Window leaks during rain are often the result of poor window installation or improper home construction, so, as a homeowner, stay on the lookout for water damage and warning signs to prevent costly future repairs. Read on to find out what those warnings signs could be and what to do if you spot any.
Inspect the gasket or seal between the glass and the frame for any damage or tears that could let water in. Also, check the weep holes in the bottom of metal or vinyl frames — these small openings are designed to let moisture out, but they can get clogged with dirt or debris and back up, allowing water to leak in.
Clogged gutters
If your window leaks from the top when it rains, this may be due to a problem with your gutters – not your window itself. A clogged gutter can cause a stream of water to run down the face of your home, which can work its way through the tops of your windows.
Heavy rain and windy conditions can whip around debris and shatter ordinary windows. For extra protection during storms, rely on Quality Window & Door to install impact glass or storm windows.
It can cause extensive damage, particularly in large structures with open corridors, as rain can penetrate the building's façade. Additionally, wind-driven rain can cause electrical issues, ceiling and drywall damage, and mold growth in wet areas.
Rain can hinder a window and door installation project. Most reputable contractors will not install windows during the rain as the moisture can become trapped and cause your home damage down the line. Once the rainy conditions have subsided, the installation can continue.
Window Leak Repair Cost
It costs around $100 – $600 on average to fix a window leak. The exact cost depends on the cause, type of window and extent of the problem.
Window well covers & Window wells
The easiest way to keep your window well drain unclogged is by installing a quality window well cover. It will prevent excessive water, debris, and even small animals from getting into your window well and causing problems.
Windows leaking at the bottom corner of the frame or around the sill typically indicates cracked caulking or worn-out seals. You can easily fix the problem by replacing the caulk or seal. As long as you repair them quickly, you can prevent additional damage.
In the early morning during summer, you can see condensation appear on the outside of the window. This means that the air temperature outside is humid and warming quickly, but the glass is still cold. This is perfectly normal and will clear quickly as the sun warms the glass.
Check the exterior caulking around doors and windows, and see whether exterior storm doors and primary doors seal tightly. Inspect windows and doors for air leaks. See if you can rattle them, since movement means possible air leaks. If you can see daylight around a door or window frame, then the door or window leaks.
The soil around the foundation can become saturated after periods of heavy rain or snow. Water from the surrounding soil pushes against the walls of the foundation, eventually finding its way in.
You've likely experienced a roof leak during heavy rain if you haven't conducted proper maintenance. Leaves and debris build-up in your valleys or around chimneys, skylights or any other penetrations can create water dams, allowing water to back up in heavy rains.
Sealing the windows in the rain is more difficult. That's because the silicone in the sealant needs to dry out before you can fully set it. As such, one way to get around this is to split the load by completing the initial fitting in poor conditions but waiting to seal it fully.
It's common and normal to see water dripping from the exterior side of a window AC unit, but water leaking on the interior side is not normal.
Clean the window frame and surrounding area thoroughly to seal a leaking window. Apply a bead of high-quality caulk along the edges of the window frame, filling any gaps or cracks. Smooth the caulk with a caulking tool or your finger. Allow it to dry completely before testing for leaks.
Fixing a Leaking Window Well
The best way to do that is to have a Groundworks professional assess your basement and windows to identify the most likely cause of the leak.
A lack of sufficient overhang or improper angles on your window sills could actually direct water toward your window. Additionally, if the fascia board above your window is angled inward, it could also direct water towards your windows. These are common reasons your window leaks when it rains.
The answer is not as simple as you may think, in most cases, homeowners are not covered for water leaks caused by windows. Insurance policies differ, many insurance companies will only cover and pay for the “ensuing damage” caused by the leaking windows, but will not pay for the actual repair of the window itself.
Temporary Fix #1: Caulking and Sealants
Silicone-based caulks are preferred for their flexibility and water resistance. Identify the source of the leak, clean the area thoroughly to remove any debris or old caulk, and apply the new sealant.
With broken window seals, repair is not possible and the best bet is to take out and replace the double pane insulated glass. This foggy window repair technique involves leaving the window unit in its place and having the old glass removed and replaced.
When to Replace Your Windows. Home windows have a lifespan of 15-20 years. Once they reach this age, the seals start to weaken or fail, which leaves you open to drafts and water seepage. In addition, single-pane windows were the standard 15+ years ago.
🌧️ We often close the windows as soon as it starts raining, but this is a common mistake. If it's raining during a warm season, open the windows for at least a few minutes. Rain has an oxygenating effect that purifies the air in our homes, bringing in that fresh "rain smell" we all enjoy.
In colder climates, it is generally more efficient to install windows from the inside to be sealed against the cold air. However, installing windows from the outside is more common in warmer temperatures, as it allows for better airflow and cooling.