How to repair blind strings

Written by jonra springs
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How to repair blind strings
Keep your blinds in working order by repairing a faulty string. (venetian blind. image by guiney from

The strings on blinds are subject to breaking after several uses and adjustments. Mini-blinds, Venetian blinds and wood blinds use two types of strings that are somewhat vulnerable. Most string breaks prevent the blind from raising, or allow a slat to fall out of line. There are two possible ways to repair blind strings so you can keep using the blinds.

Skill level:

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Things you need

  • Clear tape
  • Lighter
  • Pliers

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  1. 1

    Patch breaks in the ladder strings that support blind slats with clear tape. Piece the rang, or vertical length back in place and wrap with clear tape two to three times. Ladder strings have little weight on each section, so taped connections are not likely to come undone.

  2. 2

    Twist broken cord pieces together to start mending a drawstring. Strike a lighter and hold the flame under the twisted union until the strings begin to melt.

  3. 3

    Pinch the melted union with pliers. Open the pliers and twist the junction 1/4 turn and pinch it between the pliers again.

  4. 4

    Tug gently on the union from both sides to be sure the two cord parts are joined. Melt and pinch again if a gentle tug separates the two sections. It may take a few attempts to get a solid connection. The burnt union will create a small black section of the drawstring, but it will slide through the slots and cord lock, and the window blinds can remain in service.

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