To replace or untangle sash cords, you must first remove the lower sash.
To replace cords attached to the upper sash, you must remove it also.
Mr. Manganiello's company also repairs one- and two-inch blinds by replacing tapes, the tilt gear, cords and cord locks.
Typically a full restoration involves stripping and repainting wood parts and replacing broken panes and sash cords or chains.
You can replace broken blind cords and the slats' strings or tapes.
Replace broken blind cords and rungs, the strings or tapes securing the slats.
Replace broken sash cords with weights.