How To Replace Glass In A Double Pane Window

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    Double pane windows offer excellent insulation and energy efficiency, but what happens when one of the panes gets cracked or foggy? While some might think of window replacement, a more cost-effective and quicker solution is often to simply replace the damaged glass. This comprehensive guide will walk you through the step-by-step process of replacing glass in a double pane window.

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    We offer a wide range of services from foggy window repairs to emergency window repair services in Seattle. Our team of skilled technicians has years of experience in the industry, ensuring quality and timely service. We prioritize customer satisfaction and offer solutions tailored to your specific needs.

    Service Areas:

    • Seattle
    • Everett
    • Bellevue
    • Tacoma
    • Redmond

    Tools and Materials Needed

    Before diving in, make sure you have the following tools and materials:

    • Tape measure
    • Screwdriver or drill
    • Utility knife
    • Putty knife
    • Caulking gun and caulk
    • Replacement double pane glass
    • Gloves
    • Safety goggles

    Steps to Replace Glass in a Double Pane Window

    Step 1: Remove the Window Sash

    Firstly, you’ll need to remove the window sash from the frame. To do so, unscrew any screws holding it in place and gently lift it out.

    Step 2: Measure the Glass

    Use a tape measure to determine the dimensions of the glass you need. For more on how to measure, check out our guide on how to measure a window for replacement.

    Step 3: Order Replacement Glass

    Once you have the measurements, order the replacement glass. Ensure it’s of the same thickness and type as the original glass.

    Step 4: Remove Old Glass

    Put on your safety gear and use a utility knife to cut around the edges of the broken glass. Then, use a putty knife to pry it out.

    Step 5: Prepare the Area

    Clean the area where the new glass will go. Remove any old caulk or adhesive.

    Step 6: Install New Glass

    Apply a bead of caulk around the frame where the new glass will sit. Carefully place the new glass onto the caulk.

    Step 7: Seal the Glass

    Once the glass is in place, use the caulking gun to apply a seal around the edges.

    Step 8: Reinstall the Sash

    Finally, put the sash back into its original position and secure it with screws.

    Highly Detailed Table: How To Replace Glass In A Double Pane Window

    Step Tools Needed Time Required Additional Tips
    Step 1 Screwdriver or drill 10 minutes Make sure the sash is lifted carefully to avoid any damage
    Step 2 Tape measure 5 minutes Double-check measurements for accuracy
    Step 3 Varies Order from a reliable supplier
    Step 4 Utility knife, Gloves 15-20 minutes Be cautious while removing the glass
    Step 5 Putty knife 10 minutes Make sure the area is clean and free of debris
    Step 6 Caulking gun, caulk 10 minutes Ensure you apply an even bead of caulk
    Step 7 Caulking gun 10 minutes Make sure the caulk is smoothed out for a clean finish
    Step 8 Screwdriver or drill 10 minutes Recheck all screws and ensure they are tightly fixed

    Frequently Asked Questions

    Can Double Pane Windows Be Repaired?

    Yes, double pane windows can often be repaired rather than replaced. If you’re dealing with issues like foggy or cracked glass, you may only need to replace the damaged pane. For more details, you can read our article on the topic.

    How Do I Deal with Cloudy Double Pane Windows?

    Cloudy double pane windows usually indicate a seal failure. This can often be repaired by simply replacing the glass pane that has lost its seal. For more information, read our guide on cloudy double pane windows.

    What Types of Windows Do You Replace?

    We offer replacement services for a variety of window types, including aluminum clad wood windows and vinyl windows.

    How Can I Make My Windows More Energy Efficient?

    Aside from double pane windows, there are other window types designed for energy efficiency. Consider upgrading to energy-efficient windows to save more on your energy bills.


    Replacing glass in a double pane window is a practical solution to common problems like cracks or fogging. With the right tools and a bit of guidance, you can easily complete this project yourself. From window repairs to full replacements, we are here to assist you. If you’re located in Seattle or the surrounding areas, feel free to contact us for all your window needs.

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