How to repair venetian blinds |
Traditional blinds slats or pull cord replacement

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OVERALL DIFFICULTY INDEX: 2/10
NO TOOLS NEEDED FOR THIS JOB
IF YOU HAVE NO EXPERIENCE YOU SPEND 1 HOUR TO CARRY OUT THIS JOB
NO SAFETY ISSUES

BEFORE YOU START

This is a diy repair that anyone can do with almost no tools, and with just a bit of observation and patience.

DISCLAIMER:
Our pictorials are of informative nature and do illustrate works carried out by ourselves at our own premises for our own use and satisfaction.
Readers who envisage to carry out similar works inspired by the below method shall do this at their own risks and liability.

How venetian blinds work

Horizontal blinds are made of tilting slats controlled by two separate sets of ropes:

A string ladder which holds the blades (slats) at an equal distance from each other and allows to tilt them when rotating the wand
A lift cord (pull cord) that goes through oblong openings in each of the slats

You willl have then as many pull cords as openings in the venetian blinds blades, which you need to hold all together when pulling to lift the blind. Small blinds will have only two lift ropes, larger ones will have three, with one cord added in the middle of the slats.

Freeing the horizontal louvers (slats) of traditional blinds

Replacing the blinds slats requires pulling out the lift cord, since it crosses them.
Look at the bottom of your blind and you will find a plug that you need to remove for accessing the lifting rope.
Use any tool like the curved needle shown in the right picture below to pull out the knot.

Undo the knot and pull out the lift cord through the blades (slats) of the blind.
You do not need to remove the lift cord completely.
If you're replacing a slat, take out the rope from the blades below the broken slat that needs replacement.

Replacing a broken or bent venetian blind blade

Once the lift cord is taken out, you just need to slide the broken slat out of the string ladder and then refit a new blade the same way.

Shortening a venetian blind

Simply remove all the slats up to reaching the required length of the blind and cut the ladder string as shown.
Refit the pull cord as explained below.

Refitting the puller rope of louver blinds

Refit the pull rope by passing it through the holes of the new slat and all the ones beneath including the profile at the bottom of the blind.
Redo the knot and close the plug.

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