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Window Sash Repairs

Window sashes must be checked regularly for mold, mildew and other damage. If you catch these issues early, you can save money on repairs in the future.

The sash is an inside frame that can move vertically up and down in windows that open. This article will teach you how to do simple sash repairs.

Weather Stripping

Wood upvc window repair sashes add the classic look to your home. When properly maintained, can last for many years. However, they can become damaged or degrade in time due to exposure to elements and normal wear and tear. However, sash repair experts can restore your windows to their original condition and maintain their appearance for much longer than newer replacement windows.

The first step for sash window repairs is addressing weather stripping. It's found on both the sash and frame. If it's worn or loose, out, it can lead to drafts, as well as other issues. To fix it, begin by determining the brand of your window and the date on which the glass was manufactured (etched in the corner of the glass or on the aluminum spacer between panes). Remove the sash and mark its width and height so that you can find a new weather stripping that is compatible with the original.

Next, remove the sash and set it on a work surface to allow access to all four sides. If the sash is double-hung, you must remove the weights with their ropes that should fall into the pocket inside the jamb lining. After you have removed the sash using the utility knife, you can remove the old weather stripping by hand or with a putty blade.

Once the sash has been cleared, you can replace the parting stops. These are long pieces that divide the sashes. Pam prefers to use the standard 1/2-inch by 3/4-inch window trimmings from the lumberyard. However, you could also use a scrap piece of wood.

After removing the parting stops and trimming them to your desired length then apply a thin layer of glazing compound on the bottom of the sash. Smooth out the compound using your putty knife, and then let it dry for at least a day. After the putty has completely dried, you can apply a topcoat of acrylic. This will protect the putty and give your sash a modern appearance.

Sash Hardware

The hardware that holds window sashes is susceptible to wear and tear from age and use, and the result can be a window or door that won't open or close easily. The good news is that repairing and replacing this hardware is generally very simple and cost-effective. If a sash is difficult to operate try spraying lubrication into the jamb channel then slide it open to see if that solves the issue. If the problem persists, it is most likely to be due to the sash's balance. You'll need to remove the window sash to reach this hardware.

The ideal situation is for window sashes to be able to open and close with very little effort, but this is a difficult task when the weights wear out or if the sash that joins rail isn't properly glazed. This problem can be due to various reasons that include the lack of maintenance or a mismatched weight rating.

If the hinge arms of a window are beginning to slide, this could cause the sash's to drag and eventually hit the frame in the corner in the opposite direction of the hinge arm (Photo 1). To correct the issue, make sure that the sash is in the proper position within the frame opening and then take it off. If the sash is secured to the hinge arm, you'll need to remove the hinge arm and replace it (Photo 2). Install the new sash (Photo 3).

Due to sagging hinges, and a general lack in energy efficiency, windows that are old particularly those in older homes, can be difficult to open or close. Sometimes it is a matter of making a few minor adjustments that can allow these windows to operate smoothly again and save homeowners money on energy costs.

To make these sash repairs it is important to have all of the tools needed before you begin. Start by marking the location of the hinge channel on the frame with a pencil (Photo 1). This will make it easier to place the channel in the proper location after you've completed. Remove the sash and take off the hardware including the parting beads (Photo 2) and the cords or chains that secure it. Soften any hardened putty with a heat gun set to medium and fitted with an shield for the nozzle. Remove the old sash and place it in a bag with a label.

Sash Weights

Sash weights are able to be replaced to enhance the efficiency of your window sash, and also reduce the energy cost. Sash weights consist of heavy lead or iron cylinders that are encased in a concealed cavity and are connected via ropes to the moveable window Repair sash. These weights function as counterbalances, which allows you to open and close the window without the need for mechanical or electrical devices. When they fail, sashweights are usually ignored or disabled by homeowners.

A sash weight that has fallen out of the cavity is difficult to recover It is therefore important to find a replacement that fits properly. You will also require a fresh piece of string, a length of sashcord and a few sashpulleys to secure the weights you are replacing to the cord.

Older wood windows are joined using mortise and tenon joints. The wood pegs that keep the components together can be removed with the use of a pin punch and hammer. The majority of them have an enormous diameter on one side and a smaller size on the other side, so it is important to remove the smaller-diameter ones first. Later sashes used glue instead of pins. They can be separated with a knife and a mallet.

Once the sash has been released, you can remove sash stops and access the weight pockets. This is usually done through tiny holes in the bottom of each jamb. This hole is then covered by a wooden access panel that can be cut off so that you can see the inner workings of the frame.

When the sash has been shut off and the access panel is removed, you are able to remove the weight that was previously installed and replace it. Be sure to weigh the sash prior to you do this, since the old weights could be different in size from what is needed. After the new weight is in place, tie a string to it and thread it through the sash pulley. Then, nail the string to the boxed frame. Leave a few inches 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 that keeps the sashes balanced within the jamb. As time passes, these cords may break, making it difficult to raise the window. A new sash cord will restore the ability to move the sash up and down and keep it in 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 need to be removed. You may be able to employ a hammer and chisel to prise them off but it's best to lay down dust sheets prior to starting any work.

Once the access panel is removed, you can begin working on the sash. Utilize a flat bar or chisel to pull the small partsing beads out of their grooves. These are often wedged in or nailed but can be removed which is why it's worth your time. If the sash is in place, remove the mortise and tenon joints using the help of a hammer and pin or screwdriver, then remove the wood pegs that are on the components. The sash should move around freely now, however it might require some lubrication to make it feel less stiff.

Take a measurement of the length of the sash chain or sash cord needed to reach the sash slot on the bottom from the pulley on the top of the jamb. Cut the cord/chain and then attach it in the previous step. You can use a hammer and screws or nails, but nails are less likely to cause damage.

It's best to leave the original weights if you have purchased a kit to replace the counterbalance that was previously installed. They're not costly and easy to install if you buy them from salvage shops for architectural use. Based on the size of your window, one or two sash weights could be needed to keep it open.