how sealing air duct leaks can improve indoor air quality and reduce energy costs. Or email info@aspenenvironmentalservices.com.

HVAC Innovations: Duct Sealing From the Inside

With winter fast approaching, it’s time to think about saving energy and money for your home or business—leaky ducts can amass a huge cost. A new technology called Aeroseal is the solution that seals ducts from the inside—a fast, low-cost way to make your home or business energy-efficient and start saving money immediately.

HVAC Innovations: Duct Sealing From the Inside

According to EPA, the US Department of Energy (DOE), ASHRAE, and various industry reports, having leaky air ducts is one of the leading causes of energy waste in US buildings, says Neal Walsh, Aeroseal’s senior vice president of strategy and commercial sales.

In an example of HVAC Innovations, a 23-story high-rise apartment building in New Jersey derived $34,000 in annual energy savings after property managers utilized the duct-sealing Aeroseal technology in exhaust shafts and replaced dampers. The facility also is saving several thousands of dollars more each year through increased heating efficiencies.

On average, US building duct systems lose 30% of heated or cooled air through these leaks. Leaks not only prevent treated air from reaching its intended destination but, when related to ventilation systems, they substantially increase energy usage when fans are turned up to compensate for inefficient building exhaust.

Dr. Mark Modera, a former US DOE researcher and developer of Aeroseal technology, says 80% of US buildings have ducts that leak 20–40% or more, resulting in building code violations, indoor air quality health risks, and wasted energy.

Aeroseal, developed at Lawrence Berkeley National Laboratory in concert with the US DOE, EPA, and local utility companies’ sponsorship, is “a computerized process of applying an aerosol mist of sealant to the inside of the ducts where it locates and seals all the leaks,” says Walsh.

The product is designed to meet tight standards for duct leakage in new building construction and repair leaks in ducts and ventilation shafts of existing buildings, he adds.

Aeroseal is designed to be 95% effective, with studies finding it to be as much as 60% more effective than manual sealing, and labor and repair costs reduced by 30%, says Walsh.

Aeroseal equipment is typically attached to ductwork via a long flexible tube that extends from the equipment to the ducts. “In buildings, the duct connection is usually made at points found on the rooftop—as with ventilation shafts—or via a temporary hole made in the side of the duct itself,” says Walsh.

During the setup process, all of the vents serviced by the ductwork are temporarily closed so that any air being pushed into the ducts can only escape through leaks. The Aeroseal service technician uses computerized equipment to measure the exact amount of leakage before the sealing process begins.

When ready, the equipment is then used to send an aerosol mist of microscopic sealing particles into the interior of the ductwork. The computer monitor provides details of the leakage rate as holes are being filled. At the end of each sealing event, users can generate a computerized report providing accurate account of the pre- and post-seal leakage rate, says Walsh. 

Source: Aeroseal and Forester Daily News; first appeared in Business Energy.

Aspen Air Duct Cleaning is an approved Aeroseal Dealer, licensed and ensured, and a member of the National Air Duct Cleaners Association (NADCA) and National Organization of Remediators and Mold Inspectors (NORMI).

Please contact Aspen Air Duct Cleaning at 1-800-931-6653 for an Air Duct System Inspection and to learn more about how sealing air duct leaks can improve indoor air quality and reduce energy costs. Or email info@aspenenvironmentalservices.com.

Holiday Safety Tips

Because we at Aspen Air Duct Cleaning care about our customers, we’d like to say Happy Thanksgiving and share this list of holiday safety tips provided by the National Safety Council.

Holiday Safety Tips

Decorating Safety ™

 Never use lighted candles near trees, boughs, curtains/drapes, or with any potentially flammable item. 

 Wear gloves while decorating with spun glass “angel hair.” It can irritate your eyes and skin. A common substitute is non-flammable cotton. 

 When spraying artificial snow on windows or other surfaces, be sure to follow directions carefully. These sprays can irritate your lungs if you inhale them. 

