4 Signs Windows of Leaky: Repair or Replacement

Author: Housing Editors

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Windows play an important role to keep your home comfortable and functional. But over time, windows can experience wear and tear, and this may lead to different problems compromising their performance. You can find below common window issues, including drafts, condensation, difficulty opening or closing, and visible damage.


The information below is part of the Window Repair Guide: Homeowner Resources.


1. Drafts


Drafts are often the first sign of window problems. If you feel a noticeable breeze near your windows, even when they are closed, it indicates gaps or cracks allowing air infiltration. These gaps lead to energy inefficiency, as conditioned air escapes, and cold air enters your home. Drafty windows not only make your living space uncomfortable but also increase your energy bills.


2. Condensation


Condensation occurs when moisture forms on the interior or exterior surface of your windows. While some condensation is normal, excessive or persistent condensation usually indicate an issue. If you notice condensation between the glass panes of double or triple-glazed windows, it suggests a broken seal. This compromised seal diminishes the insulating properties of the window and may require replacement.

Condensation on window glass

Condensation on window interior can be normal when there’s a big temperature difference between indoor and outdoor.


3. Difficulty Opening or Closing


Windows should open and close smoothly without any resistance. If you find it challenging to operate your windows or if they get stuck, it could be a sign of damaged or worn-out hardware, such as hinges, handles, or mechanisms. Ignoring this issue can lead to further damage and potential safety hazards. In such cases, repair or replacement may be necessary.


4. Visible Damage


Visible damage on your windows, such as cracked glass, rotting frames, or warping, is an obvious sign that replacement or repair is needed. Cracked or broken glass compromises the security and energy efficiency of your home. Additionally, decaying frames or warping can lead to air and water leakage, impacting both comfort and structural integrity.

Mildew on wood window frame

Mildew on wood frame is hard to remove if the wood has not been previously protected with a sealant such as varnish.


When you see 1 or more of these signs you may require to repair or replacement the faulty window(s). Simple repairs cab often be done, such as sealing gaps or replacing hardware, to fix minor issues. But, if the problems are bigger or if your windows are older and no longer meet modern efficiency standards, replacement may be the best solution.


If you’re unsure it’s important to consult with professionals to determine the condition of your windows and get expert advice. They can evaluate the extent of the problems, recommend solutions, and help you make better decisions based on your budget and preferences.


When you deal with faulty windows quickly, you can restore energy efficiency, you keep the functionality of your windows, and keep a comfortable living environment. Repairing or replacing window(s) can be a big project but taking action sooner than later will help you have good windows for years to come.