How Do I Know If My Window Leaks During Storms?
Last updated October 28, 2026
The short answer
Signs to Watch For
During a storm, stand near your windows and look for water dripping or pooling on the sill. Also check the wall below the window for dark spots, peeling paint, or dampness. These clues often mean water is getting in around the frame.
After the storm passes, inspect the window frame and the surrounding drywall for stains or warping. Pay attention to any musty smell, which can signal hidden moisture. If you notice these signs, you likely have a leak that needs attention.
Check the Seal and Frame
Look at the caulk and weatherstripping around the window. Cracks, gaps, or missing sections can let rain in. Run your finger along the frame to feel for rough spots or openings. If the seal looks worn, it may be time for repairs.
Also check the window itself. A warped or damaged frame can cause poor fit. If the window is old, the seal may have failed. In that case, window replacement might be the practical option.
- Water stains on the sill
- Damp drywall near the window
- Peeling paint or bubbling
- Cracked or missing caulk
- Drafty feel around the frame
- Musty odor after rain
Act Fast to Limit Damage
If you find a leak, move furniture and valuables away from the area. Put towels or a bucket under the drip to catch water. The sooner you dry the spot, the less chance mold has to grow.
For a quick assessment, take photos and note where the water enters. That information helps the pros pinpoint the leak source. Acting quickly can save you from more extensive repairs later.
When to Call the Pros
Not every leak is easy to spot. Sometimes water travels along the frame or through the wall, showing up far from the window. If you cannot find the entry point, a professional inspection can help.
Local water damage pros use tools to detect hidden moisture and trace the path of the leak. They can also advise on whether a simple seal repair is enough or if the window needs replacement. Their work usually includes drying and dehumidifying to prevent secondary issues.
Policies vary, and your insurer decides what is covered.
Prevent Future Leaks
After fixing the current leak, keep an eye on the window during the next storm. Regular maintenance, like reapplying caulk or replacing weatherstripping, can stop leaks before they start. In wet winter climates, checking your windows before the rainy season is a smart habit.
If your window is older or the frame is rotting, replacement may be the more durable fix. New windows often come with better seals and insulation. A professional can help you decide based on the condition of your window and the extent of the damage.
- Inspect seals twice a year
- Clean the weep holes
- Trim back branches that touch the window
- Keep gutters clear to avoid overflow
- Apply fresh caulk when old seal cracks
Need help right now?
Phones are answered 24/7 for Redmond and nearby communities.
Call Now (425) 407-5186Frequently asked questions
What should I do if I see water on the sill?
Dry it immediately and check for cracks in the caulk or weatherstripping. If the leak continues, place a towel to catch water and call the pros for a thorough inspection. Quick action helps prevent mold and structural damage.
Can I fix a window leak myself?
You can reseal small gaps with fresh caulk, but if the leak persists or the frame is damaged, professional help is safer. The pros can find the true source and ensure the repair lasts. DIY fixes may not solve hidden problems.
Does a window leak always mean the window needs replacing?
No. Sometimes a simple seal repair or weatherstripping replacement solves the problem. If the frame is rotting or the window is warped, replacement might be necessary. A professional inspection can tell you which option fits your situation.