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Window Sash Repairs

Sashes for windows must be inspected regularly for signs of mold, mildew and other damage. You can reduce the cost of repairs in the future by catching the issues in the early stages before they become too much.





The sash is an internal frame that can move up and down vertically in windows that are open. This article will show you how to do easy repairs to your sash.

Weather Stripping

Wood window sashes add a classic aesthetic to your home. If properly maintained, they can last for many years. However, they may become damaged or deteriorate in time due to exposure to elements and normal wear and wear and tear. Sash repair specialists can restore windows to their original condition and maintain their appearance longer than replacement windows.

The first step for repair sash windows is to address weather stripping, which can be found on both the sash as well as the frame. If it's loose or worn out, it can cause drafts and other issues. To fix it, begin by determining the brand of your window and the date of manufacture for the glass (etched in the corner of the glass or on the aluminum spacer between panes). Remove the sash and mark its size and width so that you can find a replacement weather stripping that matches.

Then, you can remove the sash from its holder, and place it on an even surface that allows you to reach all four sides. If your sash has been double-hung, remove the weights using their ropes that should fall into the pocket inside the jamb lining. After removing the sash using the utility knife, remove the weather stripping from the old sash by hand or with a putty blade.

When the sash is clean and clean, you can put in the parting stops. These are long pieces that divide the sashes. Pam likes to replace these with standard 1/2-inch-by - 3/4-inch window trim from the lumberyard. However, you could also use scrap wood.

After removing the stoppers for parting and cutting them to the desired length then apply a thin layer of glazing compound over the bottom of the sash. Smooth the compound using your putty tool, and allow it to dry for at least one day. When it's completely dried then apply a top coat of acrylic latex paint. This will help protect the putty and give your sash a modern appearance.

Sash Hardware

The hardware that supports window sashes can wear out over time and use. This can result in windows or doors that is difficult to open or close. It's good to know that replacing and repair of this hardware is typically straightforward and cost-effective. If window repair having difficulty opening the sash, spray some grease into the jamb channel. Then, you can slide the sash out to see if that fixes the problem. If not, the issue is most likely due to the balance of the sash and you'll have to take off the sash to access this hardware.

Ideally, window sashes must be able to open and close with very little effort, but this can be a difficult task when the weights wear out or if the sash's meeting rail isn't properly glazed. This issue can be caused by a number of reasons, such as the lack of maintenance or the wrong weight rating for the particular sash.

If the hinges on the window begin to move, this could cause the sash to drag and eventually hit against the frame at the opposite corner (Photo 1). To resolve this problem, first ensure that the sash fits squarely in the frame's opening and then remove it from the window. If the sash is attached to the hinge arm, remove the hinge and replace it. (Photo 2). Then, put in the new sash (Photo 3).

Due to hinges that are sagging, and a general lack in energy efficiency, older windows especially in older homes, can be difficult to open and close. In window repair , a few simple repairs can turn these windows into smooth operation and save homeowners money on energy costs.

It is crucial to have the tools you need before you begin. Begin by marking the location of the hinge channel on the frame with a pencil (Photo 1). This will assist you in getting the channel back into place correctly when you're finished. Remove the sash, and remove all the hardware, including the beads for parting cords, chains, and cords that keep the sash in place. Heat gun with nozzle shield and medium setting will soften any hardened putty. Take off the old sash and keep it in a bag labeled.

Sash Weights

Sash weights can be changed to improve the performance of your window sash and reduce the cost of energy. Sash weights are heavy, lead or iron cylinders, which are enclosed in a concealed cavity and attached to the movable the sash with rope. These weights act as counterbalances, allowing you to open and close the window without requiring mechanical or electrical devices. If they fail, sashweights tend to be ignored or disabled by homeowners.

A weight in a sash that has fallen out of the cavity is difficult to retrieve, so you will want to find a replacement that fits properly. You will also need a new piece of string, a length sash cord, and a few sash pulleys to tie the new sash weights onto the sash cord.

Older wood windows are joined by mortise and tenon joints. The wood pegs that hold the parts together can be removed by pin punches and hammers. Most of them have a large diameter on one side and a smaller size on the other side, so it is essential to remove the smaller-diameter sides first. Later sashes utilized glue instead of pins. They can be cut by using a knife and mallet.

Once the sash has been 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 then covered by a wooden access panel that can be cut off so that you can observe the inner workings of the frame.

Once the sash is stopped and the access panel has been removed, you can remove the weight you used and replace it. Make sure you weigh the sash prior to you begin, as the old weights may be different in size from what you require. Once the new weight is installed then tie a string to it and thread it through the sash pulley. Then, attach the string to the boxed frame. Leave a few inches protruding at the end of the string to allow for future adjustments.

Sash Cords

Most old double-hung windows come with a chain or cord attached to the weights which helps keep the sashes level within the jamb. Over time, these chains may become damaged and render it impossible to raise windows. A new sash cable will restore the ability to raise and lower the sash and keep it in place when it is opened.

The first step to replace sash cords is to find and remove the access panels in the jambs. They are usually screwed or nailed in and must be removed. It may be possible to take them out using an axe or hammer, but it is always best to lay out dust sheets prior to beginning any work.

After removing the access panel, you are able to begin to work on the sash. Use a flat bar or chisel, to pry the small parting beads out of their grooves. It is important to be patient as they're often placed in a wedge or nail. If the sash is still in place, break the mortise and tenon joints free with a hammer or screwdriver and then remove each wood peg. You should now be able to move the sash back and forth without difficulty, though it may require oil if it feels stiff.

Take a measurement of the length of sash chain/sash cord required to reach the sash slot on the bottom of the pulley on the top of the jamb. Cut the chain or cord and secure it as in the previous step. You can do this with a hammer, nails, or screws. However, nails are less likely than screws to cause damage.

It is recommended to keep the original weights if you have purchased a kit to replace the old counterbalance. They are not expensive and are easy to install if you purchase them from salvage shops for architectural use. Depending on the size of your window one or two sashweights might be required to keep it open.