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Window Sash Repairs Tools To Simplify Your Daily Life
Window Sash Repairs

Sashes for windows must be regularly checked for mold, mildew and damage. You can avoid the cost of repairs in the future by catching problems in the early stages, before they become too much.

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

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Wood window sashes give the classic look to your home. When properly maintained, they will last for a long time. However, they can get damaged or deteriorated over time due to exposure or normal wear. Sash repair specialists can restore windows to their original state and keep them looking great much longer than replacement windows.

Weather stripping is the primary aspect to consider when you are repairing sash windows. It's located on both the frame and the sash. It can cause drafts if it's worn or loose. Start by identifying the window's brand and the glass manufacturer's date (etched on the glass's corners or the aluminum spacers between panes). Then, take the sash off and mark its height and width to find the appropriate weather stripping replacement to match.

Then, remove the sash and place it on a surface so you can access all four sides. If your sash has been double-hung, remove the weights with their ropes that should fall into the pocket within the jamb lining. After you've removed the sash using a utility knife, you can use it to remove the old weather stripping at the corners, and then remove it manually or with a putty knife.

Once the sash is clear, you can replace the parting stops. These are long pieces that split the sashes. Pam prefers the standard 1/2-inch by 3/4-inch window trimmings from the lumberyard. However, you could substitute for a scrap piece of lumber.

After removing the parting stop and trimming it to length, apply a thin coat 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. After it has fully dried, apply a top coat of acrylic latex paint. This coating will protect the putty and give your sash a fresh look.

Sash Hardware

The hardware that supports window sashes susceptible to wear and tear from time and usage and the result could be a door or window that won't open or close easily. The good thing is that fixing and replacing this hardware is generally quite simple and inexpensive. If you are having trouble opening a sash, spray some lubricant into the jamb channel. Then, you can slide the sash out to see if that fixes the problem. If not, the problem is most likely due to the sash balance, and you'll have to take off the sash in order to access this hardware.


The ideal situation is for window sashes to move open and shut without effort, but this can be a difficult task if the weights become worn or if the sash's meeting rail isn't properly coated. This problem could be caused by many factors such as a lack of maintenance and an unmatched weight rating.

If the hinge arms of a window are starting to slide, this could cause the sash's to drag and eventually strike the frame in the corner opposite the hinge arm (Photo 1). To remedy the issue ensure that the sash is aligned in the frame's opening and take it off. If the sash is screwed to the hinge arm, you'll have to loosen the hinge arm and replace it (Photo 2). Then, you can install the new sash (Photo 3).

Old windows, especially those in older homes, can be difficult to open and close, because of sagging hinges and an overall inefficiency. Sometimes, a few simple fixes can make these windows operate smoothly again and help homeowners save money on energy costs.

To complete these sash repairs it is important to have all of the tools needed before you begin. Begin by marking the position of the hinge channel on the frame with a pencil (Photo 1). This will allow you to put the channel in the proper position after you've finished. Then, 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 an electric heat gun set to medium and equipped with a shield to block the nozzle. Take off the old sash and store it in a bag with a label.

Sash Weights

Sash weights can be changed to improve the performance of your window sash and reduce the energy cost. Sash weights are heavy lead or iron cylinders enclosed in a hidden cavity and connected to the movable the sash with a rope. These weights provide counterbalance that allows the window to be opened and closed without using mechanical or electrical devices. When they fail, sashweights tend to be ignored or disabled by homeowners.

A weight from a sash that fell out of the cavity is difficult to recover, so you will want to find a replacement that fits correctly. You will also need a new piece of string, a length the sash cord, as well as some sash pulleys to tie the new sash weights to the sash cord.

Mortise and Tenon joints can be used to join old wood windows. Pin punch and hammer can be used to cut off the wood pegs holding the components together. The majority of these pegs are big 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 separated by using a knife and mallets.

After the sash is removed then you can take out the stopper on the sash and get access to the weight pocket. This is usually done through a small hole at the bottom of every jamb. The hole is surrounded by the wooden panel which can be removed to reveal the inside workings.

Once the sash is stopped and the access panel has been removed, you are able to remove the weight that was previously installed and replace it. First, weigh the sash to ensure that the weights you have may not be the right size. After the new weight has been installed, thread a string through the sash pulling mechanism. Then, attach the string to your boxed frame. Leave a few inches protruding at the head of the string to allow future adjustments.

Sash Cords

The majority of double-hung windows with a history include a chain or cord attached to the weights which supports and keeps the sashes in balance within the jamb. Over time, these cords could break, making it difficult to raise the window. A new sash cable will give you the ability to raise and lower the sash, and keep it in place when it is opened.

The first step in replacing sash cords is to locate and take out the access panels located in the jambs. They are typically screwed or nailed into and must be removed. It may be possible to take them out using the hammer or chisel however, it is best to lay out dust sheets before beginning any work.

After you have removed the access panel, you are able to begin working on the sash. Utilize a flat bar or chisel, to pry the narrow parting beads from their grooves. They are typically wedged into or nailed but can be prised free, so it's worth taking your time here. If the sash remains in place, pull the mortise-and-tenon joints out with a hammer or screwdriver and then take out each wood peg. The sash should move freely, however it may need some lubrication to feel less stiff.

With the sash in an open position, measure enough sash cord/chain to reach from the pulley at the top of the jamb to the sash slot on the bottom. Cut the cord or chain and secure it as in Step 6 above. You can use either a hammer, nails, or screws. However, nails are less likely than screws to cause damage.

It is best to keep the weights that came with the original counterbalance unless you have purchased a kit that will replace the counterbalance that was previously installed. They're not expensive and easy to install if purchased them at architectural salvage stores. Based on the dimensions and shape of your window you might need to install one or two sashweights in order to keep the sash open.

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