Stubborn Leaking Window? 5 Things You Should Know
A leaking window might seem like a small problem, but left unaddressed, it can lead to serious water damage, mold growth, and costly repairs. A window leak is something you don’t want to ignore.
The good news? If caught early, a window leaking can be fixed before any major damage is done to your house. From poor installation to aging materials, different factors can contribute to leaks. Knowing what to look for is the first step in how to repair a leaking window.
In this guide, we’ll break down how to detect a window leak, how to repair a leaking window, and what you can do to prevent future issues. Keep reading to learn how to protect your home from water damage!
How to Tell if Windows Are Leaking During Heavy Rain
Not all window leaks are obvious, and some can go unnoticed until significant water damage occurs. If you suspect your windows may be leaking, look for these key warning signs:
- Visible Cracks or Gaps: Inspect the window frame, sill, and surrounding trim. If you see cracks, peeling paint, or soft spots on wooden windows, moisture is likely seeping in.
- Difficulty Opening or Closing the Window: If your window sticks, jams, or shifts, it may have warped due to water damage—allowing leaks to form.
- Deteriorating Caulk or Exterior Trim: Check the caulking and siding around the window. If caulk is cracked, missing, or peeling, water may be entering through these gaps.
- Soft or Discolored Drywall Near the Window: Look closely at your interior walls, trim, and windowsills. Peeling wallpaper, bubbling paint, or slight discoloration can indicate moisture buildup.
- Rotting or Mold Growth: Mold or mildew on or near the window frame means persistent moisture issues—a strong sign of a leaking window during heavy rain.
If you notice any of these signs, your window is likely leaking and requires immediate attention! Need help ASAP? Contact us today for timely assistance from one of our professional exterior specialists:
Contact Exterior Specialist Today
A window leak is usually caused by one of two major issues:
- Poor Installation: If the window wasn’t properly flashed or sealed, water can get trapped at the bottom corners, leading to rotting wall panels and long-term damage.
- Low-Quality Windows: Cheap windows may not withstand heavy rain and wind-driven moisture, allowing water to seep through the frame itself.
Even high-quality windows can leak over time, but proper installation and flashing are critical to preventing future problems. If your window wasn’t installed correctly, leaks will continue until it’s properly repaired or replaced.
How to Repair a Leaking Window
If you suspect a leak, here are quick fixes and long-term solutions for how to repair a leaking window:
Short Term Fixes
- Apply High-Quality Window & Door Sealant: Use a premium exterior-grade caulk to seal any gaps around the window frame and trim. (Tip: Clear sealants work well for a subtle fix.)
- Inspect the Window’s Substructure: If you’re handy, carefully remove siding or exterior trim to check for moisture damage underneath. (For serious structural damage, call a professional!)
Long Term Solutions
- Choose the Right Window Installer: When replacing windows, hire an experienced contractor who understands proper flashing techniques and water management. Always ask for references!
- Invest in High-Quality Windows: Not all windows are created equal. Well-built, durable windows last longer and provide better protection against leaks and energy loss.
Knowing how to repair a leaking window early can prevent thousands of dollars in damage down the road!
Contact Us for Window Leak Repair
Whether your windows are leaking during heavy rain or you’re looking for expert window replacements, we are here to help!
With years of experience in window installation and window leak repairs, we ensure every window is properly sealed, flashed, and installed to prevent future leaks. We know how to repair a leaking window and how to keep it from leaking again in the future.
Don’t let a stubborn window leak compromise your home’s integrity. Our team has the expertise to fix it right the first time. Contact us today for a free window consultation!
