Aeroseal Duct Sealing Featured In North American Builders Magazine


If you’re looking for information about the transformative nature of Aeroseal duct sealing technology, just check out the latest issue of North American Builders magazine. The July/August issue includes a feature article on Aeroseal entitled “Groundbreaking Solution” and the 6-page spread really highlights how the innovative technology is having a huge impact on commercial building retrofit projects. Staff reporter, Kecia Bal, did a great job digging into the background of several commercial projects where energy savings and improved ventilation/indoor air quality were the goals…and Aerosealing was the only way to reach them.

From a luxury condominium high rise to a major university, to a New York City skyscraper, the article offers a variety of examples of how Aeroseal duct sealing technology is changing the rules on building performance.

“The problem is enormous,” Aeroseal’s Neal Walsh is quoted as saying. “All of the research points to the same thing, the No. 1 cause of energy waste in existing buildings today is air duct leakage.” And as the article goes on to explain, the problem has been all but ignored for centuries simply because there was no viable solution…until now.

“That’s where Aeroseal’s patented technology process to seal cracks and holes in air duct systems in new or existing structures offers a solution.”

You can learn how hundreds of commercial buildings across the U.S. have used Aeroseal duct sealing to eliminate chronic mold, improve ventilation and reduced energy consumption – and as a result, saved thousands of dollars each year in reduced energy bills alone. And if your looking for full-color images that show what 21st Century duct sealing looks like, this is the article to check out. If you don’t have a subscription and can’t find the latest issue of North American Builders at the newsstand, you can check it out on line:

Source: Brad Brenner for Aeroseal

Aspen Air Duct Cleaning is an approved Aeroseal Dealer. Call 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 your energy bills.


The HOLE TRUTH About U.S. Buildings




It’s time to tell others that secret that industry professionals have been keeping for so long.

If you are a building engineer or facility manager or commissioning agent – or any other professional involved in commercial properties, chances are pretty good that you already know what a recent survey of building professionals uncovered. The majority of U.S. buildings today are broken. Their HVAC and ventilation systems stink – both literally and figuratively.


In a recent survey conducted by the Building Commissioning Association (BCA), 74% of building professionals agreed that leaky ductwork is a common problem found in U.S. buildings today. Most agree that leakage rates are typically 15% or more. 75% of respondents believe that these leaks are responsible for significant energy loss and many find high duct leakage rates common in new buildings as well as existing structures

Why keep this information a secret? And why spill the beans now?

For decades the problems associated with leaky ducts and ventilation shafts have been ignored for one simple reason – there hasn’t been a viable solution. With ductwork running throughout the interior of our buildings, accessing and sealing these leaks has been a near impossible task. Few building owners are willing to go to the enormous expense and disruption of tearing down walls to access and repair the ductwork.

And so we’ve all just turned a blind eye to the problem.

With Aeroseal technology, that has changed. Over the past few years, hundreds of buildings – from New York and Boston, to Chicago, Los Angeles and San Francisco – have all had their ductwork repaired with Aeroseal duct sealing technology. In most cases, it’s been done with little to no disruption to the day-to-day operations of the buildings.

In New Jersey, a 55-year-old multi-family apartment building had its ductwork rehabilitated without disturbing a single occupant. In Atlanta, Georgia, a luxury hotel had 10 23-story ventilation shafts sealed tight without a single guest noticing. In lower New York State, the ventilation system in a prestigious medical center was sealed tight – including those sections servicing the ER and laboratories – while the medical staff continued to perform surgeries and care for patients.

So now that there is a proven solution to this decades-old problem, experts are speaking out. They are talking about the role that ductwork plays in proper HVAC functioning and ventilation. Duct sealing commercial buildings is quickly becoming the new low hanging fruit for those looking to reduce energy costs. Sealing leaks in ventilation shafts is being singled out as the cost effective solution to stale air, uneven heating and cooling, persistent mold and mildew and musty smells. It is being highlighted as a means to improve worker productivity, reduce indoor allergies, and solve excessive absenteeism.

Now that there is a viable, cost-effective solution to duct leakage in commercial buildings, it’s time to tell the “hole truth.” And it’s time to help our clients solve the problems that have been ignored for far too long.

