However, over time, one or more glass panels may crack, loosen, or get damaged due to weather or impact. Replacing a jalousie window glass panel is a simple task that doesn’t require removing the entire window—just a few tools and careful handling.
This step-by-step guide will help you replace broken or damaged jalousie window glass panels easily and safely.
Step 1: Gather the Necessary Tools and Materials
Before you start, make sure you have everything you need to work efficiently.
You’ll need:
- Replacement glass panels (same size and thickness as the originals)
- Flathead screwdriver
- Rubber gloves and safety glasses
- Pliers
- Measuring tape
- Putty knife or scraper
- New clips or retainers (if old ones are rusty or damaged)
- Silicone sealant (optional)
Having all materials ready makes the process smoother and helps prevent mistakes.
Step 2: Open the Jalousie Window
Turn the crank or handle to open the window completely. This separates the glass slats and gives you access to the individual panels.
If the damaged panel is stuck, move it gently until it loosens. Do not apply too much pressure, as this could break adjacent slats.
Step 3: Remove the Damaged Glass Panel
Most jalousie windows hold each glass panel with metal or plastic clips on both ends.
Use a flathead screwdriver to lift or press the retaining clips gently.
Slide the glass panel out of its holder.
If the clips are rusted or tight, use pliers to pull them out carefully.
Place the broken glass on a soft surface to avoid further shattering. Wear gloves and dispose of sharp pieces safely.
Step 4: Measure for the Replacement Panel
Use a measuring tape to check the length, width, and thickness of the removed glass.
Most jalousie glass panels are around 4 to 6 inches wide and 30 to 36 inches long, but always confirm the exact size for your specific window.
If you’re ordering a replacement, take the broken glass or accurate measurements to a local hardware store or glass supplier. You can also order custom-cut glass panels online from B2B manufacturers or home improvement suppliers.
Step 5: Clean the Frame and Clips
Before inserting the new glass, clean the track and clips where the old panel was mounted. Use a putty knife or a small brush to remove any dirt, rust, or sealant residue.
This ensures that the new glass sits firmly and operates smoothly when the window opens and closes.
Step 6: Insert the New Glass Panel
Hold the new glass panel with both hands.
- Align it carefully into the bottom clip or groove of the jalousie frame.
- Push the top edge into place under the upper clip.
- Make sure both ends of the glass are fully seated in the clips.
You’ll hear or feel a light click when it fits securely.
Step 7: Check the Alignment and Operation
Once the new panel is installed, test the window by turning the handle or crank.
- The louvers should move together evenly.
- The new glass should not wobble or slide.
- If it feels loose, tighten the clips slightly or apply a thin layer of silicone sealant for extra stability.
If one side seems uneven, loosen the clip and adjust the glass until it aligns with the other panels.
Step 8: Replace Any Worn Clips or Hardware
Old jalousie windows often have clips that rust or lose their grip. If you notice any damaged clips, replace them while you’re already working on the window.
Modern replacement clips are available in stainless steel, plastic, or aluminum, which last longer and resist corrosion.
Step 9: Clean the Window
After installation, clean the new glass panel and the rest of the window with a mild glass cleaner and a soft cloth.
Avoid using abrasive sponges or harsh chemicals that could scratch the glass or damage the frame coating.
Maintenance Tips After Replacement
- Inspect regularly: Check for cracks or chips at least twice a year.
- Lubricate moving parts: A small drop of silicone oil on the crank and hinges keeps movement smooth.
- Clean monthly: Wipe glass and frame to prevent dust buildup.
- Avoid slamming: Don’t force the window shut; this helps prevent future cracks.
Conclusion
Replacing a broken or cracked jalousie window glass panel is easier than it looks. With just a few tools and the right replacement glass, you can restore your window’s appearance and functionality in under an hour.
Proper maintenance—like regular cleaning and checking for loose clips—will help your jalousie windows last for many years.
By following these steps carefully, you’ll keep your windows looking beautiful, secure, and efficient in providing natural airflow and light.
