How Long Do Windows Last?

The average lifespan of windows ranges from 15 to 20 years, but they can last up to 50 years when carefully maintained. These openings naturally degrade due to normal wear and tear, but there are several other factors impacting their longevity and durability. 

Let’s take a look at those factors and the signs it’s time to replace windows. 

Factors Affecting the Lifespan of Windows

How long are windows good for? This depends on their materials, the local climate, and maintenance, among others. Not all window types have the same lifespan due to the following factors: 

Window Material Quality

Window frame materials don’t just determine insulation and costs—they also tell how long windows can last. There are four main types of material for window frames:

• Vinyl Windows – This window material can last up to 40 years. It’s low maintenance, great for insulation, and requires mechanical lubrication to stay operable. However, vinyl can warp when exposed to extreme cold and hot temperatures.
• Aluminum Windows – Can last up to 30 to 45 years. They resist corrosion but require insulation to stay energy efficient all year round.
• Wood Windows – Wood windows can last over 20 years when well-maintained. They require regular repainting, resealing, and cleaning to boost energy efficiency. If unmaintained, these windows can rot, warp, or crack. 
• Fibreglass Windows – This window type offers the best durability and can last up to 50 years with little maintenance. 

🪟 Read more: Want to Compare Window Frame Materials? Click Here!

Climate and Weathering

Ontario’s extreme climate affects the lifespan of windows. The sudden changes in temperature cause stress on the window frame and seals, making them brittle and vulnerable to cracking and warping.

Weather conditions also play a part in this; harsh UV rays, strong winds, and high-pressure storms can damage the window frame and seal.

🪟 Read more: How to Weatherproof Windows

Humidity Levels

When window seals are compromised, moisture can seep inside the window frame material and become susceptible to mould growth. This can lead to rotting, warping, or expanding for highly absorbent wood frames. 

Maintenance and Care

Windows can last up to 50 years when maintained properly. Cleaning the frame, lubricating operable parts, and checking window seals regularly will go a long way in prolonging the lifespan of windows. 

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Installation

Having energy-efficient windows is one thing, getting window installation right is another. When done incorrectly, windows’ lifespan is lessened greatly. It leaves the window prone to water infiltration, functional issues, and structural defects. 

That’s why you should choose the right window installers who are professionally trained and qualified for the task. They’ll ensure your windows are installed correctly!

🪟Read more: Top 10 Rated Window Manufacturers in Ontario

8 Signs You Need to Replace Windows 

A window replacement is necessary when your windows have exceeded their lifespan and show visible signs of damage. See the telling signs you need to replace your windows below: 

1. Drafts Occur

If you can feel the air around your windows even when closed, it’s time to get replacement windows. Drafty windows are caused by poor installation, a broken seal, cracks in the caulking, and more.

Temporary solutions like caulking or weatherstripping can help stop air leakage, but the best thing you can do is replace any drafty windows and doors. Not only will drafts cause drastically fluctuating temperatures in your home, but also cause your HVAC system to work extra hard to keep up with the changes, increasing your energy bill.

2. Costly Energy Bills

Older windows lack the insulation and proper fitting necessary to keep your home comfortable. As a result, your heating or air conditioning systems use more energy to meet your needs, costing you a fortune. If you notice that your energy bill has suddenly increased, it’s a sign that you need to replace windows.

🪟Read more: Can Energy-Efficient Windows Help You Save Money? Find Out Here.

3. Condensation Forms

Condensation forming outside the window is fine. But if you notice condensation or frost accumulation inside or between the glass panes, then you can be sure they’re no longer providing the protection they should. This happens when moisture droplets travel into the seal gaps and form fog between the panes—something you can’t easily fix.

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4. You Can Hear Outside Noise

You shouldn’t hear outside noise after closing your window. When noise leaks inside your home, your windows aren’t providing the acoustic insulation they’re meant to have. Getting replacement windows is the first solution to prevent outside noise pollution from seeping into your home.

5. Aesthetics Are No Longer Pleasing

If your windows are damaged or not meeting your standards, they can ruin your home’s curb appeal. Address this issue by replacing windows and customizing them to your style. Manufacturers produce chic, modern windows that are built to last long and make homes more energy efficient.

6. Damage Is Visible

Replace your windows once you’ve noticed visible damage on window frames. Chipping, water stains or any other signs of deterioration on or around the window means they may no longer be effective. Cracked or warped frames are a lost cause since there’s no other way to repair them than to replace them. 

7. Hard to Operate

Opening and closing windows shouldn’t be difficult; they should swing smoothly without making any sound. If you can’t close your windows properly, you’re compromising the safety of your home as you won’t be able to lock them—a dead giveaway you need to replace your windows.

Incorrect installation is one of the most common causes of window inoperability. This leads to balancing issues, making the windows hard to move. Rusting or rotting can also be a reason for inoperability, especially with wooden windows.

8. You Still Have Single Pane Glass

Single-pane glass is extremely common in older homes. Homes built before 1970 have a good chance of still having their original windows with single-pane glass.

Today’s standard is the double and triple pane windows; they’re more energy efficient and offer greater protection from the sun’s rays. If you’ve noticed that your window treatments, furniture and walls have started to fade due to UV rays, modern replacement windows are the best solution.

Find a Window Replacement Company in Ontario Today 

Now you know when to replace windows, it’s time to look for reliable window replacement companies. Ontario Window Reviews is the best place to look for and compare window companies in Ontario.

We have a list of window companies in Ontario that manufacture and install energy-efficient windows. Countless customers have left honest reviews on our page to help you and other homeowners make the best home improvement decisions.

Still have questions related to how long do windows last? Send us a message.

Frequently Asked Questions 

How Often Do Windows Need to Be Replaced?

Upgrade your windows around the 15 to 20-year mark. At this point, structural issues may begin and the efficiency of your windows may have started to degrade.

Is It Better to Replace All Windows at Once?

It’s best to replace windows at once since the installation process may take several weeks, though it’s more expensive. If you install piece-by-piece, your replacement window project may fit your budget better but take longer than expected.

If cost is an issue, partner with window manufacturers that offer financing solutions that fit your budget.

How Do You Know When It’s Time to Replace Your Windows?

If your windows are way past their expected lifespan, drafty, hard to operate, and have condensation, it’s time to replace them.