Renewing sash cords

Filed Under: Do it yourself, Home repair, Redecorating    by: ITC

Whether or not you’ve had to pause in order to repair a sash or to repaint everything, you’re now ready to carry on and fit new sash cords.

The first step is to remove the weights. To get at them, you have to take out the one or two pieces of wood covering each weight compartment — the pocket pieces. These are usually just a push fit, and you pry them out with an old chisel or screwdriver; in somecases, – however, there’s also a retaining screw. Lift out each weight, untie the cord from it, and attach it to the free end of the string, making a complete loop. If there’s rust on the weight, you can rub it off with abrasive paper at this stage. but there’s no need to paint it.

You can buy new sash cord from almost any builder’s merchant or hardware store, but ask for it by name — doesn’t just use any old cord. To fit the new cord, untie the loop of string. tic the cord to it, and use it to thread the cord over the pulley and down into the weight compartment. Then tie the cord to the weight with a strong knot. At this stage don’t try cutting the cord to the correct length — leave it too long.

Most sashes have a groove, near the top of each side, in which the cord is fixed with small galvanized round-head nails. Either nails the cord into the groove and trims off the excess, or marks the groove length on the frame and trims the cord to the mark.

Whichever you do, the weight should hang 50mm (2in) above the base of its compartment when the sash is at the top of the frame. It’s the same for each sash. Note that the cord shouldn’t be fixed right to the top of the groove, or the sash won’t run all the way up. The topmost nail should be as far down from the top as the top of the pulley is from the top of the frame opening.

After fixing the cords at both sides of the outer sash, replace the parting bead. Then repeat the whole process for the inner sash, and lastly replace it and the staff bead in position. When fixing the beads. make sure the sashes have room to slide free.

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