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How to Fix Day Night Blinds at Home

How to Fix Day Night Blinds at Home

Evolution of Blinds & Shades

Window shades and blinds have evolved and undergone significant transformation in the last few decades. They are available in a wide range of fabrics and materials to meet the varying needs of the house at different times of the day. Different rooms have very different demands and your blinds and shades are now more than equipped to meet these challenges. There are blackout shades to block out light, light filtering shades to cut out the harsh glares, sheer shades for abundance of sunshine in the room, cellular shades for increased insulation, solar shades to keep the radiant heat out, aluminium and faux wood blinds to sustain prolonged exposure to moisture in bathrooms and kitchens etc. Every room should be respected and given the treatment that does justice to it.

What are Day Night Shades?

Not only are there different shades for different situations, you now have shades that can perform multiple functions with their unique designing and weave. There are shades that have two fabrics rolled into one so that they can perform dual functions in the room. Day Night Shades is an example of the same. They offer two shades in one. Pulling the shade down will give you a sun filtering shade which will help to diffuse the harsh rays of the sun and  fill the room with a soft warm glow of natural light. Pulling the shade up will give you a blackout shade that will block out light completely as and when required. During the day time when you want natural light in the house but not the glares and harmful rays, pull the shade down. If you are a night shift worker looking to catch up on sleep during the morning hours, pull the shade up and cut out all the light for a restful sleep. These shades are fast gaining popularity for their dual role which means you do not have to resort to layered window treatment solution for light control at different times of the day as and when needed. Moreover, they are lightweight with noiseless smooth operation.

Day Night Cellular Shades for Bedroom

Fixing your Day Night Shades

This does not mean that Day Night shades are not without their share of woes. At the heart of their mechanism are thin cords and these cords are the first ones to become casualties. If the cords become loose you can do the necessary to make sure that function optimally. However, when these cords break they are rendered useless. You can replace the shades but sometimes it may not be economically viable. The good news is that these strings can be replaced which means that you can save money by not having to replace the entire blind.

Problem with Cord Retainers

To start with, inspect the blinds carefully on the front and back sides.

Keep a look for frayed and broken strings or plastic grommets which may be broken and hence caused the strings to fray too.

Sometimes you will find problem with cord retainers if your shades refuse to stay put in the up position.  If the problem is due to cord retainers, loosen the screw on the right side retainer. Hold it firmly to prevent unwinding. Turn the cord one and half times and then tighten the screw. You will have to repeat the steps for the left side as well but here the cord will have to be turn in an anti-clockwise direction . Repeat the steps till the shade is able to stay put in up position. Remember not to over-tighten the strings as it will cause the strings to wear off more quickly under increased tension for a prolonged time. If the string starts to unwind, you need to rewind the string back into the cord retainer till it makes a snug fit and then let it be.

Issue with Screws

Sometimes you will find that the screw that holds the cord retainer in position can become stripped which causes the string to unwind. You can solve this problem by using a larger screw which however may not always work because the hole at the centre of the cord retainer is too small to accommodate a larger screw.

Replacing Old Worn out Strings

If the cords are broken, you can repair it by restringing a new cord. You need to know the diameter and the color of the string that you need for the blinds and order them from a store or from the manufacturer of your blinds. You will need the following tools:

  • Cordless driver
  • Flat screwdriver
  • Rubber bands
  • Scissors
  • Tape measure
  • Shade string

Disclaimer: Please note we do recommend consulting your blind manufacturer or retailer before proceeding with any DIY method, as they may have troubleshooting information more accurate and specific to your brand of shade. ZebraBlinds is not liable for any damage caused through these DIY methods.


  1. Remove the valance
  2. Make sure that the shade is dropped down all the way.
  3. Measure the height and width of the shades to determine the amount of string needed. most shades require two strings. You will have to determine the length of the strings depending upon the measurement of the shades.
  4. The string length is calculated to be 2.5 times the width and height of the shades. it is preferable to add few more inches to the strings to allow for miscalculations.
  5. Secure the blind before loosening the cord retainer as it can cause the shades to fall and get damaged.
  6. Adjust the cord retainers. Take care while removing the end caps so as not to damage them.
  7. When removing the shade fabric from the top rail take care not to cause any tears or snags.
  8. Cut the cord from the string at the top of the shade.
  9. Pay heed to the cord routing before you cut the old cord that is attached to the retainer.
  10. Use a flat blade screwdriver to remove the remaining end caps.
  11. Remove the old string.
  12. Gather the shade tightly with rubber bands and hold it together.
  13. Tie a knot at the top before starting to restring the new cord. This will prevent the strings from disappearing the through the holes.
  14. You can use a restring tool or large needle to put the string through.
  15. Slide the fabric through the rails. Reinstall the end caps. Put the shade back to the wall.

Your shade strings have been successfully replaced and it is as good as new. Your shade is ready for use.