How to Fix Tension Wire on a Fence

Written by kirk maltbee
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Chain link and wire fences are a common sight in many backyards and properties. The fences serve their purpose of keeping something in or out, but after time the fence may lose some of its strength because of the gradual loosening of the wire that is under constant tension. Addressing fence wiring that's lost its tension is a relatively simple do-it-yourself project that negates the need to completely replace the fence.

Skill level:

Things you need

  • Screwdriver
  • Turnbuckle
  • Garden trowel
  • Quick drying cement
  • Hammer
  • 3 pieces of rebar, 2 feet long
  • 3 wooden blocks

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  1. 1

    Check to see if the fence in question has a turnbuckle that adjoins the wire to the post. You can adjust turnbuckles --- long tubular metal pieces --- by inserting any type of screwdriver into the middle open section of the buckle and turning clockwise, which increases tension on the fence wire. If the fence doesn't feature a turnbuckle, you'll need to purchase one and install it as directed. If turnbuckles aren't the culprit, chances are something is amiss with the posts.

  2. 2

    Check the levelness of the fence wire with a carpenter's level on each post and in the middle of the wiring between two fence posts. If you find there's sagging, especially in the middle section, the decrease in tension is because of alignment issues. Kneel at the end of one of the posts and look down the fence line to see if the opposite post is in line with the one where you're kneeling.

  3. 3

    Wobble the fence post to check to see if there's an abundant amount of movement in the post's moorings in the ground. If so, you need to secure the post to address the loss of tension. Dig a 2- to 3-inch-wide perimeter around the base of the wobbly post, down to the base of the post.

  4. 4

    Mix the quick drying cement per the package directions and use a garden trowel to shovel the mixture in the dugout space. Fill the space to the top of the soil. Hammer in three pieces of rebar into the ground around the fence: two on either side of the post and the last bar facing down the fence line. Place three small wooden 2-by-4 blocks in between the fencepost and the rebar to stabilise the post while the concrete dries. Allow several hours for the mix to dry underground before removing the rebar.

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