Can You Repair Old Aluminum Windows? A Step-by-Step Guide

Aluminum windows are a popular choice for many homeowners due to their durability, energy efficiency, and low maintenance requirements. However, like any other type of window, aluminum windows can suffer from wear and tear over time, leading to issues such as cracked or broken glass, damaged seals, and malfunctioning hardware. While it may seem daunting, the good news is that you can often repair old aluminum windows and restore them to their former glory.

Assessing the Damage

The first step in repairing an old aluminum window is to assess the extent of the damage. This will help you determine the best course of action and the materials you’ll need to complete the repair. Common issues with aluminum windows include:

• Cracked or broken glass
• Damaged seals and weather-stripping
• Warped or dented frames
• Malfunctioning hardware, such as locks, hinges, or handles

To assess the damage, carefully inspect the window from top to bottom, looking for any visible signs of wear or damage. If the glass is cracked or broken, you’ll need to replace it. If the seals or weather-stripping are worn or damaged, you’ll need to replace them. If the frame is warped or dented, you may be able to repair it, but in some cases, you may need to replace the entire window.

Repairing Cracked or Broken Glass

One of the most common issues with aluminum windows is cracked or broken glass. Fortunately, this is a relatively straightforward repair that you can often do yourself. Here’s how to do it:

1. Carefully remove the broken glass from the frame, taking care not to cut yourself on any sharp edges.
2. Measure the opening and purchase a replacement glass pane that is the same size.
3. Apply a thin layer of glazing compound or sealant to the frame, and gently press the new glass pane into place.
4. Secure the glass in place with glazing points or clips.
5. Apply a fresh bead of caulk around the edges of the glass to seal it in place.

If the frame is damaged or the glass is particularly large or heavy, you may want to consider hiring a professional to handle the repair.

Repairing Damaged Seals and Weather-Stripping

Over time, the seals and weather-stripping on aluminum windows can become worn or damaged, leading to drafts and decreased energy efficiency. Fortunately, this is a relatively easy repair that you can often do yourself. Here’s how to do it:

1. Carefully remove the old seals and weather-stripping from the window frame.
2. Clean the frame thoroughly to remove any dirt or debris.
3. Measure the frame and purchase new seals and weather-stripping that are the correct size.
4. Apply a thin layer of sealant or adhesive to the frame, and press the new seals and weather-stripping into place.
5. Ensure that the new seals and weather-stripping are securely in place and create a tight seal.

If the seals and weather-stripping are particularly worn or damaged, you may need to replace the entire window to ensure proper sealing and energy efficiency.

Repairing Warped or Dented Frames

If the aluminum frame of your window is warped or dented, you may be able to repair it yourself, depending on the extent of the damage. Here’s how to do it:

1. Carefully inspect the frame to assess the extent of the damage.
2. If the damage is minor, you may be able to use a small amount of aluminum repair putty to fill in the dents or warped areas.
3. Once the putty is dry, sand it down to create a smooth surface.
4. Apply a matching paint or finish to the repaired area to blend it in with the rest of the frame.

If the damage to the frame is more extensive, you may need to replace the entire window. In some cases, you may be able to have the frame professionally repaired, but this can be a more expensive option.

Addressing Malfunctioning Hardware

Another common issue with old aluminum windows is malfunctioning hardware, such as locks, hinges, or handles. Fortunately, this is often a relatively easy repair that you can do yourself. Here’s how to do it:

1. Carefully inspect the hardware to identify the issue, such as a stuck lock or a loose hinge.
2. If the hardware is simply stuck or dirty, you may be able to clean and lubricate it to restore proper function.
3. If the hardware is worn or damaged, you’ll need to replace it with new parts that are compatible with your aluminum window.
4. Carefully remove the old hardware and install the new parts, following the manufacturer’s instructions.
5. Test the new hardware to ensure it’s functioning properly.

If you’re not comfortable working with the hardware on your aluminum windows, you may want to consider hiring a professional to handle the repair.