Repairing Guides

how to repair window sash cords

by Willie Johnston Published 2 years ago Updated 2 years ago
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Part of a video titled How to Repair Damaged Window Sash Cords - YouTube
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Up almost to the top and back it down just a little bit. So now i push the rope in the dado. And iMoreUp almost to the top and back it down just a little bit. So now i push the rope in the dado. And i line it up at the bottom of the hole. And that's where i will tie my knot.

Full Answer

How do you fix a broken window sash cord?

Take out the old weights and broken sash cords. Feed a cotton line down the pulley hole and into the weight pocket. Tie off the bottom end of the cotton line to the old weight on each side and return the sash weight to the window pocket. Cut the opposite side of the line.

How to remove a sash window from the wall?

2 Remove the bottom sash. 3 Pry the parting bead free of the window frame. 4 Pull out the top sash. 5 Cut sash cord on both sides of window frame; knot cords to prevent them from falling into wall. 6 Unscrew the access panel from the side jambs to reveal void inside wall. 7 Lift out any sash weights that broke free from cords.

How do you attach sash cords to the wall?

13 Use string to pull new sash cord into the wall; attach sash weight. 14 Hold top sash in window frame and cut new cords to length. 15 Tie new cord to each side of sash. 16 Install top sash, then replace parting bead. 17 Repeat above procedure for attaching sash weights to bottom sash.

Where does the cord run on a sash window?

The cord runs up to the top of the window jamb, through a pulley channel, and down to the weight inside the jamb. As the sash moves up and down the counterweight keeps it balanced and held in place. To repair the cord on a window like this, the counterweight inside must be reattached to the sash with a new cord.

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When fixing a broken sash cord do you remove first?

If you're replacing a lower sash cord, you'll have to take out your lower sash window. But if it's the upper sash cord, you'll need to remove the lower sash first and then the upper one.

How much does it cost to replace window sash cords?

Window sash cord repair costs $35 if you do it yourself. Most homeowners pay between $10 and $60 for the materials. If you hire a pro, window sash cord repair costs $75 on average for the cost of materials and labor.

How are sash cords attached to the sash?

The sash cord operates on a pulley system attached to the inside of the window casing. Typically, the window will contain two sash cords, one on either side of the pane assembly. The cord is boxed within the window casing, so that the whole of the pulley and weight mechanism is hidden from view.

How do you measure the length of sash cord to replace a broken one?

Measure the distance from the bottom of the cord slot on the side of the sash to the bottom of the sash - see right. Mark the distance on the side stile measuring up from the bottom of the frame - see right. When the stage is reached to cut the cord, the final measurement will be taken from these marks.

Is it cheaper to repair or replace sash windows?

Generally speaking, it is cheaper to have your sash windows restored rather than replacing them completely. However, it does depend on the company you use, the condition of the window and the work required.

How do you replace ropes in old windows?

1:115:31How to Repair Damaged Window Sash Cords | Ask This Old HouseYouTubeStart of suggested clipEnd of suggested clipGive that line a pull. But all right it's in there yeah it's in there but they're not connected.MoreGive that line a pull. But all right it's in there yeah it's in there but they're not connected.

What material is sash cord?

The most common materials are jute, cotton and nylon. We stock and source a range of diameters – each material and diameter provides different qualities and breaking strengths to ensure safe fitting or repair of the smallest window to the largest.

What is sash cord made of?

Our all-purpose sash cord is made of premium quality yarn with either a fiber or steel core that gives it additional strength and improved performance. Galvanized or stainless steel cable is used for the steel cores for added strength and durability.

How do you fix window sash Springs?

1:433:24Side-Load Single Hung Balance Spring Replacement - YouTubeYouTubeStart of suggested clipEnd of suggested clipThe balance spring tightly. Put downward pressure on the bound spring. Until you can slide the topMoreThe balance spring tightly. Put downward pressure on the bound spring. Until you can slide the top of the balance ring under the takeout clip to reinstall the sash into the frame of the window raise.

Why do sash cords break?

Over time, wear and tear causes sash cords to break. If one cord breaks, you may find that your window still stays open, but there will be added pressure on the cord on the other side.

How long should a window sash cord be?

To determine how long your sash cord needs to be, measure the height of the entire window opening from the sill area to the top of the jamb. Add 6 inches to this height to get the needed length.

What diameter is sash cord?

1/4" diameter.

Can window sashes be replaced?

If the problem is only that of broken glass—and the damage is localized—you can replace the window sash only. In some cases, you'll need to replace the whole window or have a window company or contractor to come in to make extensive repairs.

Are sash kits worth it?

