How to Repair Fence Holes Wipe away dirt and debris. Use medium-grit sandpaper to smooth surface about 3 inches around hole. Use expanding foam to fill holes larger than 1” in diameter. Remove excess foam with coping saw. Smooth the surface with medium-grit paper and create dent in foam. Wipe with damp cloth. Click to see full answer. Then, how do you fix a screw hole in a vinyl fence? How to Patch a Hole in a Vinyl Fence Wipe the area around the hole in the vinyl fence with a damp rag to remove any dirt or debris. Rough the area around the hole with 80-grit sandpaper. Prepare the spray foam insulation by attaching the included long nozzle onto the can. One may also ask, how do you get scratches out of a vinyl fence? Scrub the scuff marks off the PVC fencing with the lacquer thinner-soaked rag or shop towel. Continue scrubbing the PVC fencing with the rag or shop towel until all the scuff marks are gone. Spray the fence with the water to remove any lacquer thinner residue. Then, what is the best glue to repair vinyl fencing? Veranda PVC cement glue is specifically designed for vinyl fence. The exclusive rapid set formula creates a strong bond for years of enjoyment. Available in 1.5 oz. tubes, it’s perfect for installing vinyl post caps on vinyl posts.How do you repair a hole in a fence? Basic Wood Fence Repair Tips Start by sanding the inside of the hole with coarse sandpaper. Then wipe away any remaining sawdust or dirt. Fill the hole by applying the putty with a 1-inch wide putty knife. After the putty has dried, take medium grit sandpaper to even out the putty with the rest of the fence.