3-Step DIY Weatherstrip Replacement: Get It Done in 10 Minutes, Perfect for Beginners

3-Step DIY Weatherstrip Replacement : Get It Done in 10 Minutes, Perfect for Beginners

"Need to hire a professional to replace weatheripping ?" " No way ! " You can easily handle one window yourself in just 10 minutes ,for under 7 ＄:

Step 1: Check if the Old Seal Has "Failed" 

Press the seal with your finger—if it rebounds slowly, shows cracks, or feels stiff, it’s time for a replacement . This is especially true for seals that haven’t been inspected in over five years, as 90% tend to deteriorate due to moisture , sun exposure, and general wear.  

Step 2: Clean the Frame + Cut Precisely

Gently remove the old seal with a screwdriver, then wipe the frame with alcohol (grease can weaken adhesion). Once clean , measure the perimeter of the frame and cut the new seal accordingly—trim corners at a 45-degree angle for a seamless fit, and add about 2 cm extra to allow for expansion.  

Step 3: Apply, Press & Test the Seal 

Peel off the adhesive backing and start applying from the top of the frame, pressing firmly as you go (a bank card can help smooth it down). After installation, close the window and test the seal: hold a lighter flame near the edges—if the flame stays steady, the seal is airtight. If the seal hardens in cold weather, simply warm it with a hairdryer for 10 seconds to restore flexibility.