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How to Repair a Window Leak

Window leaks can be attributed to various factors, with several culprits at play. Identifying the root cause of this issue and undertaking essential repairs is of utmost significance. By doing so, not only can exterior harm to the house be prevented, but potential interior damage can also be averted. In this guide, our team of proficient window repair specialists offers insights on rectifying a leaky window, while highlighting three possible causes of such leaks.

Re-Caulk Your Windows

  1. Begin by removing any loose caulking debris and thoroughly clean the window, ensuring that any grease or dirt that might hinder proper adhesion of the caulk is removed.
  2. Choose a dry day with moderate temperature to proceed. Use waterproof caulking as you learn how to fix a leaky window with metal or vinyl details.
  3. Prepare the caulking tube by cutting it at a 45-degree angle using a utility knife. Then, puncture the tip using a 16-d nail and insert the tube into a caulking gun.
  4. Apply a continuous bead of caulk along the joint between the window and its frame.
  5. Smooth the applied caulk by running your fingers along the bead, ensuring there are no bubbles or irregularities.
  6. Repeat the same process on the remaining three sides of the window.
  7. Allow the caulk to dry completely overnight before attempting to paint over it.

Repair Your Window Frames

  1. Begin by identifying the exact location of the window leak so that you can proceed with necessary structural frame repairs.
  2. Enlist the help of an assistant who can spray water on the window while you observe how the leaks trail inside.
  3. Pay attention to whether the water trail travels along the wood, potentially causing drywall issues as it enters.
  4. Utilize a pry bar to carefully remove the trim surrounding the leaking area. This will allow you to inspect the space between the window and the frame and determine if caulking will provide a solution.
  5. If you come across any rotten wood, use a putty knife to remove it. Then, use an epoxy wood filler product to repair the void created by the removal.
  6. Replace any rotten trim that was removed and securely nail it back to the window frame, ensuring proper alignment.
  7. Apply waterproof caulk to each edge of the window, allowing it to dry completely. Once dry, proceed to repaint the window frame for a finished look.

Tools & Materials

  • Sandpaper and rag
  • Window frame paint
  • Caulking product
  • Caulking gun
  • 16-d nails
  • Detergent solution
  • Utility knife
  • Pry bar
  • Epoxy wood filler
  • Hammer

Contact PJ Fitzpatrick If You Need New Windows

If you find yourself dealing with leaky windows that are either aged, damaged beyond repair, or simply unfixable, don’t hesitate to contact PJ Fitzpatrick. We are here to assist you in selecting new windows that will effectively seal your home, safeguarding it against any potential leak damage year-round.

Need help with this project?

We have trained professionals that can help. Contact us today. 1-877-246-4354

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