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What Is The Reason? Window Sash Repairs Is Fast Becoming The Hot Trend For 2023
Window Sash Repairs

Window sashes need to be inspected regularly for signs of mold, mildew and other damage. You can save the cost of repairs in the future by catching problems in the early stages, before they become out of control.

The sash is an interior frame that is able to move vertically up and down in windows that are open. This article will show you how to make several simple repairs to sash.

Weather Stripping

Wooden window sashes can give an elegant look to your home. They are also sturdy and last for a long time when they are maintained properly. However, they can become damaged or degraded with time, due to exposure and normal wear. However, sash repair experts can restore your windows to their original condition and keep them looking fantastic for longer than replacement windows.

The first step for repair sash windows is to address weather stripping. It's found on both the sash and frame. It could cause drafts if worn out or loose. Start by identifying the brand of window and the glass manufacturer's date (etched on the glass's corners, or the aluminum spacers between panes). Then, remove the sash and mark its height and width to find new weather stripping that matches.

Then, take the sash from the holder and place it on flat surfaces to allow you to access all four sides. If your sash was double-hung, take out the weights using their ropes that should have fallen into the pocket in the jamb lining. Once you've taken the sash off, use a utility knife to cut off the old weather stripping at the corners, then remove it manually or using a putty knife.

Once the sash is clear, you can replace the parting stops. These are long pieces of wood that divide the two sashes. Pam likes to replace these with standard 1/2-inch-by 3/4-inch window trim from the lumberyard, but you could also use scrap wood.

After removing the parting stops and trimming them to the desired length and thickness, 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 cure and dried, you can apply a topcoat of acrylic. This will protect the putty and give your sash a new appearance.

Sash Hardware

The hardware that supports window sashes is prone to wearing out from age and use 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 very simple and cost-effective. If a sash isn't easy to operate you can try spraying some lubrication into the jamb channel and then slide it open to see if that solves the issue. If not, the problem is likely to be with the sash balance, and you'll need to take out the sash to access the hardware.

Ideally, window sashes should be able to open and close with minimal 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 can be due to many factors such as the lack of maintenance or an unmatched weight rating.

If the hinges on windows begin to slide, this could cause the sash to drag and then hit the frame at the opposite corner (Photo 1). To remedy the issue ensure that the sash is in the proper position within the frame opening, and then take it off. If the sash is screwed onto the hinge arm, take it off the hinge and replace it. (Photo 2). Then, put in the new sash (Photo 3).

Due to sagging hinges, and a general lack in energy efficiency, older windows particularly those in older homes, may be difficult to open or close. In most instances, a few easy repairs can transform these windows into smooth operation for the first time and save the homeowner money on energy bills.

To make these repairs to the sash, it's important to have all of the necessary tools in place before you begin. Start by marking the location of the hinge channel on the frame with pencil (Photo 1). This will make it easier to put the channel in the right position after you've finished. Remove the sash and then remove all hardware, including the parting beads cords, chains, and cords that hold the sash in place. Soften any hardened putty with a heat gun set to medium and equipped with a shield for the nozzle. Remove the old sash, and put it in a bag that is labeled.

Sash Weights

If your window sash repairs are to replace a damaged cord or to keep the windows functional by replacing worn out weights for sash will improve its operation and help reduce the energy cost. Sash weights are hefty lead or iron cylinders that are enclosed in a concealed cavity and connected to the movable sash by rope. They are counterbalancers which allows the window to be shut and opened without using mechanical or electrical devices. If they fail, sashweights are usually neglected or not used by homeowners.

A weight in a sash that has fallen out of the cavity is difficult to recover and you'll need to find a replacement that fits correctly. window repairs will also require a new piece string, a length of sashcord and a few sashpulleys for tying the weights you are replacing to the cord.

Older wood windows are joined with mortise and tenon joints. The wood pegs that keep the parts together can be removed with a pin punch and hammer. The majority of these pegs are big on one side, but smaller on the other. It is important to remove first the smaller diameter sides. Later sashes used glue instead of pins. They can be separated by using a knife or mallets.


Once the sash has been released, you can remove sash stops and gain access to the weight pockets. This is usually done via a small hole in the bottom of each jamb. The hole is surrounded by an unfinished wooden panel that can be removed to reveal the inside workings.

When the sash has been shut off and the access panel is removed, you can take off the weight you used and replace it. First, weigh the sash, as the weights you've got may not be of the right size. After the new weight has been installed, thread the string through the sash pulling mechanism. Then, nail the string to your boxed frame. Leave a few inches protruding at the end of the string to allow for future adjustments.

Sash Cords

The majority of double-hung windows with a history have a cord or chain attached to the weights that helps keep the sashes level within the jamb. Over time these cords can break, making it difficult to raise the window. A new sash cable can restore the ability to move and lower the sash and keep it in position when opened.

The first step to replace cords for sash is to locate and remove the access panels within the jambs. They are usually installed by screws or nails and must be removed or repositioned. It is possible to take them out using a hammer or chisel, but it is always best to lay out dust sheets before starting any work.

After removing the access panel, you can begin to work on the sash. Use a flat bar or chisel to pry the tiny partsing beads out of their grooves. They are usually wedged in or nailed but can be prised free which is why it's worth your time here. If the sash remains in place, break the mortise and tenon joints free with a screwdriver or hammer and then remove each wood peg. The sash should be able to move freely, however it may require some lubrication to feel less stiff.

With the sash in an open position With the sash in an open position, measure the sash chain or cord to extend from the pulley in the top of the jamb to the sash slot on the bottom. Cut the cord or chain and attach it in the previous step. You can either employ a hammer and screws or nails, but nails are less likely to cause damage.

It's best to leave the original weights in place unless you have purchased a kit that will replace the counterbalance that was previously installed. They are not expensive and simple to install if purchased them at architectural salvage stores. Based on the size and shape of your window, you may require one or two sashweights to keep the sash open.

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