Fabric blinds are window treatments that cover the window and are drawn up on cords mounted to the back side of the blind. The Roman shade is the most common of these blinds; most blinds operate and are strung the same way as the Roman shade. A Roman shade collects in horizontal pleats as it is pulled upward. Other blinds such as balloons or waterfalls will collect in soft folds or swags and they will not have rigid dowels on the back side. Restringing all of these blinds follows the same guidelines.
Remove the blind from the window. With home-made blinds the blind may be attached to the header board (batten) with hook and loop tape or it could be stapled or otherwise mounted.
Turn the blind face down on the work table with the top horizontal and away from you. Extend the blind to its full length. The bottom of the blind should be closest to you. Vertically down the blind you should see a series of plastic rings. Through these rings are cords that operate the blind. Usually a blind is restrung when the cords are damaged or if the plastic rings are torn away.
Find the broken cord or ring. If the cord is broken you will see a cord end. If a ring is broken you should find a torn spot in the lining or back side of the blind that needs to be repaired. Note if the cords gather to the right side or the left side of the blind.
Cut each cord at the lowest ring and remove the cords from the blind. Use a needle and thread to mend any torn spots where rings have been torn from the fabric. Replace any missing rings. All rings are in both a vertical and a horizontal row. Find your vertical row and a ring. You should have a ring at each intersection of the vertical and horizontal rows. Rings are sold at the fabric store.
Measure twice the height of the blind and add that number to the width of the blind. Cut a cord for each vertical row on the back of your blind. Tie one cord to the bottommost ring on the left side of the blind if your cords originally gathered to the right side in Step 3. (Start on the right side if they gathered to the left.) Thread the cord from bottom to top through each ring vertically above the first ring. At the header you should see an eyelet above the top ring. Thread the cord through the eyelet and through each eyelet toward the gathering side. There should be an extra eyelet after the last vertical row that collects all of the cords together.
Knot a second cord through the second ring or loop and upward vertically, over through the eyelets to the extra eyelet. Repeat for each vertical row and cord. Once all of the rows have a cord and all of the cords are through the last outlet to the outside of the blind, insert the gathered cords in a cord condenser. Make sure your blind is even and flat and that the cords are gathered evenly. A cord condenser is a small plastic device that turns several cords into a single cord.
Slide an acorn on the end of the single cord and tie a knot in the cord. You can rehang the blind. The single cord will tie off to a wall cleat mounted to the side of the blind. A cleat is a two-sided hook that mounts with screws.