Bent or Damaged Interlocking Hook Strip: Repair or Replace?

A slightly bent hook can sometimes be eased back by hand. A kinked, cracked or flattened hook should be replaced. You can usually replace just the hook strip and keep the existing threshold, as long as the new hook lines up with the threshold profile.

Replace the hook strip

1. Pull the old strip and its nails off the door bottom. Clean the rabbet to bare, flat wood.
2. Cut the new J-hook strip a little shorter than the door width.
3. Hold it slightly off the rabbet face with matchsticks as spacers so the hook projects correctly. Nail it, closer together near the ends. Set the nails nearly flush so they don't catch the threshold.
4. Remove the spacers. Close the door slowly and check that the hook engages without scraping.

Why hooks get bent

Usually the door was dragged across the threshold, rehung carelessly, or the door sagged. Fix the cause or the new hook will bend too. Check the alignment.

During construction, install the hook strip after heavy work is done to protect it.

Common questions

Can a bent interlocking hook strip be repaired?

A slightly bent hook can sometimes be eased back by hand. A kinked, cracked or flattened hook should be replaced.

Can I replace only the hook strip and keep my threshold?

Usually yes, as long as the new hook lines up with the existing threshold profile.

Want it done for you?

Classic Door installs weatherstripping and bronze thresholds on historic doors across New England. Anywhere else, send photos of the full opening, the door edge and the sill and we will tell you what you have and what to order. Not sure you picked the right part? Write "verify my order" in the order notes and we will check it before it ships.