Small children may think that holiday plants look good enough to eat, but many plants may be poisonous or can cause severe stomach problems. Plants to watch out for include: mistletoe, holly berries, Jerusalem cherry and amaryllis. Keep all of these plants out of children’s reach. 

 When displaying a tree, cut off about two inches off the trunk and put the tree in a sturdy, water-holding stand. Keep the stand filled with water so the tree does not dry out quickly. 

 Stand your tree away from fireplaces, radiators and other heat sources. Make sure the tree does not block foot traffic or doorways. 

 Avoid placing breakable tree ornaments or ones with small, detachable parts on lower branches where small children or pets can reach them. 

 If you use an artificial tree, choose one that is tested and labeled as fire resistant. Artificial trees with built-in electrical systems should have the Underwriters Laboratory (UL) label. 

 Only use indoor lights indoors (and outdoor lights only outdoors). Look for the UL label. Check lights for broken or cracked sockets, frayed or bare wires, and loose connections. Replace or repair any damaged light sets. 

 Use no more than three light sets on any one extension cord. Extension cords should be placed against the wall to avoid tripping hazards, but do not run cords under rugs, around furniture legs or across doorways. 

 Turn off all lights on trees and decorations when you go to bed or leave the house. Unplug extension cords when not in use. 

 If using a natural tree, make sure it is well watered to avoid dry branches from catching fire from the heat of light bulbs.  When displaying outdoor lights, fasten them firmly to a secure support with insulated staples or hooks to avoid wind damage. Never nail, tack or stress wiring when hanging lights and keep plugs off the ground away from puddles and snow.

Ladder Safety ™

 When putting up holiday decorations, always use the proper step stool or ladder to reach high places. Don’t stand on chairs, desks or other furniture. 

 If you have to use a step ladder near a doorway, lock or barricade the door and post signs so no one will open it and knock you off the ladder. 

 A straight or extension ladder should be placed one foot away from the surface it rests against for every four feet of ladder height. 

 When you climb, always face the ladder and grip the rungs to climb – not the side rails. Always keep three points of contact on the ladder whether two hands and one foot, or two feet and one hand. 

 When climbing, keep your hips between the side rails and do not lean too far or overreach. Reposition the ladder closer to the work instead. 

 Use ladders with slip-resistant feet and wear clean, dry and slip-resistant shoes when climbing a ladder. 

 When using ladders outdoors, get down immediately if high winds, rain, snow or other inclement weather begins. Winds can blow you off the ladder and rain or snow can make both the rungs and the ground slippery.

Hosting and Food Safety ™

 When preparing a holiday meal for friends and family be sure to wash hands, utensils, sink, and anything else that has come in contact with raw poultry. Keep in mind that a stuffed bird takes longer to cook. 

 Never defrost food at room temperature. Thaw it in the refrigerator, in cold water or in the microwave. 

 While doing holiday cooking, keep your knives sharp. Most knife injuries occur due to dull blades. 

 Use a clean food thermometer to cook foods to a safe internal temperature before serving. 

 Avoid cleaning kitchen surfaces with wet dishcloths or sponges. They easily harbor bacteria and promote bacteria growth. Use clean paper towels instead.  When reheating leftovers, bring the temperature up to at least 165°F to eliminate any bacterial growth. 

 Refrigerate or freeze leftovers in covered shallow containers (less than two inches deep) within two hours after cooking. Date the leftovers for future use. • Being a smart party host or guest should include being sensible about alcoholic drinks. More than half of all traffic fatalities are alcohol-related. Use designated drivers, people who do not drink, to drive other guests home after a holiday party. 

 The holiday season is one of the most stressful times of the year. You can’t avoid stress completely, but you can give yourself some relief. Allow enough time to shop for gifts and meal items rather than hurry through stores and parking lots. Only plan to do a reasonable number of errands.

