Your home’s windows keep your indoor space comfortable, make your home energy efficient, and offer picturesque views of the outdoors. Eventually, though, all windows call for replacement, no matter what they’re made of, and replacing your windows can make your space more comfortable and increase your home’s value. Read our guide below to learn what affects a window’s lifespan, how long different window materials last, and which signs mean it’s time to replace your windows.

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Factors That Affect Window Lifespan

Factors that influence how long your windows can last include your local climate and how successfully you maintain your windows. The factors below also play roles:

• Frequency and type of maintenance: Regularly cleaning your windows and frames allows you to remove mold and check for damage. Repairing minor issues immediately can prevent significant wear and tear, which can extend the lifespan of your windows.
• Local climate: Harsh weather conditions can influence how long your windows last. Exposure to moisture, wind, and extreme temperatures can cause window materials to deteriorate more rapidly. Proximity to salt water can also cause corrosion that damages window materials.
• Proper installation: Incorrect installation can cause drafts, leaks, and premature deterioration of window frames. Contact a professional for a successful window replacement.
• Window materials: Your window’s glass type and frame type affect how long it will last. Windows with double or triple panes usually last longer than windows with single panes, and vinyl frames typically last longer than wood.

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Average Lifespan of Different Window Materials

The materials your windows are made of can determine how long the windows last. Read more about how long different types of windows last below.

Aluminum Windows

Aluminum windows typically last 15–30 years. They’re especially durable, don’t rust, and require only minimal cleaning with non-abrasive cleaners and soft cloths. Aluminum window frames are less energy-efficient than other types, though, and they are an unwise investment for homeowners in areas that are prone to lots of moisture or extreme climates.

Fiberglass Windows

Fiberglass windows are durable, waterproof, and last for 30–50 years or longer. Fiberglass windows can resist extreme temperature fluctuations, and don’t swell or warp. Fiberglass is also an exceptional insulator, a sound deadener, and one of the strongest materials available for window frames. Maintenance only requires occasional cleaning with water or a gentle cleaner.

When it comes to drawbacks, fiberglass windows are typically more expensive than other window types, require professional installation, and fade over time if they’re not powder-coated. 

Vinyl Windows

High-quality vinyl windows last for 20–40 years, are less expensive than other types, are especially energy-efficient, and require only little maintenance. They successfully keep out heat and cold, are easy to install, and are available in various colors.

Vinyl windows can sag, soften, warp, or twist in extreme heat, though. They can also discolor over time and are difficult to paint. 

Wood Windows

Wood windows typically last 15–30 years, depending on how successfully you maintain them. Wood window frames have a classic appeal, are excellent insulators, and are easy to customize.

Wood requires more maintenance than other window materials, though, and it’s typically more expensive than other types. Wood window frames require occasional sealing or painting to prevent damage from moisture, UV rays, and termites.

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Signs It’s Time to Replace Your Windows

There are certain signs that indicate you need to replace you windows, such as operational problems, damage from moisture, or certain types of drafts. Read more below.

Operational Problems

Windows that are difficult to open, close, or lock probably need replacement. These issues are products of warped frames, worn hardware, or broken balance systems. You can repair some of these, but persistent issues mean your windows need replacement.

Condensation and Moisture

Condensation that builds up on the outside of your windows is normal, but condensation on the inside of your windows or between the panes is cause for concern. Condensation in these spots means the seals have failed or the window has a cracked or weakened frame.

Drafts and Air Leaks

Old or single-pane windows are prone to drafts that make your home less comfortable and increase energy bills. Newer windows are also vulnerable to drafts when they’ve incurred damage. Check for temperature changes near windows or use a candle to test for drafts. Weatherstripping can offer you some relief, but drafty windows usually call for replacements.

Visible Damage

Windows or frames that have incurred damage allow moisture and air to enter your home, which can cause additional damage. Replace these windows as soon as possible, as even minor cracks can lead to ongoing damage.

You can’t typically repair sagging, rotted, or warped window frames. Contact a professional for advice on whether you should repair or replace your window.

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Benefits of Replacing Old Windows

Replacing your windows can increase your property value, improve your home’s appearance, and make your interior space more comfortable. Read about additional benefits below.

