A Primer on Mulled Windows

Your WMGB Consultant will:

  •  Measure & inspect your project
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Klay Fennema
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Scott DeWitt is the absolute 100% reason for my review being 5 stars instead of 3. He was a great installer, timely, respectful, genuine, and did the job right. Everything else unrelated to his work wasn’t all that impressive. Thanks Scott for the top tier work.
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Edonna Russell profile picture
Edonna Russell
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Had a glass block window put in my basement crawl space. They did a great job and they were quick and efficient. Would have them out anytime.
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Edward Ruimveld
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had WMGB replace a glass block window that they installed over 30 years ago during a resent walk in shower up grade. Scott our installer and the sales crew were great the Mrs is very happy with it .
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Carol Jensen
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We really like the new door, we are planning to get another door replaced it went so well.
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Randy B
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We discovered this company while visiting relatives in Ohio. Since our initial contact to replace two sets of French Doors, the entire process has been exceptional, simple, and the products are of the highest quality (while not the priciest in the market!) No hesitation to recommend this company to anyone.
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Alexander Kish
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Great company to work with and fantastic work, would highly recommend!
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Kaelee Steffens
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Keith came out to review and quote our project. He was timely and informative. Then Thomas came out to install the windows - he was early (AWESOME), polite, completed the task quickly, and cleaned up after himself. We are happy with our windows too - they look great. We'll definitely work with this team again on our future window projects.
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Simply put, window mulling is the process of joining two windows together. Mulled replacement windows are connected to each other by their frames. 

What are the benefits of having two separate windows combined? 

Mulled window

The Advantages of a Mulled Window 

For one thing, the combined glass area of two windows can let in more sunlight, which can make a cramped interior feel more spacious and improve the mood in a room. Plus, a wider glass area gives you a better view of the scenery outside. Design-wise, a mulled window would serve as a larger visual focal point that can help draw more attention to your exterior or highlight certain features in your interior.  

Factors to Consider Before Combining Window Units 

You can purchase new mulled windows, or you can have contractors combine the windows in your home. However, not all windows can be mulled. Your contractor will need to take into account several factors, such as the window glass area and the size of the window itself. There’s usually a limit to how big a mulled window can be – if the combined window units are too big or heavy, your home’s walls may not be able to support your mulled window. 

Mulling your windows might also void their manufacturer’s warranty. As such, before making a decision, you should go through the window warranty or check the window manufacturer’s website. 

Window-Shopping Tips

If, however, you decide to purchase mulled windows, make sure to look for the ENERGY STAR® label, which indicates a window has met energy performance standards. After all, since mulled windows have a wider glass area, there’s a higher chance heat can escape or pass through the window glass. For more window-shopping tips, consult an experienced contractor. 

WMGB Home Improvement, a company with more than three decades of experience, offers a wide variety of premium windows, including egress window options. To get a free quote, call us at (616) 243-3700, or fill out our form here. We serve homeowners in Kalamazoo and Grand Rapids, MI, as well as the surrounding communities. 

Contact Us Today

WMGB Home Improvement is committed to making your home look its absolute best. To learn more about our home improvement products and services, give us a call at 616-319-0080 or Contact Us online.
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