How to Fix Cracked Window Trim

A cracked window trim in a car can cause water to get in, eventually causing further damage. This is a fairly common problem, but fortunately is not particularly difficult or expensive to fix, especially if you do it yourself.

Tools and Materials Needed:

  • Utility knife
  • Dry rag
  • Sealant gun
  • Sealant
  • Duct tape
  • Silicone rubber
  • New trim

Step 1 – Find the Crack

The first thing to do is to find the crack in the window trim. You will need to locate this area and then pry up the strips of trim using the utility knife. Pull away the trim away from the window all around the frame. Examine it for missing sealant or spots of mildew. Replace it if there are cracks. Also, check the edges of the window for any cracks or chips in the glass.

Step 2 – Place the New Sealant

Use polyurethane sealant with a sealant gun and apply it into the channel from where you removed the old trim. Place this around the entire window frame and then apply the new strip of trim. Get rid of any excess sealant using the rag. To make sure that the new sealant is held in place until it dries, place duct tape around the area treated. Leave this for a day to dry. To cover any cracks inside the window, use silicone rubber until the window is replaced.