
How to Install Weatherstripping on Sliding Windows: A Step-by-Step Guide
As the seasons change, maintaining energy efficiency in your home becomes crucial. One often-overlooked aspect is the sealing of sliding windows. Weatherstripping your sliding windows can significantly reduce drafts, enhance comfort, further protect your window hardware and lower your energy bills. Here's a comprehensive guide on how to install weatherstripping on sliding windows.
Tools and Materials You'll Need:
- Weatherstripping (foam tape, V-strip, felt, or tubular rubber)
- Measuring tape
- Scissors or utility knife
- Cleaning supplies (mild detergent, water, cloth)
- Screwdriver (if needed)
- Adhesive (if your weatherstripping does not come with self-adhesive backing)
Step-by-Step Instructions
STEP 1: Choose the Right Weatherstripping
The first step is to select the appropriate type of weatherstripping for your sliding windows. There are several types available, each with its own advantages:
- Foam Tape: Easy to apply, ideal for irregular gaps.
- V-Strip (Tension Seal): Durable and good for the sides of sliding windows.
- Felt: An affordable option, but less durable.
- Tubular Rubber or Vinyl: Excellent for large gaps, very durable but can be more expensive.

STEP 2: Measure the Window
Carefully measure the dimensions of your sliding window where you plan to install the weatherstripping. Measure the top, bottom, and sides of the window to ensure you get the correct length of weatherstripping material.
STEP 3: Clean the Surface
Clean the areas where the weatherstripping will be applied. Use a mild detergent and water to remove any dirt, dust, or old adhesive. Allow the surface to dry completely before proceeding.
STEP 4: Cut the Weatherstripping
Using your measurements, cut the weatherstripping material to the appropriate lengths. If using foam tape or V-strip, cut the pieces slightly longer than needed to ensure a tight fit.
STEP 5: Install the Weatherstripping
- Foam Tape and Felt: These types usually come with an adhesive backing. Simply peel off the protective layer and press the weatherstripping into place along the cleaned surface. Ensure it sticks well by pressing firmly along the entire length.
- V-Strip: This type often requires folding to form a V-shape. Insert the folded edge into the gap along the sides of the window, and use a screwdriver if needed to secure it in place.
- Tubular Rubber or Vinyl: These may need to be nailed or tacked into place if they don't have adhesive backing. Position the weatherstripping along the gap and secure it with nails or tacks, ensuring a snug fit.
STEP 6: Test the Window
Once the weatherstripping is in place, slide the window open and closed several times to ensure it operates smoothly. Check for any areas where air might still be leaking and adjust the weatherstripping if necessary.
STEP 7: Final Adjustments
If there are still minor gaps, you can add additional layers of weatherstripping or use caulk to seal any small cracks.
Tips for Effective Weatherstripping
-
Regular Maintenance:
Inspect your weatherstripping periodically and replace it if it becomes worn or damaged.
-
Proper Storage:
Store any extra weatherstripping material in a cool, dry place for future use.
-
Energy Audits:
Consider having a professional energy audit to identify other areas in your home that could benefit from weatherstripping or other insulation improvements.
Conclusion
By following these steps, you can effectively install weatherstripping on your sliding windows, making your home more energy-efficient and comfortable year-round. This simple DIY project can lead to significant savings on your heating and cooling bills while enhancing your living environment. For more information on weatherstripping for sliding windows or help ordering replacement weatherstripping, Contact Us Today! The WHD Team looks forward to assisting you.