Aluminium Window Repair

Aluminium Window Repair: A Comprehensive Guide

Aluminium windows are a popular choice among homeowners due to their durability, low maintenance requirements, and sleek appearance. However, just like any other window type, they can suffer from wear and tear, damage, or malfunction over time. In these cases, aluminium window repair becomes a necessity to restore your window’s functionality and aesthetics. This comprehensive guide will walk you through the steps of repairing your aluminium windows, from identifying the problem to finding the right solution.

Identifying the Problem:

The first step in aluminium window repair is identifying the issue. Common problems with aluminium windows include:

  • Scratched or damaged frames
  • Stuck or jammed windows
  • Broken glass
  • Damaged hardware
  • Gaps or leaks

Carefully inspect your window to determine the cause of the problem. Once you’ve identified the issue, you can proceed with the appropriate repair steps.

Repairing Scratched or Damaged Frames:

Scratches and small dents on aluminium window frames can be unsightly and may lead to further damage if not addressed. To repair them, follow these steps:

  • Clean the damaged area with a mild detergent and water, then dry it thoroughly.
  • Lightly sand the scratched or dented area with fine-grit sandpaper to remove any rough edges.
  • Apply a coat of aluminium primer to the sanded area, and let it dry according to the manufacturer’s instructions.
  • Once the primer is dry, apply a layer of touch-up paint that matches your window frame’s colour, using a small brush or sponge. Allow the paint to dry completely.
  • Apply a clear protective coating to seal the repaired area and protect it from further damage.

Fixing Stuck or Jammed Windows:

Stuck or jammed aluminium windows can be a hassle and may even pose a safety risk. To fix this issue, try the following steps:

  • Clean the window tracks using a vacuum cleaner or brush to remove dirt, debris, and other obstructions.
  • Lubricate the window tracks with a silicone spray or another appropriate lubricant. Avoid using oil-based lubricants, as they can attract more dirt and cause the window to stick again.
  • Check for any damaged or bent window hardware, such as hinges, rollers, or locks, and replace them if necessary.
  • If the window is still stuck, carefully remove it from the frame and inspect the tracks for any further damage or obstructions. Repair or replace any damaged components as needed.

Replacing Broken Glass:

Broken glass in your aluminium window can be a safety hazard and should be addressed promptly. To replace the broken glass, follow these steps:

  • Carefully remove any loose shards of glass from the window frame using gloves and safety goggles.
  • Measure the dimensions of the empty window frame and order a replacement glass panel from a local glass supplier or window repair service.
  • Remove the old glazing putty or sealant from the window frame using a putty knife or scraper.
  • Apply a fresh layer of glazing putty or sealant to the window frame, ensuring a continuous and even application.
  • Carefully place the new glass panel into the window frame, pressing it firmly into the putty or sealant.
  • Secure the glass panel with glazing clips or other appropriate hardware, following the manufacturer’s instructions.
  • Clean the new glass panel with a glass cleaner and soft cloth.

Repairing Window Hardware:

Damaged or malfunctioning hardware can cause issues with your aluminium window, such as difficulty opening or closing, or decreased security. To repair or replace window hardware:

  • Identify the specific hardware that needs repair or replacement, such as locks, handles, hinges, or rollers.
  • Purchase the necessary replacement parts from a window repair service or hardware store.
  • Follow the manufacturer’s instructions to remove the old hardware and install the new components.
  • Test the window’s operation to ensure the hardware is functioning correctly and securely.

Sealing Gaps and Leaks:

Gaps and leaks in your aluminium windows can lead to drafts, increased energy bills, and moisture infiltration. To seal these gaps:

  • Inspect the window frame and glass panel for any gaps or cracks.
  • Clean the affected area with a mild detergent and water, then dry it thoroughly.
  • Apply a suitable sealant or caulk to the gaps or cracks, following the manufacturer’s instructions.
  • Smooth the sealant or caulk with a caulk tool or your finger, ensuring a continuous and even application.
  • Allow the sealant or caulk to dry fully, according to the manufacturer’s recommendations.

Regular Maintenance for Aluminium Windows:

Proper maintenance can help prevent many common aluminium window issues. Regular maintenance tasks include:

  • Cleaning the window glass and frames with a mild detergent and water.
  • Inspecting the window hardware for wear, damage, or loose components, and tightening or replacing them as needed.
  • Lubricating the window tracks and moving parts with a silicone spray or another appropriate lubricant.
  • Checking for gaps and leaks around the window frame and glass panel, and sealing them as needed.

When to Call a Professional:

While many aluminium window repairs can be performed by homeowners, some issues may require the expertise of a professional window repair service. Consider calling a professional if:

  • The damage to your window is extensive or beyond your repair capabilities.
  • You are unsure about how to perform the necessary repairs.
  • You require specialized tools or equipment for the repair.
  • You are concerned about your safety or the integrity of your window during the repair process.

Aluminium windows are popularly used for their strength, durability, and modern appearance. However, like all things, aluminium windows are also prone to damage and wear and tear over time. They may develop issues such as cracks, chips, or worn out seals that can affect their functionality. In such cases, professional aluminium window repair can help to restore the windows to their original condition.


Aluminium window repair is a manageable task for many homeowners, provided they can identify the problem and follow the appropriate steps. By addressing issues promptly and performing regular maintenance, you can ensure your aluminium windows remain functional and attractive for years to come. However, don’t hesitate to contact a professional for aluminium window repair if you’re unsure about tackling a repair yourself or if the damage is beyond your capabilities.

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