Winter Vehicle Preparation ™

 Prepare your car for the winter by checking items such as the brakes, spark plugs, battery, and tires. Check your owner’s manual for the recommended interval for a tune-up. ™

 Be prepared for emergency situations on the road by having a winter “survival kit” in the vehicle including items such as, a working flashlight, extra batteries, reflective triangles, compass, first aid kit, exterior windshield cleaner, ice scraper, snow brush, wooden stick matches in a waterproof container, and non-perishable, high energy foods like unsalted canned nuts, dried fruits, and hard candy.

Source: The National Safety Council

Aspen Air Duct Cleaning is an approved Aeroseal Dealer, licensed and ensured, and a member of the National Air Duct Cleaners Association (NADCA) and National Organization of Remediators and Mold Inspectors (NORMI).

Please contact Aspen Air Duct Cleaning at 1-800-931-6653 for an Air Duct System Inspection and to learn more about how sealing air duct leaks can improve indoor air quality and reduce energy costs. Or email info@aspenenvironmentalservices.com.




Attention: Builders and Contractors Announcing a Brand New Envelope Sealing Technology!

• MEET the most aggressive air leakage standards
• MEET passive house air tightness standards
• ACHIEVE air tightness requirements in less time and without costly delays
• ELIMINATE noise and odor complaints by simultaneously sealing exterior and interior walls
MEET MORE STRINGENT IECC CODE REQUIREMENTS that are forcing builders to change the way they build their homes—comply with ASTM E2357, ASTM E2178, and NFPA 285.

What Is Aerobarrier?
Building upon proven technology invented by the U.S. Department of Energy (DOE) over 20 years ago, AeroBarrier is a cutting edge aerosol envelope sealing system that simultaneously measures and seals building
envelope air leaks.

See How It Works:

                                     It’s Envelope Sealing Made Easy!

Aerobarrier is a cutting-edge technology that takes the guesswork out of sealing the building envelope. Our goal was to provide a more cost-effective way to meet the most aggressive air tightness standards compared to standard, manual sealing methods

“The AeroBarrier process has the potential to be more effective and convenient than conventional sealing methods because it requires less time and effort, and it can seal a larger portion of a leakage area more quickly.”

AeroBarrier simultaneously measures and seals the building envelope with guaranteed results. Whether you need to meet the latest IECC code or passive house requirements, from new construction to gut renovations in single and multi-family spaces, the technology works.

• MEET any air leakage requirement without changing the way the house is built.
• SEAL an entire house in half a day to whatever tightness is required?
• USE the same process for both multi and single-family construction.
• PROVIDE more energy efficient homes to all your customers.

About Aspen:
Aspen professionals are licensed and insured and members of the National Organization of Remediators and Mold Inspectors (NORMI), the National Air Duct Cleaners Association (NADCA), and the Institute of Inspection Cleaning and Restoration Certification (IICRC), and we are an approved Aerosea/Aerobarrier Dealer.

Please contact Aspen Environmental Services for professional mold testing and removal, and water damage restoration at (978) 681-5023.

Please contact Aspen Air Duct Cleaning at 1-800-931-6653 for an Air Duct System Inspection, and to learn more about Aeroseal air duct sealing and Aerobarrier envelope sealing technology.


Five Things Smart Buildings Have in Common


More and more “smart” commercial buildings are being built these days. And, no, we don’t mean Ivy League smart. The term “smart building” instead refers to network-enabled building management systems that help automate building operations, with the goal of saving energy and $$.

A recent article in Forbes stated recently, “These technologies, once considered revolutionary, are steadily becoming the norm in today’s premier office buildings.” The site listed five specific examples of web-enabled smart building features that can make a big impact on an office environment:

  • Optimized HVAC systems
  • Managed electricity reductions
  • Maximized building security
  • Smart sensors for lighting
  • Controlled appliances from remote locations


Optimized HVAC is listed first, as well it should be. Heating, ventilation and air conditioning (HVAC) has the most impact on building performance, comfort and energy efficiency.  A recent case study in Facility Executive magazine on HVAC optimization described how to use advanced software to control factors such as “water flows, pump speeds and fan speeds while maintaining set temperatures.” In fact, for many buildings, manually heating and cooling individual offices can account for over one-third of a building’s entire water consumption.

