10 Unexpected Window Sash Repairs Tips Window Sash Repairs

Make sure to check the sashes of your windows regularly for signs of damage, mildew and mold. By catching problems before they become serious, you can save money on future repairs.

The sash is the internal framing that moves vertically up or down in windows that are open. This article will teach you how to do simple repairs to sash.

Weather Stripping

Wooden window sashes can give a classic look to your home. They are also durable and will last for many years when they are maintained properly. However, they can become damaged or degraded with time due to exposure and normal wear. Sash repair experts can restore windows to their original condition and keep them looking great longer than replacement windows.

Weather stripping is the first thing to address when repairing sash windows. It is located on both the frame and sash. It can cause drafts if it's damaged or is loose. To fix it, begin by determining your window's brand and the date on which the glass was manufactured (etched in the corner of the glass or on the aluminum spacer between panes). Then, take the sash off and mark its height and width so that you can locate the appropriate weather stripping replacement to match.

Then, remove the sash and place it on a surface so that you can reach all four sides. If your sash was double-hung, take out the weights using their ropes that should have fallen into the pocket within the jamb lining. Once you've removed the sash, use a utility knife to remove the weather stripping from the corners, then remove it manually or with a putty knife.

After the sash has been cleared it is time to replace the parting stops. These are long pieces that split the sashes. Pam likes to replace them with standard 1/2-inch-by - 3/4-inch window trim from the lumberyard, however you could also use a piece of scrap wood.

After removing the parting stops and cutting them to the desired length and thickness, apply a thin layer of glazing compound to the bottom of the sash. Smooth the compound using your putty knife, and let it dry for at least a day. Once the putty has fully dried it is possible to apply a topcoat of acrylic latex. This will help protect the putty, and give your sash a modern look.

Sash Hardware

The hardware that holds window sashes is susceptible to wear and tear due to age and use and the result could be a window or door that isn't able to open or close easily. It's a good idea to know that replacing and repair of this hardware is typically straightforward and cost-effective. If a sash is difficult to operate you can try spraying some lubrication into the jamb channel then open it to see if it solves the issue. If not, the issue is likely with the balance of the sash and you'll need to take out the sash in order to access the hardware.

Window sashes should be able to open and close with minimal effort. However, this can be difficult if weights are worn out or the sash meeting rail is not properly coated. This problem could be caused by many factors such as an absence of maintenance or a mismatched weight rating.

If the hinges on a window begin to sag this can cause the sash drag and then hit the frame in the opposite corner (Photo 1). To correct the issue make sure the sash is in the proper position within the frame opening and then remove it. If double glazing Wisbech is screwed onto the hinge arm, take it off the hinge and replace it. (Photo 2). Then, put in the new sash (Photo 3).


Due to sagging hinges, and a general lack in energy efficiency, old windows especially in older homes, can be difficult to open and close. In most cases, a few simple repairs can turn these windows into smooth operators and save homeowners money on energy bills.

In order to make these repairs to the sash it is essential to have all the necessary tools lined up before you begin. Start by marking the location of the hinge channel on the frame with pencil (Photo 1). This will make it easier to place the channel in the proper place when you are finished. Remove the sash, and then remove the hardware, including the parting beads (Photo 2) and the chains or cords that hold it in place. Heat gun with nozzle shield and medium setting will soften any hardened putty. Take off the old sash and put it in a bag labeled.

Sash Weights

No matter if your window sash repair needs are to replace a broken cord or just to keep the windows functional by replacing worn out weights on sash can improve sash operation and cut down on energy consumption. Sash weights are heavy, lead or iron cylinders that are enclosed in a concealed cavity and linked to the moveable sash by rope. They are counterbalancers, allowing the window to be shut and opened without the need for mechanical or electrical devices. The sash-weights are typically neglected or ignored by homeowners and then turned into scrap when they break; therefore you may have to find replacements.

It's difficult to retrieve an sash-weight which has fallen from the cavity, so you'll need to find one that fits correctly. You will also require an additional piece of string, a length of sash cord and some sash pulleys that will tie the new sash weights onto the sash cord.

Older windows made of wood are joined with mortise and tenon joints. The wood pegs that keep the parts together can be removed using a pin punch and hammer. The majority of these pegs are large on one side and smaller on the other. It is crucial to first remove the smaller diameter sides. Later sashes used glue instead of pins. They can be separated by using a knife and a mallet.

After the sash is removed, you can take off the sash stops and gain access to the weight pockets. Usually, this is done through an opening at the bottom of each jamb. This hole is covered with the wooden panel which can be removed to reveal the inner workings.

After the sash has been stopped and the access panel removed, you'll be able to take off the weight from the sash and replace it with the new. Make sure you weigh the sash before you do this, as the old weights could be different sizes than what you require. After the new weight is installed then tie a string to it and then thread it through the pulley for the sash. Then, you can attach the string to your boxed frame. Leave a few inches at the end of the string to allow future adjustments.

Sash Cords

The majority of double-hung windows with a history come with a chain or cord attached to the weights which keeps the sashes level within the jamb. As time passes, these cords may break, making it impossible to raise the window. A new sash cord can restore the ability to move the sash up and down and keep it in position when it is opened.

To replace sash cords the first step is to remove the access panels from the jambs. They are typically nailed or screwed in and must be removed or relocated. You might be able to use a hammer or chisel for removing them but it's best to lay down dust sheets prior to starting any work.

After you have removed the access panel, you are able to begin working on the sash. Prise the narrow parting beads (also known as "tie rails") out of their grooves using flat bar or chisel. It is essential to take your time as they're often placed in a wedge or nail. If the sash is in place, remove the mortise and tenon joints with a hammer and pin punch or screwdriver, then remove the wood pegs on each component. The sash should be able move freely now, but it might require some lubrication to feel less stiff.

Measure the length of the sash chain or sash cord needed to reach the sash slot on the bottom from the pulley at the top of the jamb. Cut the cord/chain and then secure it as in the previous step. You can use either nail, hammer or screws. However nails are less likely to cause damage.

It's best to leave the original weights if you've purchased a kit that will replace the old counterbalance. They are not expensive and easy to install if you buy them at architectural salvage stores. Depending on the dimensions and shape of your window you may need to use one or two sashweights in order to keep the sash open.