Repairing rotted door jambs.

Jim P
by Jim P
My customer had 6 door jambs that had rot in about the same place and size. These were large double door units and I did not want to remove the unit and replace the complete jamb.
My customer had 6 door jambs that had rot in about the same place and size. These were large double door units and I did not want to remove the unit and replace the complete jamb.
I cut out the rotted area and cut the brick molding a little higher than the removed area.
You can buy at the big box store replacement door jambs. I cut and fitted a replacement piece. I have a router bit to cut a slot the thickness of a biscuit. I cleaned the area well and put a bed of caulking in. Then secured the replacement piece with the biscuit, shims, gorilla glue and brads. The brick molding was put on and it covered the slot for the biscuit and gives strength to the repair.
This is the finished repair waiting for paint. The material for this job was less than $75.00, but a lot of labor. I hope that this will help someone in the future.
Frequently asked questions
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3 of 4 questions
  • Katrina A Czachor Katrina A Czachor on Oct 08, 2018

    What if you have a door with the side windows and there is not there as well? Do you have to replace the whole thing or would this work for it? I do not have bricks on my house.

  • James James on Aug 26, 2019

    Every one says replace with vinyl - well look at this rotten vinyl door jam on a potential house purchase? How do you fix vinyl french doors rotten vinyl door jam? Replace or fix?

  • JANE JANE on Oct 11, 2022

    Can you come fix mine in Alabama?

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2 of 26 comments
  • Diane Diane on Jun 14, 2023

    I have some rotten post on my porch. The bottom has rotten wood. I do not want to take the whole post down. Will this work on them?

  • Jim P Jim P on Jun 16, 2023

    Yes.

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