Window Sash Repairs
Window sashes must be checked regularly for mold, mildew and damage. By catching problems before they become serious, you can save money on future repairs.
The sash is an inside frame that can move up and down vertically in windows that open. This article will show you how to do a variety of simple repairs to sash.
Weather Stripping
Wood window sashes give the classic look to your home and, when properly maintained, they can last for a long time. However, they may become damaged or degraded in time due to exposure to the elements and normal wear and tear. Sash repair specialists can restore windows to their original state and keep them looking great longer than replacement windows.
The first step in repair sash windows is to address weather stripping, which is found on both the sash and frame. If it's damaged or worn out, it could cause drafts and other issues. To fix it, start by finding your window brand and glass manufacturer date (etched in the corner of the glass or on the aluminum spacer between panes). Then, remove the sash and mark its height and width to find the appropriate weather stripping replacement to match.
Then, take the sash from the holder and place it on a flat surface to allow you to see all four sides. If your sash was double-hung, you must remove the weights using their ropes that should have fallen into the pocket within the jamb lining. Once you've removed the sash and the weights, use a utility knife to cut off the weather stripping that was formerly in place at the corners, and then take it off by hand or using a putty blade.
After the sash has been cleared, you can replace the parting stops. These are long pieces that divide the sashes. Pam prefers the standard 1/2-inch by 3/4 inch window trimmings from the lumberyard. However, you could also use for a scrap piece of lumber.
After removing the stoppers for parting and trimming them to your desired length then apply a thin layer of glazing compound to the bottom of the sash. Smooth the compound using a putty knife, and let it dry for at least a day. When the putty is fully cure, you can apply a topcoat of acrylic. This will protect the putty and give your sash a new appearance.
Sash Hardware
The hardware that holds the window sashes can wear out with time and use. This could result in windows or doors that is difficult to open or close. It's a good idea to know that replacing or fixing this hardware is usually easy and affordable. If a sash is difficult to operate you can try spraying some oil into the jamb channel and then slide it open to see if this fixes the problem. If not, the problem is most likely due to the balance of the sash and you'll need to remove the sash in order to access this hardware.
Ideally, window sashes must swing open and closed without effort, however, this can be a difficult task if the weights become worn or if the sash meeting rail isn't properly glazed. This issue can be due to various reasons such as the lack of maintenance or a mismatched weight rating.
If the hinges on the window begin to move, this can cause the sash drag, and then eventually to hit the frame at the opposite corner (Photo 1). To resolve this problem, first ensure that the sash is firmly seated in the opening of the frame and then remove it from the window. If the sash is screwed to the hinge arm, you'll have to loosen the hinge arm and replace it (Photo 2). Install the new sash (Photo 3).
Old windows, particularly those in older homes, can be difficult to close and open due to hinges that are sagging and an overall inefficiency. Sometimes just a few easy fixes can allow these windows to operate smoothly once more and help homeowners save money on energy costs.
It is important to have the tools you need before you start. Begin by marking the position of the hinge channel on the frame with a pencil (Photo 1). This will help you get the channel back on the correct position after you've finished. Then, remove the sash and remove the hardware including the beads that separate (Photo 2) and the cords or chains which hold it in place. Soften any hardened putty with the help of a heat gun set at medium and equipped with an shield for the nozzle. Remove the old sash, and store it in an labelled bag.
Sash Weights
No matter if your window sash repair needs are to replace a broken cord or simply to keep your windows functioning and functional, replacing worn-out weights for sash will improve its operation and cut down on energy consumption. Sash weights are composed of heavy lead or iron cylinders that are enclosed inside a concealed cavity, and are connected via a rope to the movable window sash. These weights act as counterbalances, which allows you to open and shut the window without having to use mechanical or electrical devices. If they fail, sashweights are often left unnoticed or disabled by homeowners.
A sash weight that has fallen out of the cavity is difficult to retrieve and you'll need to find a new one that fits properly. You will also require a fresh piece of string, a length of sashcord and a few sashpulleys to secure the new weights to the cord.
window repairs near me made of wood are joined by mortise and tenon joints. The wood pegs that keep the parts together can be removed by a pin punch and hammer. The majority of them have a large diameter on one side and a smaller diameter on the other, which is why it is crucial to take out the smaller-diameter ones first. Sashes that were made later in the century used glue instead of pegs and can be separated by cutting through the glue line using a knife, then tapping the mortised area loose using mallets.
Once the sash is freed then you can take out the sash stop and access the weight pocket. This is usually done via a small hole in the bottom of each jamb. This hole is then covered by an access panel made of wood which can be removed so that you can view the inside of the frame.

After the sash has been stopped and the access panel is removed, you are able to remove the weight you used and replace it. First, weigh the sash to ensure that the weights you have might not be of the right size. After the new weight is in place, tie a string to it and then thread it through the pulley for the sash. Then, you can nail the string to the frame, but only leave a few inches of string sticking out from the head for future adjustment.
Sash Cords
In the majority of old double-hung windows, a chain or cord is affixed to the weights. This supports and keeps the sashes of the jamb balanced. Over time, these cords can get damaged and make it difficult to raise the windows. A new sash cord will restore the ability to move the sash up and down and will keep it in its place when it is opened.
To replace sash cords the first step is to remove the access panels from the jambs. They are typically screwed or nailed in and require removal. You may be able to use a hammer or chisel to remove them, but it's always better 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. Take the narrow beads (also known as "tie rails") out of their grooves with the chisel or flat bar. They are typically wedged into or nailed, but they can be removed, so it's worth taking your time. If the sash is still in place, remove the mortise and tenon joints with the help of a hammer and pin or screwdriver, and then take out the wood pegs on the components. You should now be able to move the sash around freely, though it may require oil if it feels stiff.
Measure the length of sash chain/sash cord required to reach the sash slot on the bottom of the pulley located at the top of the jamb. Cut the chain or cord and then secure it in Step 6 above. You can use either nail, hammer or screws. However, nails are less likely to cause damage.
It's best to leave the original weights in place unless you've purchased a kit that will replace the old counterbalance. They're not costly and simple to install if you purchase them at architectural salvage stores. Based on the size and shape of your window, you might need to install one or two sashweights in order to keep it open.