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Window Sash Repairs

Regularly inspect the window sashes for damage, mildew, and mold. By catching these problems early you will save money on future repairs.

The sash is an internal frame that can move upwards and downwards in windows that open. This article will teach you how to perform several simple sash repair.

Weather Stripping

Wood window sashes add an elegant look to your home. When properly maintained, they can last for years. However, they can be damaged or deteriorate as time passes due to exposure to the elements and wear and wear and tear. Sash repair experts can restore windows to their original condition and maintain their beauty much longer than replacement windows.

The first step to sash window repairs is addressing weather stripping. It's found on both the sash and frame. If it's loose or worn out, it can lead to drafts, as well as other issues. To fix it, start by determining the brand of your window 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.

Next, remove the sash and set it on a work surface to allow access to all four sides. If your sash has a double-hung, you'll have to take off the weights and their ropes, which should have fallen into the intended pocket in the jamb liner. Once you've removed the sash using a utility knife, you can use it to remove the old weather stripping at the corners. Then, take it off by hand or using a putty knife.

When the sash is clean it is time to replace the parting stops. These are long pieces that split the sashes. Pam likes to replace these with standard 1/2-inch-by 3/4-inch window repair trim from the lumberyard, but you can also use scrap wood.

After removing the stoppers for parting and trimming them to the desired length and thickness, window Repairs apply a thin layer of glazing compound to the bottom of the sash. Smooth the compound using your putty tool, and allow it to dry for at least a day. Once the putty has fully dried it is possible to apply a topcoat of acrylic. This will help protect the putty and give your sash a modern look.

Sash Hardware

The hardware that supports window sashes may wear out over time and use. This could result in a door repair or a window that is difficult to open or close. It's good to know that replacing and repairing this hardware is often straightforward and cost-effective. If a sash isn't easy to operate try spraying oil into the jamb channel, and then slide it open to see if it solves the issue. If not, the problem is likely with the sash balance and you'll need to take out the sash in order to access the hardware.

Ideally, window sashes must swing open and closed with very little effort, but this can be difficult when the weights are worn or if the sash's meeting rail isn't properly coated. This issue can be caused by a variety of things, such as lack of maintenance or by the wrong weight rating for the particular sash.

If the hinges on the window begin to move, this could cause the sash to drag, and then eventually to hit the frame in the opposite corner (Photo 1). To resolve this issue, first make sure the sash is firmly seated in the frame's opening and then take it out of the window. If the sash has been attached to the hinge arm, take it off the hinge and replace it. (Photo 2). Install the new sash next (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 lack of energy efficiency. In most instances, a few easy repairs can transform these windows into smooth operators again and save the homeowner money on energy bills.

To complete these sash repairs it is important to have all the tools needed before you begin. Begin by marking the position of the hinge channel on the frame using a pencil (Photo 1). This will help you to position the channel in the proper place when you are finished. Remove the sash, and then remove the hardware including the beads that separate (Photo 2) and the cords or chains that hold it in place. Soften any hardened putty with a heat gun set to medium and fitted with a shield for the nozzle. Take off the old sash and store it in a bag labeled.

Sash Weights

Sash weights can be replaced to improve the performance of your window sash and reduce energy costs. Sash weights are composed of iron or lead cylindricals that are contained in a concealed cavity and attached by a rope to the movable window sash. They are counterbalancers which allows the window to be shut and opened without the use of electrical or mechanical devices. The sash-weights are typically disregarded or disabled by homeowners and turned into scrap when they fail; therefore, you may need to search for replacements.

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

Older wood windows are joined with mortise and tenon joints. Pin punch and hammer can be used to cut off the wood pegs holding the components together. The majority of them are large on one side, but smaller on the other. It is important to first remove the smaller diameter sides. Sashes that were made later in the century made use of glue instead of pegs and can be separated by cutting the glue line using a knife, then tapping the mortised section loose using mallets.

Once the sash has been removed, you can take off the sash stops and access the pockets for weights. Usually it is done by drilling a hole near the bottom of each jamb. The hole is then covered with an unfinished wooden panel that can be removed to reveal the interior 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. Make sure you weigh the sash prior to you begin, as the weights that were previously used may be a different size than the one you need. Once the new weight has been installed, you can thread a string through the sash pulling mechanism. Then, you can attach the string to your boxed frame. Leave a few inches of space at the head of the string to allow for future adjustments.

Sash Cords

The majority of double-hung windows with a history come with a chain or cord connected to the weights that supports and keeps the sashes in balance within the jamb. As time passes, these cords may 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 opened.

The first step to replace sash cords is to locate and take out the access panels located in the jambs. They are typically attached by nails or screws and must be removed. It may be possible to remove them using a hammer or chisel, however, it is best to lay out dust sheets prior to beginning any work.

After you have removed the access panel, you are able to begin to work on the sash. Utilize a flat bar, or chisel to pull the small parting beads out of their grooves. They are usually wedged in or nailed but can be prised free, so it's worth taking your time. If the sash is still in place, pry the mortise-and tenon joints with a screwdriver or hammer, then remove each wood peg. The sash should be able move around freely now, however it might require some lubrication to feel less stiff.

Measure the length of sash chain/sash cord required to reach the sash slot at the bottom of the pulley on the top of the jamb. Cut the chain or cord and attach it in the previous step. You can do this with a hammer, nails or screws. However, nails are less likely to cause damage.

It is best to keep the original weights if you've purchased a kit that will replace the counterbalance that was previously installed. They are not expensive and are easy to install if you buy them at architectural salvage stores. Based on the size of your window one or two sash weights may be needed to keep it in an open position.