In the example showcased, a 220,000-square-foot office building operating around the clock used 2,200 tons of cooling power. When it switched to a network-based HVAC system that automatically calculated the best ways to heat, cool and ventilate based on the time of day, the building saved 364,921 gallons of water per year.

Duct Leakage Can Impact Optimization

But beware… HVAC systems (smart or otherwise) are only as good as the ductwork supplying them. Leaky ductwork can thwart even the smartest, high-efficiency systems, and cause excessive energy waste. In fact one of the smartest universities around, Harvard, found this to be true when it installed a brand new 8,500 CFM air handling unit to supply heating and AC to its Girguis Lab, one of the most famed buildings on campus.

When the HVAC unit was brought online, its fan was operating at around 97% of capacity with little effect. It was determined that leaks in the ductwork were reducing static pressure to such a degree that air couldn’t reach its destinations. With ducts hidden under insulation and behind layers of pipes, fixing those leaks seemed an impossible task.

Fortunately, the mechanical contractors on the job had heard about Aeroseal duct sealing from the inside. Local Boston Aeroseal expert Aspen Air Duct Cleaning was called in and just a matter of days, the problem was fixed. Leakage was reduced from more than 5,800 CFM down to 429 CFM –  a 98% reduction. The fan now operated at only 37% of capacity. The system was quieter, and university engineers were relieved. Now, that’s smart!

Click here to read the full Harvard case study:


Source: Aeroseal

Aspen Air Duct Cleaning is an approved Aeroseal Dealer, licensed and ensured, and a member of the National Air Duct Cleaners Association (NADCA) and National Organization of Remediators and Mold Inspectors (NORMI).

Please contact Aspen Air Duct Cleaning at 1-800-931-6653 for an Air Duct System Inspection and to learn more about how sealing air duct leaks can improve indoor air quality and reduce energy costs. Or email info@aspenenvironmentalservices.com.

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Benefits of HVAC System Cleaning for Commercial Properties

air ducts 1

Why should you have your HVAC system cleaned? The short answer is simple: because they get dirty over time and they have the potential to contain large amounts of dust and particulates.

Energy Savings

According to the U.S. Department of Energy, 25 to 40 percent of the energy used for heating or cooling is wasted. Contaminants in the heating and cooling system cause it to work harder and shorten the life of your system. Although filters are used, the heating and cooling system still gets dirty through normal use. When an HVAC system is clean, it doesn’t have to work as hard to maintain the temperature you desire. As a result, less energy is used, leading to improved cost-effectiveness. 

Indoor Air Quality

Indoor air quality is one concern that building managers and building inhabitants have when they decide to investigate HVAC system. Through normal occupation in a building, we generate a great deal of contaminants and air pollutants, such as dander, dust, and chemicals. These contaminants are pulled into the HVAC system and re-circulated 5 to 7 times per day, on average. Over time, this re-circulation causes a build-up of contaminants in the ductwork.

While a contaminated HVAC system doesn’t necessarily mean unhealthy air, the situation may be contributing to larger health issues or harboring contaminants that could cause serious problems for people with respiratory health conditions, autoimmune disorders or some environmental allergies.

Benefits of HVAC Inspection

HVAC inspectors conduct comprehensive examinations of components and systems to determine whether they are contaminated with a significant accumulation of particulate or microbial growth, or if HVAC performance is compromised due to contamination build-up.

The role of an HVAC inspector is to assess the cleanliness and structural integrity of an HVAC system. Inspectors search for obstructions, excess moisture and microbial contamination in the HVAC system.