Sash kits are an excellent way to get the benefit of new windows without all the fuss and mess. They can be custom sized and are available in a wide range of styles and materials including wood, aluminum clad, vinyl and in some cases a combination of materials.

How much do double hung sash windows cost?

The average cost range to replace a double hung window is $310 to $665 per window, with a national average of $490 per window. This includes the cost of the window materials plus installation and labor.

How do you replace a lower sash window?

0:363:13How to remove and replace a bottom & top sash - YouTubeYouTubeStart of suggested clipEnd of suggested clipFirst thing you would need to do to change this sash is unlock the window. And raise the sash up.MoreFirst thing you would need to do to change this sash is unlock the window. And raise the sash up. And at this point you would pull in the tilt latches on either side. And tilt the window. Out.

How to remove a sash from a window?

Steps: Remove the screws holding the stop beads with a screwdriver. Remove the sash from the window opening. Remove the screws holding the doors to the weight pockets using a screwdriver. Take out the old weights and broken sash cords. Feed a cotton line down the pulley hole and into the weight pocket.

How to replace a door to the weight pocket?

Replace the door to the weight pocket using screwdriver and screws. Pull on the cotton line and lift the weight almost to the top of the jamb . Fish the line along the dado cut of the sash. Tie a knot where the line meets the hole in the sash. Put the knot in the hole and nail it into the sash using a hammer and nail.

How to reuse a cord on a sash?

If the cords are to be reused: prise out the pins attaching the cord to the sash and tie a knot in the cord, slowly allow it to rest at the pulley. Remove the sash.

How to fix a sash that is inoperable?

If the top sash is inoperable it is usually painted shut, but also check for nails or screws fixing it in place. Carefully slice along any paint joints with a sharp knife, and tap the sash gently until it is free, often tapping upwards on the sash horns works. Remove the cords & tie knots as you did with the bottom sash.

How does a box sash window work?

How does a sash window work? A box sash window operates by counterbalancing the weight of the sash against weights attached to a cord and passed over a pulley. These weights (usually cast iron, sometimes lead) travel up and down in a box, concealed within the window frame, hence the name Box Sash Windows.

Why is it important to have a sash that slides easily?

For sashes to slide easily, it is important that the weights and sash are equally balanced. Whilst the weights would have suited the original glass, glazing repairs may have used thicker, heavier glass which puts the system out of balance.

Why is the opening distance of a sash shorter?

This is due to the long weights required to balance wide glazed frames.

How to minimize disruption to paintwork?

Using a sharp knife carefully slice along any paint joint formed between the staff beads and the box frame, this will minimize disruption to the paintwork.

What happens if you put a weight on top of a window?

If there is no ‘wagtail’ dividing strip, between the weights, and the window is out of vertical ‘plumb’ alignment then it is possible that one weight can sit on top of the other during use, stopping the window from working. It may be necessary to cut a strip of hardboard or thin plastic sheet and pass it up between the weights and pulleys.

How to attach a sash cord?

Attaching the Sash Cord. Measure the length of the groove in the side of the sash and add about 5 inches to this length. While suspending the weight 4 or 5 inches above the sill level, hold the sash in the jamb at its highest position and mark the cord at the top of the sash with a pencil. Set the sash aside and cut the cord to length.

How to get a sash to not protrude?

Tuck the knot and cord into the side channel on the sash so it doesn't protrude and drive the nail into the sash using the same hole it came from. Use a phillips screwdriver or a nail set to sink the nail until it's tight. Slip the sash back into place and gently raise it into the open position.

How to keep cord from going through pulley?

Be careful not to let the end fly up and into the pulley hole. Tie a tight knot in the end and insert a long nail or screw through it to keep the cord from being pulled in through the pulley hole. Remove the old broken cord from the window sash. A nail is usually driven through a knot in the end of the cord and into the side.

How to fix a broken window?

Start the repair by removing the stop bead on one side of the window casing. Hold a broad chisel with the flat toward the jamb and drive it behind the bead at regular intervals to loosen the nails and pry it off. Remove the stop bead completely and pull the nails out. Set it aside.

How does a cast iron window work?

All these types of windows work in the same way, a cast iron weight is attached with a cord to both sides of each sash. The cord runs up to the top of the window jamb, through a pulley channel, and down to the weight inside the jamb. As the sash moves up and down the counterweight keeps it balanced and held in place.

What to do if a cord is broken?

If both cords are broken, remove the sash completely and set it aside while you string the counterweights. If only one cord is broken, pull the sash free from the casing and let the good counterweight hold it off to the side while you work.

How to get cord out of pulley?

Push one end of the cord through the top of the pulley opening and into the cavity. Roll the cord on the pulley wheel with your finger to push it into the cavity behind the jamb. Keep pushing cord through the pulley, letting it bunch up inside the jamb.

