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Longevity of Andersen Windows: Factors Affecting Their Lifespan

Andersen windows are known for their quality, durability, and energy efficiency. There are several reasons why they have been around so long and continue to be the top choice of homeowners. Andersen windows last a long time, but they don’t last forever. All things inevitably wear out and eventually need to be replaced, and windows are no different. So how long can you expect your Andersen window to last?

How Long do Andersen Windows Last?

Andersen Windows

The answer depends on several factors:

In general, however, Andersen windows can last anywhere from 25 to 50 years with proper maintenance.

How well you care for the window

A lot more goes into making a window last than just choosing a good brand. Proper installation, regular maintenance, and proper cleaning are all very important.

The Materials Used

Andersen windows are available in fibrex, fiberglass, wood, vinyl, aluminum material options. Fibrex is more durable than wood or vinyl. Fiberglass and aluminum are also more durable than wood or vinyl. A composite material like fibrex is harder to crack or dent than other materials, so it will last longer too. While fibrex is significantly more expensive than wood or vinyl, it lasts far longer (20+ years). Aluminum is also quite durable and can last up to 20 years with proper care. Aluminum alloys are more prone to corrosion, however, so they tend to require more frequent maintenance than fibrex or wood products. Fiberglass is much less likely to warp or sag over time which makes it a great option for exterior windows because they’re less likely to leak air when they get old.

Location of Installation

The climate where your home is located will have an impact on how long your window lasts. For example, if you live in a humid climate, it may be harder for your windows to function properly than if you live in a desert climate where it’s dryer all year round. If you live in a place where trees grow and provide shade year-round, then it’s unlikely that your new window will get much sun exposure at all. This means it won’t fade as quickly as a window in an area with more direct sunlight exposure would.

Usage patterns of the home

If you live in an area with harsh seasonal weather changes or lots of storms, you’ll want to choose windows that are more durable than others – such as hurricane-resistant windows or other types of storm-resistant windows (depending on where you live).

Size of Your Window

The larger a window is, the more area there is for leaks and cracks to form over time – especially if you live in an area that gets very cold or hot during the winter months (or summer months). Bigger windows also tend to weigh more because they have thicker frames – which means that they’re harder for one person to install on their own without help from another person (or two).

The quality of the installation process

Andersen windows are designed with a few simple steps that allow for easy installation by just about anyone who knows how to work with power tools. However, if you don’t know what you’re doing, you could end up damaging or destroying your new window, which will shorten its lifespan considerably.

Poor installation techniques include not sealing the windows properly,  leaving gaps around the frame that allow water to enter and cause rot or mold problems. If the window sashes don’t fit properly with each other or with the frame, air leaks can develop as well as drafty openings that allow cold air into your home during the winter months and hot air out during the summer months when you want your windows open for ventilation purposes.

How long do Andersen fiberglass windows last?

A lot longer than vinyl windows!

Even though they aren’t as strong as steel or aluminum frames, they can still last over 50 years if properly maintained. This means that if you bought your house 10 years ago with brand new Andersen fiberglass windows installed by the builder or contractor, then those same windows should still be going strong today!

Fiberglass is a composite material made of polyester resin, glass fibers, and pigments. Fiberglass is very strong, lightweight, and durable. It also has a high R-value which means it will keep your home warmer in the winter and cooler in the summer, reducing your energy bills significantly. Fiberglass is used in all types of construction applications, including windows, doors, siding, and roofing just to name a few.

What is the Warranty on Andersen Windows?

Andersen Windows

Andersen offers a lifetime warranty on their original owner’s products, as well as a 10-year limited warranty on their Renewal by Andersen® products. As you might expect, warranties vary based on the type of product you purchase and where you live.

The Andersen Window Limited Warranty is a comprehensive, transferable warranty that covers your window from labor, installation, and manufacturing defects.

The 20-year coverage includes the glass and the patented Fibrex material that surrounds the glass.

Coverage includes:

  •       Parts (glass, sash, screen frames, screen fabric, etc.)
  •       Labor (initial installation by an authorized installer)
  •       Initial installation (by the authorized installer)

The coverage is transferrable under a limited warranty to the subsequent owner if the original owner is deceased or sells the home.

Warranty Registration

Registering your product is easy. You need to know the type of product, the amount purchased, and the date of installation. Visit the Anderson Windows warranty registration page to register your windows, patio, or EMCO storm doors. The process is simple and only takes minutes.

How to Make a Warranty Claim

To make a warranty claim, contact the retailer or dealer where you purchased the windows or doors. You can also contact their offices or go to the Parts and Service section of their website. Provide them with a description of what you bought along with measurements for the glass, the product’s identification number, glass logo information, your date of purchase along with your name, address, and phone number, and the location where the windows or doors were originally installed. Describe the problem you’re experiencing concerning the windows.


Andersen Windows is one of the most well-known window brands in the world. The company has been around for over 100 years and is still going strong. That’s because Andersen windows are known for their durability and longevity.