how to remove double hung window sash

3 min read 03-02-2025

Double-hung windows, with their ability to slide both sashes up and down, offer excellent ventilation. However, cleaning, repairing, or replacing these windows often requires removing the sashes. This guide provides a step-by-step process to safely remove your double-hung window sashes, regardless of whether they're made of wood or vinyl. Removing a double hung window sash is easier than you might think!

Tools and Materials You'll Need

Before you begin, gather these essential tools:

Putty knife (or a flathead screwdriver): For gently prying loose any stuck or painted sashes. A plastic putty knife is less likely to damage the window frame.
Screwdriver (Phillips and flathead): Depending on your window's construction, you might need both types to remove any holding screws.
Gloves: Protect your hands from splinters, paint chips, or dirt.
Soft cloth or rag: To clean the window frame and sash.
Optional: Safety glasses: Protect your eyes from any debris.

Step-by-Step Guide to Removing a Double Hung Window Sash

Here's how to safely remove both the top and bottom sashes of your double-hung window:

1. Assessing Your Window

Before you start, carefully examine your window. Note how the sash is held in place. Some windows have simple stops, while others might have screws or more complex mechanisms. Take pictures to aid in reinstallation if needed.

2. Locating the Stops

Double-hung windows typically have stops – small pieces of wood or plastic – at the top and bottom of each sash. These stops prevent the sash from falling out. Gently try to slide the sash upward to assess the resistance. You'll feel a slight stop.

3. Removing the Stops (If Necessary)

For windows with removable stops: Carefully use your putty knife to pry the stops away from the window frame. Work slowly and gently to avoid damaging the frame. Remove the stops from the top and bottom of both the upper and lower sashes.

For windows without removable stops: Some double hung windows don't have removable stops. The sash may be held in place by friction or by screws near the top or bottom. Refer to step 6 if you have screws that need to be removed.

4. Lifting the Sash

Once the stops are removed (or you've confirmed no removable stops exist), carefully lift the sash upwards. Tilt the sash slightly to help it clear the tracks. It will likely lift out smoothly.

5. Removing the Second Sash

Once the first sash is removed, repeat steps 3 and 4 for the second sash. Remember to be gentle and patient.

6. Dealing with Screws

Some double-hung windows use screws instead of, or in addition to, stops to secure the sashes. If you encounter screws, use the appropriate screwdriver to remove them. Once removed, lift the sash out as described in step 4.

7. Cleaning the Window Frame and Sash

After removing the sashes, take this opportunity to clean the window frame and the sash itself. Use a soft cloth and a suitable cleaning solution.

8. Reinstalling the Sash (Reverse Process)

Reinstalling the sash involves reversing the steps above. Make sure the sash slides easily in the tracks before reinserting the stops or tightening the screws.

Troubleshooting Common Issues

Sash Stuck: If a sash is stuck, apply a lubricant like silicone spray to the tracks. Gently work the sash back and forth to loosen it. Avoid using excessive force.
Damaged Stops: If the stops are broken or damaged during removal, you might need to replace them. Hardware stores usually carry replacement window stops.
Difficult Removal: If you're having significant difficulty removing the sash, consult a professional window repair service. It's best not to force anything that might cause damage to your windows.

Removing double-hung window sashes is a manageable DIY task. By following these steps and taking your time, you can successfully remove and reinstall your sashes for cleaning, repairs, or replacements. Remember to always prioritize safety and patience throughout the process. If you are unsure or uncomfortable performing this task, it's best to call a qualified professional.