The short answer
How to Spot a Window Leak
Look for water stains on the sill or the wall just below the window. Touch the drywall: if it feels soft or crumbly, water has been soaking in for a while. Peeling paint or bubbling wallpaper near the frame is another clue.
On a rainy day, watch the window from inside. Water may appear as a drip, a steady trickle, or moisture that beads on the glass. Check the floor and baseboard for puddles or dampness, which could mean the leak is running down inside the wall.
Common Causes of Window Leaks
A failed seal around the glass or frame is a frequent culprit. Over time, caulk and weatherstripping dry out, crack, or pull away. A cracked or warped frame can let water in, especially if the window is old or was installed poorly.
Clogged weep holes at the bottom of the frame can trap water, forcing it inside. If the window is in a wall with siding, a gap in the siding or flashing above the window can channel water behind the frame. Each of these needs a different fix.
- Check the caulk around the window frame for cracks or gaps
- Look for damaged or missing weatherstripping
- Clear any dirt or debris from the weep holes
- Inspect the siding and flashing above the window
- Feel the drywall around the window for soft spots
- Note any condensation or frost on the glass
What to Do Right Away
Move furniture and valuables away from the window. Place towels or a bucket to catch drips and reduce water contact with the floor. If the leak is active, turn off any nearby electrical devices and avoid touching wet surfaces.
Open the window to dry the area if the weather allows. Run a fan to circulate air and lower humidity. Do not seal the window or apply caulk while it is wet; the surface needs to be dry for any repair to hold.
When to Call in the Pros
If you cannot find the source or the leak is recurring, it is time to call local water damage pros. They can trace the water path with moisture meters and inspect the wall cavity. They will also handle any drying and structural drying needed to prevent mold.
Water that has soaked into drywall or framing can cause rot and mold if left damp. The pros can remove damaged sections and dry the structure. They may also recommend a window replacement if the frame is beyond repair.
- Water stains spread or grow after each rain
- Drywall feels soft or crumbles when touched
- You see mold or mildew near the window
- The leak returns even after you reseal the window
- You suspect water is traveling inside the wall
- The window is old or the frame is visibly damaged
Preventing Future Window Leaks
Regular maintenance can stop many leaks. Inspect the caulk and weatherstripping twice a year, and replace them when they crack or pull away. Keep the weep holes clear and make sure the window closes tightly.
If you live in Layton, check your window seals after heavy storms or snowmelt. Also, keep the area around the window clear of debris. For a lasting fix, consider a window replacement if the frame is warped or the leak is severe.
Water damage does not wait
Phones are answered 24/7 for Layton and nearby communities.
Call Now (801) 383-0232Frequently asked questions
Can I fix a leaking window myself?
You can reseal caulk or clear weep holes if the leak is simple. But if water has soaked into the wall or you cannot find the source, call the pros. They have the tools to dry the structure and prevent mold.
How long does window leak repair take?
The timeline depends on the cause and the extent of damage. A simple reseal might take an hour, but drying a soaked wall can take days. The pros will assess the situation and explain what is involved.
Will my insurance cover a window leak?
Policies vary, and your insurer decides what is covered. Some leaks from sudden events may be covered, while long-term wear is not. Check your policy and talk to your insurance company about your specific situation.