How Long Do Windows Last? 8 Signs It’s Time to Replace Them

Jul 31, 2025 | Rusco Windows & Doors, Storm Damage, Window Care, Window Replacement, Windows

Home » How Long Do Windows Last? 8 Signs It’s Time to Replace Them

Between sifting through the seemingly endless number of window options and determining what contractor to partner with, knowing when to replace windows, or even just the answer to “how long do windows last?”, can be overwhelming.

Windows are designed to last for decades, but if they’ve been damaged due to improper installation, weather, or mold, you may need to replace them earlier. Read on to learn more about when to replace a window and how long windows last.

Curious what new windows could do for your home? Reach out to our team for a free quote.

Visible damage on a residential wood window

What is the Average Lifespan of Windows?

In general, window life expectancy is anywhere from 15-30 years, but there are many factors that can affect this. For instance, humid or stormy climates will affect the life expectancy of windows more than dry and temperate weather system will.

Here’s more information about how window lifespan can be affected by the material of the window itself:

  • Vinyl Windows: Vinyl windows are budget-friendly, low-maintenance, and popular with homeowners. Another perk? These windows often last for anywhere from 20-25 years.
  • Wood Windows: Wood windows are beautiful additions to any home, but they require the right maintenance to ensure they last for their 15-20 years.
  • Fiberglass Windows: These windows, while a bit more expensive to install, are among the longest-lasting windows out there. Fiberglass window lifespan ranges from 30-40 years.
  • Aluminum Windows: Aluminum windows often last for 20-25 years, but these aren’t good options for humid or wet climates, as the metal can easily corrode.

How Often Should Windows Be Replaced?

So, how often should you replace windows? Most contractors recommend that you replace your home’s windows every 15-20 years to ensure that your home stays protected from the elements and that your energy bills don’t increase from gaps or cracks.

Even though most windows last for 15-20 years, some well-maintained windows might need replacing before then. This is why knowing when to replace your windows can help you avoid higher costs or potential damage in the long run.

What Affects the Life of a Window?

Learning how to know if you need new windows is the first step toward protecting your home. Here are some of the main factors that affect the lifespan of windows:

  • Material Type: Vinyl and fiberglass windows often last longer than wood or aluminum windows.
  • Installation Quality: Poor installation can easily decrease how long your home’s windows last.
  • Maintenance Routine: Engaging in regular maintenance for your windows is imperative to help them last longer.
  • Climate Conditions: Humid or unpredictable weather can deteriorate the conditions of your windows much faster than dry or temperate conditions.
  • UV Exposure: UV exposure can cause fading and discoloration of the window itself, leading to aesthetic and sealing issues.
  • Storm or Water Damage: Water and storm damage can quickly cause damage to your windows by creating cracks, dents, sealing problems, and mold.

Rusco’s windows and doors are guaranteed to protect your home from mold, weather damage, and more. Reach out for a free quote today!

inforgraphic of signs your window may need replacement

8 Clear Signs You Need New Windows

Aging or failing windows often show clear signs that it may be time to replace them. These signs can range from performance-related struggles, like drafts, to more visible issues, such as mold or water damage.

Some of the most common reasons to replace windows in your home include:

1. Drafts or Air Leaks Near the Frame

Drafts or air leaks often occur due to time-related wear and tear. If you notice your HVAC system having to work harder than normal to keep your home the right temperature, it may be time to consider new windows.

2. Difficulty Opening or Closing Windows

Struggling to open or close your window, either due to sticking, jamming, or needing extra force, is often a clear indication you need new windows, as these issues can quickly worsen over time. These signs can arise due to frame warping, foundational shifting, or rusting hardware.

3. Condensation Between Glass Panes

If you have condensation or fog building up on the inside of your windows between the panes, this is a clear sign that the insulating seal is broken. Unfortunately, if this seal is broken, it often means you need to do a full window replacement, as the window and existing structure can quickly develop mold or other damage.

4. Rising Energy Bills

Older or inefficient windows can quickly cause your energy bills to increase by allowing either the heat or cold to escape. If your energy bills have been steadily rising over the past few months, your windows may be the issue.

5. Visible Water Damage or Rot

Soft wood around the frame, bubbling paint, or mildew near your windows often points to long-term moisture damage. Not only can this affect the efficacy and aesthetic of your windows, but it can even lead to structural damage in the surrounding areas, which can quickly require costlier repairs.

6. Outside Noise Seems Louder

Does it suddenly seem like traffic or your neighbors are getting louder? This can be a sign that the insulation of your windows has failed or that you simply have older windows. Investing in newer double- or triple-paned windows means you’ll have better soundproofing from the outside.

7. Aesthetic Damage or Outdated Style

One of the most straightforward signs that point towards needing new windows is that you simply don’t like how the old ones look anymore. If you have outdated, cracked, or faded windows, these can hurt curb appeal and home value as well.

8. You’ve Had the Same Windows for 20+ Years

If your home has had the same windows for over 20 years, especially if regular maintenance hasn’t been done, this alone should be a reason for investing in new windows. With new and improved technology and energy efficiency standards, your home will immediately see the difference of new windows.

When should you replace your windows, doors, or roof? Our team at Rusco can help you determine the best path forward so your home stays protected.

What to Know When Replacing Windows

When you start planning your window replacement project, it’s important to consider multiple factors, such as energy efficiency ratings, the material the window is made of, and the difference between full-frame and insert replacement.

Thankfully, you don’t have to do this alone. Working with local experts, such as those at Rusco in the greater Chicago area, can help you figure out the best choice for your home without breaking the bank.

Trust Rusco for Window Replacement in the Western Suburbs of Chicago

Have you been thinking it’s time to replace your windows? No matter if you’ve noticed regular wear and tear or other issues like drafts, our team at Rusco is here to help. We’ve been serving the Chicago area for years and only work with the best window brands, meaning your home will stay protected for decades to come.

Reach out to our team today to get a free quote and learn more about our window, door, and roofing options.

Contact Rusco Windows & Doors to Learn More

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