NADCA offers a certification geared toward HVAC inspectors, called the Certified Ventilation Inspector (CVI) program. CVI-certified personnel have received training based on the EPA’s structured method of performing inspections, which is also in compliance with NADCA’s standard. The training covers applicable building and IAQ standards and codes, maintenance and housekeeping programs, diagnosing IAQ problems and reporting findings to building owners.

Benefits of HVAC Restoration

Restoration of HVAC system components is the process of preparation, refurbishment, resurfacing, repair, or replacement of any surface common to the air stream. Restoration procedures must only be performed after mechanical cleaning.

Air side surfaces of HVAC systems found to be compromised during the HVAC cleanliness evaluation or during cleaning must be documented for restoration or replacement to industry standards, as required.

HVAC system components subjected to catastrophic events such as fire, smoke, flood, or water-damage must be subject to restoration procedures. Component degradation that results in compromised system performance must be corrected through restoration procedures if possible.

HVAC component replacement must take place if acceptable cleanliness levels cannot be achieved through mechanical cleaning and restoration methods.

Source: National Air Duct Cleaners Association (NADCA)

Aspen Air Duct Cleaning is an approved Aeroseal Dealer, licensed and ensured, and a member of the National Air Duct Cleaners Association (NADCA) and National Organization of Remediators and Mold Inspectors (NORMI).


Please contact Aspen Air Duct Cleaning at 1-800-931-6653 for an Air Duct System Inspection and to learn more about how sealing air duct leaks can improve indoor air quality and reduce energy costs. Or email info@aspenenvironmentalservices.com.

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Fall Is the Perfect Time to Clean Your Air Ducts


Why is Fall the perfect time to clean your air ducts? Well, there are a couple of good reasons. The first is you want your ducts to be working at high efficiency in the winter while you’re stuck inside your home or office. Indoor air quality is more important than ever at this time of year to avoid a buildup of dust, dander, debris, and contaminants like mold, fungi, and bacteria-  that you could be breathing in. Clean air ducts mean fresh, clean air! 


The second reason to clean your air ducts in the Fall is energy savings. As were just about to enter the Winter season with high-energy costs to heat our homes and offices, why pay more than we have to? Dirty air ducts have to work harder to maintain your temperature settings. That translates to you spending more money on your heat bill. Clean air ducts use less energy and therefore save you money!

Aspen Air Duct Cleaning Services are experts at diagnosing and eliminating indoor air quality problems for both commercial and residential properties. We provide HVAC Duct Cleaning, HVAC Anti-microbial Applications, Mold Remediation, and Aeroseal Duct Sealing.

On the commercial side, we work in churches, retail and commercial buildings, and expansive HVAC systems of high-rise office buildings and industrial complexes. On the residential side, we diagnose and eliminate indoor air quality problems in private homes, high-rise apartment complexes, and condo associations. We also clean out clothes dryer vents to eliminate a commonly overlooked fire hazard.

Aeroseal – the Latest in Duct Cleaning Technology

Aspen Air Duct Cleaning is an approved Aeroseal Dealer, offering Aeroseal Duct Sealing, a patented breakthrough technology that tackles leaks from the inside out. Aeroseal software allows our technicians to accurately measure the duct leakage in residential homes and commercial buildings. The Aeroseal process puts escaping air under pressure and causes polymer particles to stick first to the edges of a leak, then to each other until the leak is closed.

The Aeroseal process:

  • Reduces up to 90% leakage
  • Fixes pressurization issues
  • Decreases fan horsepower
  • Extends equipment life

The typical commercial building in America loses 25% to 40% of its heating and cooling energy through the ductwork. Aeroseal reduces up to 90% of that duct leakage. And, our commercial duct sealing system will reduce heating and cooling costs by up to 20%.

Ensure the maximum health and efficiency of your HVAC system with professional air duct cleaning!

Source: Aspen Air Duct Cleaning

Aspen Air Duct Cleaning is an approved Aeroseal Dealer, licensed and ensured, and a member of the National Air Duct Cleaners Association (NADCA) and National Organization of Remediators and Mold Inspectors (NORMI).

