Even though the snow has stopped snowing and the flowers have started growing, it doesn’t mean we are out of the woods yet in terms of precipitation! The spring will bring a lot of rain and wind to your area, and although they will make the earth look beautiful after the rain has stopped, it may cause damage to your windows and the structure of your home.

After everytime it rains this spring season, you should quickly inspect the areas around your windows to see if you find any leaks. Finding leaky problems in your windows early on will make it a lot easier to fix and to prevent the water from doing any further damage.

Why Do Windows Leak?

The most common leaks are due to aging homes that have been exposed to various weather conditions every single year which results in the windows to lose their air and water tightness. Although older windows are at most risk of leaking water, newer windows can also be at risk for leakage. The three common ways that windows leak are the house design, maintenance, and improper installation.

Installation: If your windows were poorly installed, there could be a break in the flashing that will allow water to find its way through to your home. Also, if you have used a house wrap or building paper rather than a window flashing, you are at risk of water seeping through the paper and ruining the area around your window.

Maintenance: If you don’t properly maintain your windows and frames, you will be at a higher risk of getting water damage due to rain and snow. This includes not repairing or replacing caulking or glazing putty that is cracked and damaged. You should also keep an eye on the paint seal as it creates a tight seal between the window moulding and the glass.

House Design: Sometimes old homes were built with no overhangs that can properly drain the water off the roof. Some houses will also feature poorly angled fascia boards that don’t angle the rain away from the windows.

How to Identify Where the Leak is Coming from

If you notice that your windows are leaking, the first thing you need to do is figure out where the leak is coming from. If you notice water on the wall either above or below your window, it’s a good sign that there is an opening in your wall. The problem with this kind of leak is that it’s not necessarily because of your window, so you might have to do further repairs to fix the hole in your wall. These types of leaks are mostly found in older homes and you may need to remove the window altogether to find the root of the problem.

If you suspect that the windows are causing the leak, you will notice a leak where the window sash meets the jamb or on the window frame.

How Can You Fix Window Leaks?

Depending on the type of leak you have, you may be able to fix a leak by doing one of the following steps:

  • Replace old caulking.
  • Re-seal glass to the gasket using a silicone caulk.
  • Angle the frame at the bottom of the window down so the water drains towards the exterior of your home.


All credit goes to Millennium Windows & Doors Renovation