Leaky windows are a common problem for homeowners. That’s why checking regularly for any signs of window leaks is so important. If you do find a leak, it needs to be addressed immediately to avoid potential water damage or mold growth in your home.
Let’s discuss the signs to look out for, the most common causes of window leaks, and how to repair them.
Table of Contents
Common Signs of a Leaking Window
Water Coming In Around the Window
One of the most telling signs of a leaking window is if there’s water dripping in the panes or near the frame. If this occurs and you are certain that your window is shut tightly, there is most likely a gap that’s letting the water inside.
Foggy Windows
While condensation on glass isn’t necessarily always an indication of a leak, it’s likely the case that the seal has broken if there’s condensation in between the panes of glass.
Mold
Mold thrives in damp areas, so it’s essential to check your windows for black spots. If left unchecked, it can spread to the walls and cause respiratory issues by creating poor air quality in your home.
Musty Odor
When wood is damp, it creates a smell that’s musty and unpleasant. If this odor is coming from your window, it could be from water dripping in through it, which could eventually trigger mold growth.
Discoloration
When water leaks in your window, it can cause discoloration to the frame. Initially, a yellow stain will appear, and then worsen to a brown or copper color if the water leak continues unchecked.
Damage to the Floor
When a leak from your window is neglected, it can start to drip to the floor.
This can cause:
Warping hardwood
Peeling linoleum
Loose tiles
Moldy carpeting
Peeling Paint
If water leaks through your window and into the walls, it can trigger peeling wallpaper or paint. The water weakens the color’s adhesion and forces it to separate from the wall.
Peeled or Damaged Caulk
If the caulk on your window is missing or peeling, moisture and air can infiltrate your home. Make sure to inspect the sealant around your windows regularly to make sure that it’s undamaged.
Sagging Drywall
If your window has a severe leak that is neglected, water could saturate your drywall and cause sagging. This is only in extreme cases where a leak has been ignored. If you do notice sagging drywall, address the leak immediately, or your home’s structure may deteriorate.
The leak from the window may not have started in the glass or frame. It may be triggered by the house’s lack of overhangs that drain water flow off the roof and away from the home. The fascia boards above the window could also be at an incorrect angle, instead of facing outward to control the water away from your house.
Uneven Windows
When your windows are installed, they need to be even to avoid water from accumulating. Check to see if your windows are even with a level.
Poor Installation
It doesn’t matter if you invest in the highest quality windows if they’re not installed correctly. When poorly installed, they can allow water to leak into your home. A common mistake that causes leaks is when a contractor uses a house wrap instead of a window flashing to control water flow.
Improper Seal
Windows are typically sealed with expanding foam. However, if there’s not enough of it used, air channels can develop between the wall and the window and allow water to leak through.
Poor Glass Seal
If you notice leaks between your window’s glass panes, it’s likely that the glass seal has worn out. While this doesn’t necessarily mean that you have water leaking into your home, it’s a sign that your window isn’t as insulated as it used to be.
No Paint Seal
Utilizing a paint seal on your windows is crucial. This can be done by overlapping the paint slightly onto the glass. The paint’s membrane from the frame to the glass creates a seal that protects your window from moisture damage.
How to Repair a Leaky Window
Reapply Caulk
To replace the caulk on your window to prevent leaks, remove the damaged and worn caulk first. Once it’s completely cleaned off, the new caulk can be applied.
Use a Sealant
If your window leak is caused by damaged sealant, you can strip the old sealant off and replace it. Before you reapply your sealant, you need to ensure that the damaged sealant is removed and cleaned thoroughly. Then, the sealant can be replaced in even, consistent strokes.
Window Replacement
The most surefire way to get rid of leaks is to replace your window completely. A high-quality window that’s installed professionally will guarantee that your home will be protected from moisture leaking in.
If your window is leaking and you need an upgrade, NEXT Door & Window is here to help. We provide high-quality windows, like our ultra-durable Marvin and Infinity From Marvin collections. Windows from Infinity From Marvin are fashioned with Ultrex® fiberglass, which is 8x stronger than vinyl, and provides Low-E coated glass that boosts energy efficiency.
We are famous throughout the Madison and Chicagoland areas for our stop-of-the-line products, incomparable customer service, and our consistent results that always exceed expectations. All of our customers are offered a red carpet experience that ensures you stay updated about your window upgrades with your personal project manager.
At NEXT Door & Window, we are proud of our:
Custom Factory Paint And Stain Before Installation
An A+ BBB Rating
Experienced Technicians
Top-Quality Products
Exceptional Service
Say goodbye to leaks and say hello to increased energy efficiency, curb appeal, and home value.
