
Resource Article
7 Signs You May Need to Replace Your Windows
Key Takeaways:
- Damaged, drafty, or hard-to-operate windows are common signs you may need to replace them.
- Underperforming windows may be costing you more than you realize.
- Discover how replacing your windows can help save you money on energy bills.
If you're wondering whether it's time to replace your windows, you're not alone. Many homeowners face a difficult choice when it comes to their windows. They're not sure if they need new ones or if their current windows are doing their job effectively. Fortunately, the signs that it's time for window replacement are easier to recognize than you might think.
The right windows can do wonders for your home. They can increase ventilation, help insulate your home, enhance sound abatement, and even help save you money on your utility bills. Of course, you also want windows that are attractive, durable, and keep your home comfortable. It’s worth taking a moment to assess your windows to see if they’re holding up or if it’s time to make an upgrade.
Here are seven signs that you may need to replace your windows.
1. Damaged Windows
If they’re damaged beyond repair, consider window replacement. Whether a baseball shattered the glass or there’s another issue that isn’t covered under warranty, damaged windows can lead to more problems and unexpected costs if left unrepaired.
Exposure to the elements can cause additional damage to the window frame and surrounding areas. Don't wait for the problem to worsen.
2. Drafts or Window Leaks
Your windows should help keep the elements outside where they belong. If you have drafty windows or notice leaks around them, it's a sign that your windows aren’t doing their job. Inspect the frames for any signs of damage or rot caused by insects or moisture.
Softness, cracking, or other signs of wear indicate that the windows need immediate replacement. Ignoring these minor issues can lead to expensive disasters for your home's foundation. Invest in windows that will stand the test of time, like our Acclaim® windows, made from Fibrex® composite material that has been tested to withstand extreme weather conditions.
Our 30-year durability study shows how well our Fibrex composite material can hold up against Mother Nature. Renewal by Andersen recently conducted a study on windows that were in a home for 30 years, and found that Fibrex® composite material still performs just as well as it did three decades ago.*
3. Uneven Temperatures and Higher Energy Bills
Are you constantly adjusting your air conditioning or heating, but still not reaching the desired temperature in your home? If you're feeling hot in the summer or cold in the winter, check your windows. Whether you choose Renewal by Andersen or another company, replacement windows can help you save money on your energy bills.
Our High-Performance Low-E4® SmartSun™ glass is 70% more energy efficient in the summer and 49% more energy efficient in the winter compared to ordinary double-pane glass.**

Single-pane windows
Windows with single-pane glass are less energy efficient than double-pane glass, especially in harsh hot or cold climates. Replacement windows with double- or triple-pane glass can help improve your window’s insulation, which helps keep your home warm in the winter and cool in the summer.
Consider how different types of window glass can make a difference, whether you live in a warm, cold, or moderate climate. Replacing old single-pane windows with ENERGY STAR® certified windows can lower energy bills by an average of up to 13% nationwide.
4. Outdated Windows
While looks aren’t everything, outdated windows can be unsafe. If you're living in an older home, you may need larger windows to comply with egress code requirements. Upgrading to larger windows helps provide egress in the event of a fire and enhances natural light and curb appeal.
5. Hard to Open and Close Windows
Windows can become hard to open and close because of dirt and debris in the tracks, warped frames, or damaged hardware. If cleaning the tracks or replacing the hardware doesn’t solve the problem, it may be time for new windows.
Our operable windows are designed for easy cleaning, and our casement windows feature an easy-to-latch lock lever for a weathertight seal. Choose from a variety of hardware options to complement your home's color scheme and your new windows.

6. Noise Pollution
When sound waves reach your windows, they can sneak through gaps around the frame, seal, or sash and into your home. Even a quality window can let in outdoor noise if the glass is thin, or if the window isn’t sealed or installed properly.
Replacement isn’t the only way to reduce noise pollution. Before you replace windows, check for small gaps around the frame and replace the weatherstripping to create a tighter seal.
With the right design and window glass options, you can reduce outdoor noise by replacing your window. Whether it's pedestrians on the sidewalk, cars on the highway, or noisy neighbors, our replacement windows can help you keep your peace and quiet.

7. Wear and Tear
Chipping, worn, water-stained, or simply undesirable windows are a clear indication that it's time for a change. Our design consultants will work with you to customize windows that complement your home's character and meet your needs. Whether you need a larger window opening, a specialty design, or a style update, replacement windows will leave your home looking and feeling better.
What to Expect During Window Replacement
Renewal by Andersen handles all aspects of the window replacement process, including the free in-home consultation, custom manufacturing, service, and limited warranty coverage. Whole-home window replacements are often completed in two to three days, depending on the number of windows, size of the crew, and the complexity of the installation.
When you’re ready, schedule a free in-home consultation with a window replacement company to discuss the best options for your home.
Frequently Asked Questions
Should you replace window all at once or in phases?
Deciding between a whole-home and a phased window replacement project depends on your home, budget, and how long you plan to stay. A phased replacement can have a lower upfront cost and can help you prioritize failing windows first. You could save money if you replace all your windows at once because material and labor costs can rise over time.
What causes a window leak?
Window leaks often happen when the sealant or insulation breaks down, allowing water to pass through. Leaky windows can also be caused by damaged flashing around the frame and aging window materials. In some cases, you can fix a leaky window by recaulking the window or replacing the weatherstripping.
If you choose to replace them, make sure the window warranty covers seal failure, material defects, and long-term performance issues.
What's the best way to pay for new windows?
Paying in cash is the best way to avoid paying interest and financing fees over time. If you’d rather make payments over time, you have options. More than half of our customers finance their window replacement projects through programs offered by their local Renewal by Andersen retailer. However, you can choose between several financing options to fit your budget.
*Values are based on comparison of Renewal by Andersen Insert double-hung window U-Factor to the U-Factor for clear dual pane glass on-metal frame default values from the 2006, 2009, 2012, and 2018 International Energy Conservational Code “Glazed Fenestration” Default Tables.
** Six window units were tested in a Minnesota home 30 years after installation. Visit renewalbyandersen.com for warranty information.
“ENERGY STAR” is a registered trademark of the U.S. Environmental Protection Agency.
Our Hassle-Free Process

Step 1
Design Consultation

Step 2
Measure and Manufacture

Step 3
Installation

Step 4
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