Doors

• 1). Remove pins in the hinges of the door leaking air. Place a pin punch over the pin and hammer it gently to remove it.
  
  
• 2). Open up the door. Use the doorknob to balance the door. Lift the door slowly off the hinge and place it on the ground.
  
  
• 3). Grip the old weatherstripping and remove it slowly and carefully. You should be able to pull it off unless brads hold it in place. These can be removed with a chisel.
  
  
• 4). Measure the area around the door. Cut one continuous piece of weatherstripping that will fit inside the jamb going around the door.
  
  
• 5). Push compression weatherstripping into the jamb. Use 1-inch brads to secure it in place. Put the door back on the hinges and replace the pins.
  
  

Windows

• 1). Clean the window leaking air using a clean cloth and rubbing alcohol. Allow it to dry completely before continuing.
  
  
• 2). Use a caulking gun and permanent caulk to seal the entire area around the window frame. Add extra caulk under the windowsill as this is a common area that leaks air.
  
  
• 3). Put non-permanent caulk into the caulking gun. Use it to seal the moving parts of your window, such as the seam at the bottom and around the locks. In the spring, you can remove the semi-permanent caulk with water.