How to unhook a sash cord?

Carefully, unhook the sash cords from the loose sash from both sides. In most cases, a knot is tied at the end of the cord, and this portion is inserted into the sash slot. Consequently, you need to ‘pluck’ this portion from the slot for easily detaching the cords.

Why do window cords lose their strength?

However, as will every fallible structural component, the sash cords (mostly made from cotton) tend to lose their strength due to various reasons, ranging from paint effects to just frictional chafing.

How to remove a parting strip?

After removing the parting strip, detach the covers, and reach in for the weights with your hands. Then untie them from the cord. Step 4 –.

How to test new cords?

Tip – You should put the weights back inside the access holes. Then test the new cords by tugging at their ends, which should smoothly pull the weights towards the pulleys.

How to remove paint from a window?

This can be done by gently jamming a utility knife inside the paint ‘line’ connecting the stop with the window jamb (refer to the above image). Then cut through this paint line by moving the knife, and that should loosen up the stop.

How to avoid breaking a window?

1. Some windows can be ‘irritatingly’ wedged in a tight position. Always try to free them in a gentle manner , so as to avoid breaking the sash or the glass. 2. When removing and replacing window components, like the panel cover or the trim, try your best not to damage the wooden material. 3.

Can you replace cords on both sides of a double hung window?

But even if the cord on one side is damaged (and the other is working fine), you should still replace the cords from both the sides. This will maintain a more fluent sliding of the window sash with equal resistance on both sides.

What is the best material for sash cord?

Cotton is the best material for sash cord. My favorite is Samson Spot Cord since it has been around for over a century and is extremely durable. You want to replace your sash cord once and not have to replace cheap substandard rope again and again, so get something proven to last 60+ years like Samson rope.

How do I put a rope on a sash?

Put your sash on the sill and install the new rope into the mortise on the sides of the sash. I like to put a small nail for security to hold the rope in place. Trust me, nothing is more frustrating than putting everything back together and a rope coming off! Test the balance of your sash and troubleshoot any issues.

How to make a pocket door with rope?

Starting with the top sash weight first, run the rope through the eye on the weight and tie a bowline knot so that when in the pocket the weight is floating just above the sill. Cut off any excess rope and re-install the pocket door. Test everything to make sure it moves freely.

How to remove old rope from window sill?

Pull the weights out of the pocket and set them on the sill. Cut the old rope off the weight and pull it out through the pulley or out of the weight pocket and dispose of it. Make sure to keep the same weight for the same sash if you are doing multiple windows, because top sash may be a different weight from bottom sash.

Do you have to replace sash cords?

Now you’ve got new ropes and if you used the right sash cord, you should never have to replace them in your lifetime unless your windows are attacked by a 4-year-old with scissors. Happy restoring!

Can you replace a broken sash cord on a double hung window?

So, you’ve got old double hung windows with broken sash cords that no longer stay open. Don’t fear, it’s not the end of the world. Far from it! Learning to replace ropes on window sash with broken sash cords is one of the easier repairs you can make to an old window. And once you have that new sash cord in, you won’t need another replacement for a good 40-60 years.

How to move a sash from a window?

Remove the sash from the window and place the sash back where you were storing it. Then grab the sash cord and pull down until the sash weight lifts up about one inch from the bottom of the weight cavity floor. Full tension from the weight should be on the rope and you should be able to move it freely.

Where is the knot hole on a window sash?

So I grab the lower sash, make note of the knot hole along the side, and hold it in place in the window opening. In this case, like the upper sash, I hold the sash in place near the top of the window in it's fully open position. Once I'm happy with it, I mark the top of the hole on the jamb.

How to mark a rope with a pencil?

The first mark is at the line you made on the jamb for the sash knot hole and the second is at the based of the pulley, right where the rope would begin to wrap around the pulley wheel.

How to make a rope knot on a sash?

With the weight back in the pocket, grab the upper sash and make pencil mark of where the top of the hole for the rope knot sits on the side of the sash. Lift the sash up into the window in the location where it will sit when fully closed and use a pencil to mark the jamb where the pencil mark on the sash is. ...

What happens when you let go of a sash rope?

Letting go of the lower sash ropes should cause the knot to rest against the upper portion of the pulley.

How does a sash work?

When the sash are raised or lowered, the sash weights, attached to the sash by cording, travel up and down in the hollow channels, allowing the windows to stay open without any other props or stays. It's a very functional system that works quite well.

How many sash are in an 1880s window?

The style is fairly straight forward and contains two sash, an upper and lower, which are movable and counter balanced by large weights that live in cavities beyond the jambs of the window frame.

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