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Window Sash Repairs

Make sure to check the sashes of your windows regularly for signs of damage, mildew and mold. You can avoid the cost of repairs in the future by catching the issues early on, before they become out of control.

The sash is the interior framing that moves vertically either up or down in windows that open. This article will demonstrate how to perform several simple repairs to the sash.

Weather Stripping

Wooden window sashes are a great way to add an elegant appearance to your home. They are also durable and last for a long time provided they are properly maintained. However, they can be damaged or degraded over time because of exposure to the elements and normal wear and tear. However, sash repair experts can bring your windows back to their original condition and maintain their appearance for longer than replacement windows.

The first step for repair sash windows is to address weather stripping, which can be found on both the sash and frame. It could cause drafts if worn or loose. 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). Then, remove the sash and mark its width and height so that you can locate new weather stripping that matches.

Then, take it off and set it on a work surface to allow access to all four sides. If your sash is double glazed window repairs-hung, you'll have to remove the weights as well as their accompanying ropes which should have slipped into the intended pocket in the jamb liner. After removing the sash using the utility knife, remove the weather stripping from the old sash by hand or using the putty blade.

Once the sash is clear it is time to replace the parting stops. These are long pieces wood that separate the two sashes. Pam prefers to use standard 1/2-inch by 3/4-inch window trim from the lumberyard. However, you could substitute for a scrap piece of lumber.

After removing the stoppers for parting and trimming them to your desired length, apply a thin layer of glazing compound over the bottom of the sash. Smooth the compound with your putty knife, and then let it dry for at least a few days. When it's completely dried and dried, apply a second coat of acrylic latex paint. This will protect the putty and give your sash an updated appearance.

Sash Hardware

The hardware that supports the windows sashes can become worn out over time and with use. This can result in the window or door that is difficult to open or close. The good news is that fixing and replacing this hardware is typically quite simple and inexpensive. If a sash isn't easy to operate, try spraying some grease into the jamb channel and then slide it open to see if this solves the issue. If not, the problem is likely to be with the sash balance and you'll need to remove the sash to access this hardware.

Ideally, window sashes must be able to open and close with minimal effort but this is a difficult task when the weights wear out or if the sash that joins rail isn't properly glazed. This can be due to many factors such as the lack of maintenance or an unmatched weight rating.

If the hinges on a window begin to sag this could cause the sash to drag, and then eventually to hit the frame in the opposite corner (Photo 1). To address this problem, first ensure that the sash is firmly seated in the frame's opening and then remove it from the window. If the sash has been screwed to the hinge arm, you'll need to remove the hinge arm and replace it (Photo 2). Install the new sash next (Photo 3).

Windows that are old, especially in older homes, may be difficult to open and close because of sagging hinges and an overall inefficiency. Sometimes it is a matter of making a few minor adjustments that can help these windows function smoothly and help homeowners save money on their energy bills.

To complete these repairs to sash it is essential to have all of the necessary tools lined up before you begin. Begin by marking the location of the hinge channel on the frame using a pencil (Photo 1). This will allow you to get the channel back on position correctly after you've completed. Take the sash off and then remove all hardware, including the parting beads, cords, and chains that hold the sash in place. A hot gun with nozzle shield and a medium setting can soften any hardened putty. Remove the old sash and keep it in a bag with a label.

Sash Weights

Whether your window sash repairs are to replace a broken cord or just to ensure that the windows are functional, replacing worn out weights for sash will improve its operation and help reduce energy consumption. Sash weights consist of heavy lead or iron cylinders that are encased in a hidden cavity and are connected via ropes to the moveable window sash. These weights function as counterbalances, allowing you to open and close the window without having to use mechanical or electrical devices. The sash-weights are typically ignored or discarded by homeowners and turned into scrap when they break; therefore you might need to locate replacements.

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

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

After the sash is removed, you can take off the sash stops and access the weight pockets. This is usually done via a small hole at the bottom of each jamb. This hole is then covered by an access panel made of wood that can be cut off to let you view the inside of the frame.

Once the sash is stopped and the access panel has been removed, you are able to remove the weight you used and replace it. Be sure to weigh the sash first to ensure that the weights you have may not be the right size. After the new weight is in place, tie a string to it and then thread it through the sash pulley. Then attach the string to the frame, but leave a few inches of string hanging from the head for future adjustments.

Sash Cords

In the majority of double-hung windows the chain or cord is affixed to the weights. This keeps the sashes in the jamb balanced. As time passes, these cords may break, making it impossible to raise the window. A new sash cable can restore the ability to move and lower the sash and keep it in place when opened.

To replace sash cords, the first step is to remove the access panels from the jambs. They are typically screwed or nailed into and require removal. You might be able to use a hammer or chisel for removing them but it's best to lay down dust sheets before commencing any work.

After you have removed the access panel, you are able to begin working on the sash. Make the small parting beads (also known as "tie rails") out of their grooves with a chisel or flat bar. It is important to be patient, as these are often placed in a wedge or Window Sash Repairs nail. If the sash is in place, pry out the mortise and tenon joints using a hammer and pin punch or screwdriver, then unhook the wood pegs that are on the components. It should now be possible to move the sash around freely, although it may require oiling if it seems stiff.

With the sash in an open position Take a measurement of the sash chain to extend from the pulley at the top of the jamb to the sash slot on the bottom. Cut the chain or cord and fix it as described in the previous step. You can use a hammer and nail or screws, but nails are less likely to cause damage.

If you don't have an item that replaces the old counterbalance system it's recommended to keep the original weights for balancing in place. They're not costly and are easy to install if you buy them at architectural salvage stores. Depending on the dimensions and shape of your window you might need to install one or two sashweights in order to keep it open.