Please contact Aspen Air Duct Cleaning at 1-800-931-6653 for an Air Duct System Inspection and to learn more about how sealing air duct leaks can improve indoor air quality and reduce energy costs. Or email info@aspenenvironmentalservices.com.

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8 Low- and No-Cost Ways to Save Energy in Buildings


In an article appearing in a recent issue of Engineering Green Buildings, a newsletter from HPAC Engineering, author Kenneth M. Elovitz identifies several “low-hanging fruit” ideas for budget-minded facility managers looking to cut costs associated with energy use in commercial buildings.

As the author points out, new building projects provide energy-saving opportunities related to design and construction. Existing buildings, however, have a variety of low- and no-cost energy saving retrofit options worthy of consideration as well. Below is a summary of several ideas shared in the piece as well as one added suggestion. 

  1. Analyze Building Energy Use
  2. Reduce Water Pressure or Use Low-Flow Faucets and Showerheads
  3. Reduce Boiler Steam Pressure
  4. Repair Damaged or Missing Insulation
  5. Install Lighting Controls
  6. Consider “Smart” Power Strips
  7. Reset Hot/Chilled-Water Temperature
  8. Seal Leaky Ductwork

We couldn’t agree more with #8! Recent research by the U.S. Department of Energy, McKinsey & Company and others has shed a new spotlight on the major role that air distribution systems play in the energy efficiency of commercial buildings.

It’s not that duct leakage is anything new. It’s been around for about as long as commercial buildings themselves. But the problem has been all but ignored for one simple reason: there were no viable solutions. Few building owners were willing to undergo the demolition, disruption and expense associated with traditional duct sealing methods.

Faced with this reality, scientists at Lawrence Berkeley National Laboratory, with funding by the U.S. DOE, the EPA, and others, focused efforts on finding an answer. They were determined to develop a viable, cost-effective way to seal energy-robbing leaks that currently exist in the miles of ductwork hidden behind the infrastructure of today’s buildings.

The result of their efforts was a new technology that offers a completely different approach to duct sealing – a technology that works from the inside out to seal leaks. Administered as an aerosol mist that is injected and blown into the inside of ductwork or ventilation shafts, the sealing technology can quickly and non-disruptively seal leaks throughout the entire duct system.

In 2008, Steven Winters Associates (SWA), armed with this and other innovative air flow management technologies, began work on a project that would have engineers rethinking ventilation retrofitting and energy saving strategies. Combining these new technologies, SWA engineers completely rehabilitated the duct system of a 55-year old multi-family apartment building in West Caldwell, New Jersey, saving the building owners an estimated $29,000/year in reduced energy costs.

Following the success of this and other similar projects, the use of aerosol-based duct sealing has surged in retrofit projects around the globe. Thousands of commercial buildings – from hospitals in Dubai to condos in Australia, to schools, office buildings and hotels across the United States – have used Aeroseal technology to realize energy savings and improve the overall performance of their commercial buildings.

Now that a viable, cost-effective means of sealing duct leaks is readily available, we are also seeing a tightening of standards and a change in the rules related to energy conservation. Top government regulatory agencies and industry groups have begun to include duct sealing on the top of their list of low-cost opportunities for energy savings.

The choices for energy-saving measures (ECMs) in commercial real estate today are vast. Some cost hundreds of thousands of dollars – others little or nothing. Thanks to innovative advancements in duct sealing technology, sealing duct leaks has earned its place as a new low-hanging fruit in the arsenal of those looking to reduce the operational costs of their commercial buildings.

