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Cross-section of an energy-efficient vinyl window showing argon gas-filled glass panes and frame structure.

Benefits of Argon Gas Windows

4 minute read


Builders use argon gas windows to increase energy-efficiency and comfort in the residential and commercial spaces they develop. These thermal windows, also known as Insulated Glass Units (IGUs) are typically double-pane construction. This means they’re built with two or three glass layers with a sealed space between those panels. The spaces between the glass layers are filled with argon or another gas type, to help slow the process of heat transfer through the glass, among other important benefits they provide.

What are the Benefits of Using Argon Gas Windows?

Nearly all modern thermal windows utilize a gas fill. There are important benefits of using argon gas windows compared with other thermal window types. The United States and Canada both offer tax credits to homeowners and businesses, to encourage the use of this window type, by offsetting the cost of argon gas windows for increasing energy efficiency. Argon is naturally occurring, odorless, colorless, and non-toxic. It’s also relatively inexpensive.

Argon delivers significant advantages over air filling in windows. Air inherently contains moisture, which can transform into condensation between glass window panes, which can cause windows to have a cloudy appearance. Argon is also a superior insulator, compared with air. It improves a window’s thermal efficiency to perform comparably to wall insulation R-value.

Here are some of the many impressive benefits of filling windows with argon gas:

  • Argon gas filling improves a window’s U-value and its thermal effectiveness.
  • Argon is a harmless, non-toxic gas that presents no risk to building occupants or the environment due to gas leak.
  • Using argon gas filling helps minimize condensation on window glass.
  • Argon does not promote damage to window frames, making argon gas windows an ideal long-term solution for energy-efficient windows.
  • Using gas filling minimizes loss of warmth due to heat exchange through the glass.
  • Argon filling will not cause corrosion to windows, as oxygen filling can.
  • Argon can be used in conjunction with low-E coatings, to optimize energy efficiency.
  • Gas-filled multiple-pane windows are popular with builders for helping in soundproofing.
  • Argon gas windows can be used in any climate.
  • Filling with argon is highly cost-effective, adding under $50 to the cost of a new window.
  • Argon windows are inexpensive to buy but can return large energy cost savings.
  • Gas-filled windows are available in both commercial and residential styles and sizes.

Frequently Asked Questions About Argon Gas Windows

How Do I Know if My Windows Have Argon Gas?

Check the corners of the window to locate the NFRC rating sticker, manufacturer identification, descriptions such as low-E glass, Argon, Energy Star, among other information.

How Long Does Argon Gas in Windows Last?The International Association of Certified Home Inspectors reports findings by the National Glass Association (NGA) that windows filled with argon gas will not realize significant performance loss while they retain a minimum of 80 percent of their gas content. The NGA estimates that, at the maximum rate of leakage, an argon gas window can perform as designed for approximately 20 years without refilling.
Does Argon Gas in Windows Reduce Noise?

Gas-filled windows have noise reduction properties that make them popular for helping in soundproofing. The noise-reducing quality is largely due to the inherently superior noise-blocking performance of multiple glass panes in windows containing argon or other gasses.

How Much Do Argon Gas Windows Cost?Like all filled thermal windows, argon gas windows are priced based not only on the type and grade of window construction materials but also on dimensions, window design features, and other factors. Advanced Window Products offers excellent pricing on top-quality energy-efficient vinyl windows. Purchase with zero down, zero interest, and financing over 24 months with approved credit. We also offer a $2,000 discount with purchases of 10 windows or more.
Which Is Better ‒ Argon or Krypton Gas Fill in Windows?

These days, the majority of thermal windows are filled with either argon or krypton gas, or the two combined (and/or nitrogen, xenon, or oxygen). Argon delivers a better value overall. Less expensive than krypton, which performs comparatively well as an insulator, argon is usually used for filling wider spaces between double panes, whereas more expensive krypton is used for filling thinner spaces between triple panes.