• Better comfort: Old windows are drafty, which can make your home hot in the summer and cold in the winter. Replacing your windows makes your home more comfortable. 
• Improved energy efficiency: Windows that are old or damaged let outdoor air in and temperature-controlled air out, which makes your heating and cooling systems have to work harder. Replacing the old windows in your home with energy-efficient new ones can lower your energy bills. 
• Increased property value: Replacing your windows improves your home’s appearance and makes your home more functional, which increases your home’s value.
• Noise reduction: New windows feature improved insulation and double or triple panes. Window replacement can dampen sounds such as traffic and loud neighbors. 
• Upgraded appearance: Replacing your windows can improve your home’s appearance inside and out. 

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Considerations for Choosing Replacement Windows

Consider aesthetic appeal, functional benefits, durability, and cost when deciding which types of windows are right for you. Read more below.

• Aesthetics: Consider your home’s architectural style and color palette when choosing replacement windows. Remember that windows have long lifespans, so pick a style that will stand the test of time.
• Cost: Your budget will dictate which types of windows you can afford, but it shouldn’t be the only determinant.
• Energy efficiency: Energy-efficient windows can improve your home’s ability to insulate and reduce energy costs. Ask about energy efficiency ratings for different window types before you make your choice.
• Installation requirements: Installing windows as part of a do-it-yourself task can help you cut costs, but it’s not an option for all window types.
• Material choices: Modern window frames are available in a variety of materials. Consider available styles, maintenance requirements, costs, and your climate when choosing what’s best for your home. 

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Extending the Life of Your Windows

You can extend the life of your new window if you care for it properly. Consider the strategies below.

Regular Maintenance Tips

Clean your windows and frames regularly to prevent dirt and debris buildup. Reapply paint or sealant on wood windows as needed to protect against moisture damage. Replace weatherstripping to maintain a tight seal. These simple tasks can add years to the life of your windows.

Professional Inspections

Hire a professional to inspect your windows every few years. A professional can identify potential issues and recommend repairs that can prevent more significant problems. Professional inspections are especially important for older homes or after extreme weather events.

Upgrading Features

Consider upgrading certain features of your windows to make them more durable and improve how well they perform. Replacing old weatherstripping and seals can prevent drafts and moisture intrusion, for example, and upgrading to double-glazed or triple-glazed glass can improve insulation, reduce noise, and protect interiors from harmful UV rays. Updating hardware, such as locks and handles, can make your windows more secure and easier to use.

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The Impact of Window Age on Home Value

The age of your windows and they condition they’re in can change how valuable your house is.

Energy Efficiency and Utility Costs

Energy-efficient windows reduce energy bills and improve indoor comfort. Potential buyers respond favorably to updated windows, as these can save money.

Curb Appeal and Resale Value

New windows can dramatically enhance your home’s appearance inside and out. Increased curb appeal can increase your property’s value and make it more attractive to potential buyers. Potential buyers also see new windows as proof that you take good care of your home, which can lead to a higher resale value.

Market Competitiveness

Having well-maintained, energy-efficient windows can make your property more appealing to buyers in a competitive market. Buyers often prioritize homes that require minimal immediate upgrades, and modern windows can be significant selling points. This can mean a quicker sale and a higher selling price.

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FAQ About How Long Windows Last

Can windows last 50 years?

Windows can last up to 50 years if you take care of them properly. This can vary depending on what they’re made of.

How can I extend the lifespan of my windows?

Extend the lifespan of your windows by using caulking, weatherstripping, and insulation. You should also seal gaps and cracks to prevent air from entering and causing damage to the frames. Clean your windows routinely, too, and replace broken hardware immediately.

How often should I replace my windows?

How frequently you replace windows depends on the level of wear or damage they sustain. They can last between 15–50 years, and you should replace them if you notice they’re not performing correctly.

Is it better to replace all windows at once?

Replacing all windows at once allows you to take advantage of bulk purchase discounts. Newer windows are more energy efficient and have updates styles.

What are the signs that my windows need to be replaced?

Signs that your windows need replacement include condensation between panes, difficulty opening or closing windows, drafts, high energy bills, or warped or rotted frames.

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