Source: Aeroseal

Aspen Air Duct Cleaning is a certified Aeroseal Dealer, licensed and insured. Please contact Aspen Air Duct Cleaning at 1-800-931-6653 for professional air duct and dryer vent inspection, cleaning, and repair. Or email info@aspenenvironmentalservices.com

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Stop the Leaks in Your Building and Improve Your Bottom Line


A Sound Financial Decision

Layout 1

Aeroseal is the most effective, affordable, and viable method of sealing duct leaks. Just like anywhere else, ducts in commercial buildings leak. Leaking ducts cost you money via:

  • Increased Energy Consumption – With fan power representing 40-50% of HVAC energy usage, leakage costs can be significant due to increases in fan speed to compensate for leakage; even 15% leakage can lead to an increase in system fan power of 40%
  • Thermal Loss – When supply air escapes, variations in temperature between rooms and floors occur affecting comfort levels in this space
  • Equipment Overload – Your system will run longer than specified to compensate for pressure loss and temperature accuracy; this could lead to increased maintenance costs and premature component replacement
  • Code Issues – Leakage could lead to ventilation and safety code issues relating to exhaust, along with excessive fan power use
  • Airflow Safety – For hospitals, laboratories and manufacturing facilities, the unexpected spread of contaminants and biohazards through back drafting could pose a liability

The computerized duct system inspection performed by Aeroseal will illustrate not only the building leakage percentage, but also the impact that sealing the leaks can have on your company’s bottom line. Using local utility rates, estimated system operating hours, and other inputs supplied by your operations personnel, our software closely calculates all the financial parameters of the project including:

  • Simple payback
  • Benefit-to-cost ratio and ROI

Let us help you secure increased comfort and air quality in your building as your company saves money. Contact your Aeroseal professionals today and we’ll investigate and locate the hidden problem areas in your duct system. We’ll properly diagnose your system and provide you with a cost-effective, state-of-the-art solution to your duct issues that can save you huge capital and manpower expenditures. Aeroseal seals up the leaks. And the wasted money and hazards of faulty ductwork.

Reduce Your Energy and Ventilation Problems

Are you looking for ways to reduce your building’s energy costs, improve indoor air quality (IAQ), fix your venting issues and extend equipment life? Get a good start by taking a closer look at your ductwork. According to the US Department of Energy, a Lawrence Berkeley National Laboratory study found that the leakage rates of commercial buildings exceed the ASHRAE (American Society of Heating, Refrigerating and Air-Conditioning Engineers) recommended classes by an average of 20 percent. Both new and old commercial buildings exhibit duct system problems including:

  • Increased airflow due to duct leakage
  • Improperly installed duct sealants
  • Damaged sealants: thermal pressure and temperature cycling can damage sealants – especially the rubber-based adhesive found in duct tape -increasing leakage over time

But there’s a simple solution to this costly problem. You can reduce your energy and equipment repair costs resulting from compromised ductwork with the most advanced duct sealing in the industry – Aeroseal Certified Duct Diagnostics and Sealing.

How Does Aeroseal Work?

how it works

The patented Aeroseal duct-sealing technology is an effective and affordable method of sealing ductwork systems within commercial buildings. The Aeroseal duct sealing process begins and ends by conducting a thorough diagnostic test of the duct system. The process works like this:

The diffusers are temporarily blocked while sealant is blown throughout the duct system. Pressure maintained within the system causes the air to accelerate as it exits through the leaks. The Aeroseal particles build up to span and seal the holes – up to 5/8 of an inch – without coating the ductwork. Aeroseal effectively seals ductwork from the inside out by using UL-tested and approved sealing material.

At the conclusion of the process, the diagnostic test is performed again summarizing your building’s amount of leakage reduction to ensure Aeroseal was successful.

Additionally, the Department of Energy declared Aeroseal as one of the most beneficial energy technologies for American consumers.

Source: Aeroseal

Aspen Air Duct Cleaning is an approved Aeroseal Dealer, licensed and ensured, and a member of the National Air Duct Cleaners Association (NADCA) and National Organization of Remediators and Mold Inspectors (NORMI).

Please contact Aspen Air Duct Cleaning at 1-800-931-6653 for an Air Duct System Inspection and to learn more about how sealing air duct leaks can improve indoor air quality and reduce energy costs. Or email info@aspenenvironmentalservices.com.

