Do Windows With Broken Seals Need to Be Replaced?

The state of your windows can truly make or break your home’s look. But failing windows aren’t just unsightly—a broken window seal can cause fogginess and drafts, making your home more difficult (and more expensive) to heat and cool. But do windows with broken seals always need to be replaced, or is it possible to repair a broken window seal instead? Each solution has its time and place. Here, we explain the pros and cons of window seal repair versus window replacement.

Is It Worth It To Repair a Window Seal?

Deciding whether to repair your window seal or replace your window can be a tricky decision. Here are a few factors to consider.

Pros and Cons of Repairing a Window Seal

If you’re dealing with drafty or foggy windows, repairing a window seal might seem better than a full replacement. But is this actually true? Check out the pros and cons of repairing a broken window seal:

Pros

• Lower cost: Window repair costs are more affordable than full-on window replacement costs. For instance, a broken window seal repair costs between $70 and $245, which is quite a savings compared to new window installation ($300 to $2,500 per window).

• Better repair options: You don’t have to replace the entire window frame if your seal fails. In many cases, you can just replace the insulated glass unit (IGU)—the sealed panes—while keeping the existing frame. If you aren’t handy around the house, hire a local window repair company to tackle the job.

• Matching windows: If one or two windows have a broken seal, replacing them potentially means a house with unmatching windows. By repairing existing windows rather than installing a few new ones, you can maintain a singular aesthetic throughout your home.

Cons

• Not as energy efficient: Many newer windows are treated with Low-E (low emissions) coatings and argon gas to make them much more energy-efficient. While repairing the seal on an old window will certainly help with energy efficiency, it’s no match for newly installed energy-efficient windows.

• Not suitable for major damage: If your failing window seal affects the entire frame, a replacement could be a better long-term solution, especially since a broken or rotting frame makes a perfect airtight seal almost impossible.

When Should I Replace a Window Seal?

If your window seals are seriously damaged or you notice a substantial air leak, it’s probably better to replace them. You’ll know it’s time for replacement if you can feel a major draft and cold air leaking in all the time. Try replacing your window seals after attempting repairs, but before completely replacing your windows—you could end up saving yourself a bunch of money. 

Pros and Cons of Replacing Windows

If you have failing window seals, it might make more sense to replace the windows entirely. After all, windows don’t last forever—you’ll need to get new ones eventually. But how do you know if now is the right time to replace your windows? Let’s look at the pros and cons of window replacement.

Pros

• Updated technologies: If you haven’t replaced your windows in a while, then looking into some of the newer options, including triple-pane and Low-E glass, may be worthwhile. Newer windows are often easier to operate, offer more security, and block out unwanted noises much better than older windows.

• Better energy efficiency: Today’s windows offer greater energy efficiency than ever before. While you may pay more for the high energy rating, you can save hundreds each year in energy costs.

• Higher ROI: Replacing your house’s windows is one of the highest-ROI home improvements you can make. When you sell your house, potential home buyers may be more likely to make an offer—and for a higher amount—if they see you’ve recently upgraded windows. Alternatively, old, inefficient windows may make it harder to get any offers from prospective buyers.

Cons

• Price: Though a replacement window might offer more options and better energy efficiency, you can expect to pay more for these advantages. On average, window replacement costs between $300 and $2,500 per window.

• Matching: If you have an older home, you might have trouble finding new replacement windows to match your existing ones. You’ll either have to live with the mismatch or spring for a whole-house window makeover.

• Permits: Depending on your town’s laws and regulations, you might need permits for your new windows. Among the issues you’ll likely need to address in your application is ensuring your replacement windows meet your town’s egress window codes and pass the lead paint safety test.

When Should I Replace a Window?

Deciding whether it’s time for a window replacement? You’ll probably need to replace your windows in these situations:

• You have a draft that isn’t fixed by new seals.

• Your energy bills seem high, and there are no other obvious causes.

• Your windows have serious damage.

• Your windows won’t open or close correctly.

• Your window is constantly foggy.

• Water always seeps in through the windows.

The Takeaway

When your windows suddenly turn foggy and drafty, your first impulse might be to panic. But don’t despair! You may be able to salvage your existing windows without spending too much money. Work with a trusted window installation company near you to figure out if your current window seal can be fixed or if it’s time for a new window.

If you're looking for a shorter-term and more budget-friendly solution, repair may be the best option. But if you’re looking for a more permanent fix with higher-end options, replacement may be the right call.