Source: Brad Brenner for 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


The 7 Biggest Mistakes That HVAC Contractors STILL Make

Someone recently forwarded me a blog post entitled “The 7 Biggest Mistakes That HVAC Contractors Make.” It was written by Allison Bailes, founder and owner of Energy Vanguard, a Decatur, GA-based company that trains HERS raters and designs high performance HVAC systems. While the entire article was good reading, I was particularly struck by the fact that the majority of mistakes highlighted by the author were clearly relevant to those that work on duct systems if not directly related to Aeroseal duct sealing itself. Let’s see what you think.

Mistake One: Ignoring Air Flow
Bailes points out that this is perhaps the biggest and most consistent problem he sees with today’s HVAC work. The focus is on the box and not much on the ductwork. In many cases, the duct system is not sized properly and/or has substantial leaks. He mentions a contractor that advocates doing a duct changeout with most every new system he installs.

This is probably not a bad idea in the best of all worlds, but we all know the reality. For most homeowners, the work and costs involved in replacing an entire duct system makes this option out of the question. It is however, possible to remedy a good portion of the problems related to poor ductwork with Aeroseal. Since the technology works from the inside of the ducts to seal leaks, it’s possible to treat the entire duct system without having to tear into walls or rip up insulation.

In fact, even if you were to replace the entire duct system, studies show there is no guarantee that it will not leak. An HVAC contractor recently told me about his experience working with the biggest Energy Star community in the state of New York. He and his crew painstakingly sealed the ductwork in hundreds of new homes using tape and mastic. When done, each home was tested and passed the stringent duct leak standards. That was in the Fall. When the homes were retested just a few months later, they all failed. The seasonal change and other factors had a huge impact on the integrity of the ductwork. His company now Aeroseals each and every duct system before the homes are completed.

Mistake Two: Ignoring The Opportunities In Home Performance
Add another expert to the list of those who sees home performance as the future of HVAC. As a recent article in The NEWS highlights, duct services like Aeroseal can be a profit center for HVAC professionals. For most of us, the days of selling boxes alone are over. Homeowners are looking for real solutions to energy savings and increased indoor comfort. If you are not providing these solutions, you are leaving money on the table – and an open door to your competitors.

And if you are a homeowner, keep in mind that your heating and air conditioning contractor should be the ideal expert to turn to for energy saving assistance. That means much more than selling you a fancy new furnace. In fact, if you’re buying a new energy-efficient heater or air conditioner, be suspicious if the person selling you that system doesn’t at least talk to you about your ductwork. You can spend a ton of money on a new efficiency system but if your ductwork is leaking, you’ll never get your money’s worth.

Mistake Three: Forgetting the V in HVAC
Due to the difficulties often associated with solving ventilation problems, HVAC professionals typically ignore IAQ (indoor air quality) issues common in kitchens and bathrooms. Tighter construction standards only exacerbate poor ventilations problems, yet these issues continue to be overlooked.

Here too, Aeroseal technology can often be an easy, effective solution to anemic ventilation systems that fail to adequately remove stale air.

And its not just smells that are of concern. I was recently talking to the manager of a large hotel that had chronic issues with bathroom mold and mildew. Weak ventilation failed to eliminate the humid air that led to the mold – especially around the caulking in the showers and around the tubs. His maintenance crew spent hours each week bleaching and scrubbing the mold away.

The hotel recently had the building’s exhaust shafts sealed with Aeroseal and now the mold is gone.

Mistake Four: Skipping The Math
Homes have changed. So have HVAC systems. Making sure you are getting the right amount of treated air to all rooms and areas of the home starts with proper testing and calculating to ensure the system is properly sized from the start. But even a perfectly sized system will fail to work properly if leaks interfere.

One of the great things about the Aeroseal process is that its computer-controlled system provides an accurate measurement of the leakage before the sealing process even begins. Then, as the sealant is introduced into the inside of the ductwork, the homeowner can actually watch as an illustrative graph indicates the rate of leak reduction as each of the individual holes gets sealed. At the end of the process, the homeowner receives a document that specifies the before rate, the after rate and the final percentage of reduction.

Times are changing. What worked before may not work now. Specification and building codes are becoming more stringent, new technologies are providing improved solutions, and homeowners are demanding higher performance – higher energy efficiency solutions. The good news is that technologies like Aeroseal are helping meet these new standards and the new homeowner demands…and they’re providing HVAC professionals with a clear and natural path for future success.

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