How To Look At A House
McGarry and Madsen's home inspection blog for buyers of
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What is the average life expectancy of a fiberglass window?
Friday, June 26, 2020
How long does a fiberglass window last?
You can expect a fiberglass window to last 20 to 45 years, with an average of 35 years. Fiberglass is more expensive than vinyl but typically a longer lasting window.
Here’s a bar graph that compares the life expectancy of fiberglass windows to other available types.
Go to our blog post What is the average lifespan of the parts of a house? for rating of other house components. To understand the basis, potential use, and limitations of lifespan ratings, see How accurate are the average life expectancy ratings of home components? Are they actually useful?
Also, our article What is the average life expectancy of windows? includes an overview of the many factors that affect how long a window lasts.
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To learn more about windows, see these other blog posts:
Photo - Pella
NOTE: These life expectancies are based on data provided by InterNACHI, NAHB, FannieMae, and our own professional experience. Because of the numerous variables that can affect a lifespan, they should be used as rough guidelines only, and not relied upon as a warranty or guarantee of future performance.
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