Advanced Window Products, Salt Lake City Utah

We are the leading window company in the state of Utah. We sell high-efficiency windows and perform windows installation services directly from our factory. This allows us to provide major cost savings to our customers. It also prevents common warranty issues customers often experience with third-party sellers.

All Advanced Window Products professional installers hold lead-safe, Energy Star, NFRC, AAMA certifications and are deeply committed to excellence in customer service.

Visit our Advanced Window Products showroom in Salt Lake City anytime, or call (801) 505-9622 for your free in-home estimate.

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Reviews

Heather Nava AvatarHeather Nava
We recently had new windows installed and the difference has honestly been incredible. The first thing we noticed was the noise reduction. We live close to two major roads, and traffic noise used to wake me up constantly throughout the night. Since installing these windows, it’s amazingly quiet inside the house — I can barely hear anything outside now. That alone has been life-changing for us.Beyond the sound reduction, the windows completely upgraded the look of our home. They feel modern, high-quality, and extremely well made. The value for the price was excellent, especially considering how much they improved both comfort and appearance.We’ve also noticed a huge difference in temperature control throughout the house. Rooms stay much more comfortable, and the home feels far more energy efficient overall. The house maintains temperature better and feels less drafty no matter the time of day.Overall, we could not be happier with the investment. The combination of appearance, quality, energy efficiency, and especially the noise reduction exceeded our expectations. - 5/12/2026 
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ray bush Avatarray bush
If you are on the fence about using Advanced Windows, go ahead and take the leap. The entire experience was seamless and professional. Mason was our initial sales contact. He was never pushy but he simply gave us the facts and let us ask the questions and do the research. He gave us a list of nearby addresses of customers. We drove by each one and even rang doorbells. Yes we sure did! All were happy with their choice and the windows are beautiful. They use argon gas in between panes and you really notice how the transfer of heat is stopped in the Arizona sun. Truly a game changer. The windows are manufactured by the same company used by the higher end companies but at a much more affordable cost. Life time warranty to boot.The installation team was outstanding. I asked for their names because they deserve a shout out Francisco,Mario,Julio,Saul and Martin. If you can, ask for them by name. They were professional, knowledgeable,detail oriented,courteous and clean. No mess. The company got our windows done in 1 day which is mostly due to this team’s hard work and due diligence. I will recommend this company to anyone! The windows work effortlessly and really add to the appearance of our home. I have no doubt the was one of the best decisions we have made to add value to our home. - 5/11/2026 
Susie Steenblik AvatarSusie Steenblik
My windows are beautiful that I got from Advanced Windows. Dallin helped me order my windows and he was amazing to work with. So professional and helpful. Gasson and his crew are second to none. You definitely want them when it comes to installation. They are perfectionists and will make sure everything is the exact way you want your windows to be. Grace in the office is kind and on top of scheduling all of the appointments. I would definitely recommend Advanced Windows if you are thinking about getting new windows. - 5/11/2026 
Dave Thomas AvatarDave Thomas
This is the second year in a row they washed my windows. The glass turns out looking brand new! Their customer service is outstanding. I wouldn’t use anyone else. - 5/11/2026 
Chris Gloschat AvatarChris Gloschat
From the first meeting where we discussed the product and price to the installation the whole Advanced Windows team was excellent. The price was great, the product is great, and the fact that they manufacture locally means I'm not worried about them being able to make good on any warranty issues. I recommend them wholeheartedly and would use them again. - 5/08/2026 
Paul Felice AvatarPaul Felice
Everyone we contacted were professional, helpful and clear - 4/16/2026 
Braulio Pisano AvatarBraulio Pisano
It was great working with Advanced Window Products. The 0% finance and over all cost of our 15 windows was the lowest price out of 4 other companies.Installation was fast and easy only taking 2 days. We had a few issues and the team came back is fixed them in less than 1 hour. All our windows work great and we can feel the difference already.Looking forward to see how well the windows perform in summer - 4/16/2026 
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