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Energy Auditors Specify The Use Of Aeroseal To Increase Energy Efficiency And Reduce Duct Leakage by Up to 95%


Owners of Northgate II, a Section 8 community in Camden, New Jersey, were looking to reduce energy costs associated with its 308-unit apartment high-rise. To receive upgrade funding through the State’s Multifamily Weatherization Assistance Program, they had to prove that upgrades would result in substantial energy savings and a payback period of ten years or less. Energy auditors brought in to evaluate and recommend an effective course of action specified changes be made to the building’s electrical and mechanical systems.
They also insisted that Aeroseal be used to seal leaks throughout the high-rise’s entire duct system.

In Brief
Property Managers: Fair Share Development
Project Contractors: McDonald Building Co.
Property Name: Northgate II
Type: Section 8, 23-story high-rise, 308 units
Goal: Reduce energy usage by 15% or more
Before Aeroseal: Average energy leakage: 971 CFM*
After Aeroseal: Average 83% reduction in CFM loss
Cost savings: $34,000/year from reduced exhaust fan usage. An additional $3,000/year from increased heating efficiency.
Payback: 3-4 years.
*Cubic feet per minute


An initial audit of the 23-story high rise’s ductwork showed that there were thousands of leaks throughout the building’s exhaust system. As a result, the two large fans used to draw stale air out of each of the individual apartments consumed a lot of energy to do its job. By effectively sealing the leaks with Aeroseal and updating the system’s dampers, the fans’ energy use was reduced by more than 217,000 kw/hours – a savings of more than $34,000 a year in electricity. Building owners also achieved an additional $3,000 a year in savings through more effective heating.


“Preliminary testing revealed fairly large gaps throughout the building’s vertical exhaust ducts. The Aeroseal process fixed that problem and in doing so, significantly improved the efficiency of the building’s two exhaust fans. Aeroseal technology played a significant role in helping reduce energy consumption and ultimately meeting the requirements of the State’s Weatherization Assistance Program.”
John Ambrose, McDonald Building Company

“Our multi-family building specialists have a keen interest in ventilation systems and the wasted energy that often results from leaky ductwork. Through our ongoing experience with Aeroseal technology we’ve come to including the Aeroseal process as a standard recommendation when leaky duct systems are a concern.”
Don Casper, energy auditor, Steven Winter Associate


Aeroseal – The Technology

  • Developed at Lawrence Berkeley National Laboratory in 1994.
  • Research for Aeroseal was partially funded by the EPA and the U.S. Department of Energy.
  • Aeroseal is the only duct sealant technology that is applied from the inside of the duct system. It is delivered as a non-toxic aerosol mist that seeks out and plugs leaks.
  • Aeroseal has proven to be 95% effective at sealing air duct leaks.

Aeroseal – The Company

  • Aeroseal LLC is a subsidiary of JMD Corporation. The company is dedicated solely to the support of its dealers and the expansion of Aeroseal technology as a primary means of residential and commercial energy conservation.
  • Aeroseal is the sole owner and licensee of Aeroseal technology.
  • Aeroseal technology was bought by Carrier Corporation in the late 1990s. In 2010, Mark Modera, the inventor of Aeroseal, with the support of private equity investors, bought the company from carrier to realize the full potential and benefits of the technology. This lead to the launch of Aeroseal LLC in 2011.

Source: Aeroseal

Aspen Air Duct Cleaning is an approved Aeroseal Dealer, licensed and ensured, and a member of the National Air Duct Cleaners Association (NADCA) and National Organization of Remediators and Mold Inspectors (NORMI).

Please contact Aspen Air Duct Cleaning at 1-800-931-6653 for an Air Duct System Inspection and to learn more about how sealing air duct leaks can improve indoor air quality and reduce energy costs. Or email info@aspenenvironmentalservices.com.

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