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Window Sash Repairs

Check the windows sashes regularly for damage, mildew, and mold. By catching these problems early, you can save money on repairs in the future.

The sash is an interior framing that moves vertically upwards or downwards in windows that open. This article will show you how to make several simple sash repairs.

Weather Stripping

Wood window sashes give an elegant look to your home. When properly maintained, they can last for years. However, they may become damaged or degrade as time passes due to exposure to elements and wear and wear and tear. Thankfully, sash repair experts can restore your windows back to their original condition and keep them looking fantastic for much longer than newer replacement windows.

The first step to repair windows sash windows is to address weather stripping, which is found on both the sash and frame. It can cause drafts if it's worn or loose. 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, take the sash off and mark its width and height to find replacement weather stripping to match.

Then, take the sash from its holder, and place it on an even surface that allows you to 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. Once you've taken the sash off, use a utility knife to cut off the weather stripping from the corners. Then, remove it manually or with a putty knife.

Once the sash is clear, you can replace the parting stops. These are long pieces wood that are used to separate the two sashes. Pam prefers to replace them with standard 1/2-inch by 3/4-inch window trim from the lumberyard. However, you can also use scrap wood.

After removing the stoppers for parting and trimming them to the desired length and thickness, apply a thin layer of glazing compound over the bottom of the sash. Smooth the compound with your putty knife and let it dry for at least a day. Once the putty has fully dried, you can apply a topcoat of acrylic. This coating will protect the putty and give your sash a new appearance.

Sash Hardware

The hardware that supports window sashes is susceptible to wear and tear due to time and usage and the result could be a window or door that can't be opened or closed easily. The good thing is that fixing and replacing this hardware is usually relatively easy and affordable. If a sash becomes difficult to operate, try spraying some lubrication into the jamb channel then slide it open to see if it resolves the issue. If not, the issue is most likely due to the sash balance, and you'll have to take off the sash to gain access to the hardware.

Window sashes should open and close without much effort. However, this could be difficult if weights are worn out or the sash connecting rail isn't coated. This issue can be caused by a number of reasons, such as the lack of maintenance or a mismatched weight rating for the specific sash.

If the hinge arms of a window begin to sag, this can cause the sash's to drag and eventually hit the frame in the corner that's opposite the hinge arm (Photo 1). To address this issue, first make sure 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 (Photo 3).

Windows that are old, especially in older homes, can be difficult to open and close due to hinges that are sagging and a general inefficiency. In many cases, a few simple fixes can help these windows function smoothly once more and save homeowners money on energy bills.

It is essential to have the tools you need before you begin. Begin by marking the location of the hinge channel on the frame using pencil (Photo 1). This will assist you in getting the channel back into position correctly after you've completed. Take the sash off, and remove all the hardware, including the parting beads cords, chains, and cords that help to hold the sash. Heat gun with nozzle shield and a medium setting will soften any hardened glue. Remove the old sash, and store it in an labelled bag.

Sash Weights

Whether your window sash repairs are to replace a broken cord or to keep the windows functional, replacing worn out weights for sash will improve its operation and help reduce energy consumption. Sash weights consist of iron or lead cylinders that are enclosed inside a concealed cavity, and are connected via ropes to the moveable window sash. They provide counterbalance, allowing the window to be opened and closed without the use of electrical or mechanical devices. If they fail, sashweights are usually left unnoticed or disabled by homeowners.

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

Mortise and Tenon joints are used to join older wood windows. Pin punch and hammer can be used to remove the wood pegs that hold the components together. The majority of these pegs are big on one side, but smaller on the other. It is crucial to remove first the smaller diameter sides. Sashes that were made later in the century used glue instead of pegs. They can be separated by cutting through the glue line using an instrument, and then tapping the mortised area loose with a mallet.

Once the sash is freed, you can remove the sash stop and access the weight pocket. Usually, this is done through a hole near the bottom of each jamb. This hole is covered with an unfinished wooden panel that can be removed to reveal the interior workings.

After the sash has been stopped and the access panel has been removed, you are able to remove the weight that was previously installed and replace it. Make sure you weigh the sash prior to you do this, since the old weights may be a different size than what is needed. After the new weight is in place, tie a string to it and then thread it through the pulley of the sash. Then, attach the string to your boxed frame. Leave a few inches of space at the top of the string to allow future adjustments.

Sash Cords

The majority of double-hung windows with a history include a chain or cord connected to the weights that keeps the sashes balanced within the jamb. Over time these cords can break, making it impossible to raise the window. A new sash cord will restore the ability to move the sash upwards and downwards and hold it in place when opened.

The first step in replacing cords for sash is to locate and take out the access panels located in the jambs. They are typically fixed or screwed in and must be removed or moved. You may be able to employ a hammer and chisel to prise them off, window sash repairs but it's always better to lay down dust sheets prior to starting any work.

After the access panel has been removed, you can begin working on the sash. Take the narrow beads (also known as "tie rails") out of their grooves with the chisel or flat bar. It is essential to take your time, as these are often stuck or nailed to the floor. If the sash remains in place, remove the mortise and tenon joints using the help of a hammer and pin or screwdriver, then unhook the wood pegs attached to each component. It should now be possible to move the sash back and forth freely, although it may require oil if it feels stiff.

With the sash open, measure enough sash cord/chain to extend from the pulley at the top of the jamb to the sash slot on the bottom. Cut the cord or chain, and then attach it as described in the step 6 above. You can use either nail, hammer or screws. However, nails are less likely than screws to cause damage.

It is recommended to keep the original weights in place unless you've purchased a kit that will replace the counterbalance. They are not expensive and are easy to install if you purchase them at architectural salvage stores. Depending on the size of your window, one or two sashweights might be required to keep it open.