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What Is Window Sash Repairs And How To Use It
Window Sash Repairs

Window sashes must be regularly checked for mold, mildew and other damage. You can reduce the cost of repairs in the future by catching the issues early, before they get out of hand.

The sash is an internal frame that can move vertically up and down in windows that open. in the know will teach you how to make several simple repairs to sash.

Weather Stripping

Wood window sashes give an elegant look to your home and, when properly maintained, they will last for many years. However, they may become damaged or degrade as time passes due to exposure to elements and normal wear and wear and tear. Sash repair experts can restore windows back to their original condition and maintain their beauty 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 can cause drafts if it's worn or loose. Begin by identifying the brand of window and the manufacturer's date (etched on the corner of the glass or on the aluminum spacers between panes). Take the sash off, and mark its size and width so that you can purchase replacement weather stripping that matches.

Then, remove the sash and place it on a surface to allow access to all four sides. If your sash was double-hung, take out the ropes and weights that should be buried within the jamb lining. After you've removed the sash using a utility knife, you can use it to cut off the weather stripping that was formerly in place at the corners. Then, remove it by hand or with a putty knife.

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

After removing the stopper for the parting and trimming it to length, apply a thin coat of glazing compound on the bottom of the sash. Smooth out the compound using your putty knife and let it dry for at least a few days. After it has fully dried and dried, apply a second coat of acrylic latex paint. This will help protect the putty and give your sash a fresh appearance.

Sash Hardware

The hardware that supports window sashes is prone to wearing out from time and usage, and the result can be a window or door that won't open or close easily. The good thing is that fixing and replacing this hardware is typically quite simple and inexpensive. If you are having trouble opening the sash, spray some oil into the jamb channel. Then slide the sash up and open to see if it resolves the problem. If not, the problem is likely with the sash balance and you'll have to take off the sash in order to access this hardware.


Sashes for windows should be able to be able to open and close with minimal effort. However, this may be a challenge if the weights have been worn out or the sash-to-rail connecting rail isn't glazed. This issue could be caused by a variety of factors, including the lack of maintenance or an incorrect weight rating for the particular sash.

If the hinges on windows begin to slide, this could cause the sash to drag and eventually hit against the frame at the opposite corner (Photo 1). To fix this problem, first ensure that the sash is firmly seated in the opening of the frame and then remove it from the window. If the sash is secured to the hinge arm, you'll need to unscrew the hinge arm and replace it (Photo 2). Install the new sash next (Photo 3).

Old windows, particularly those in older homes, may be difficult to open and close due to hinges that are sagging and general inefficiency. In many instances, a few easy repairs can turn these windows into smooth operation and save homeowners cash on energy costs.

To make these repairs to sash it is essential to have all of the necessary tools lined up before you begin. Mark the hinge channel location on the frame (Photo 1) with a pencil. This will help you get the channel back in the correct 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. The nozzle shield of the heat gun and medium setting will soften any putty that has been hardened. Remove the old sash and put it in a bag with a label.

Sash Weights

No matter if your window sash repair needs are to replace a damaged cord or simply to keep the windows functional and functional, replacing worn-out weights for sash will improve its operation and help reduce the energy cost. Sash weights are hefty lead or iron cylinders, which are enclosed in a hidden cavity and attached to the movable the sash with rope. They function as counterbalances, allowing you to open and close the window without the need for mechanical or electrical devices. When they fail, sashweights are often left unnoticed or disabled by homeowners.

A weight in a sash that has fallen out of the cavity is difficult to get back It is therefore important to find a replacement that fits properly. You will also require a fresh piece of string, a length sashcord and a few sashpulleys for tying the weights you are replacing to the cord.

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

Once the sash is freed and removed, you can take off the sash stop and access the weight pocket. Usually this is accomplished by drilling a hole near the bottom of each jamb. The hole is surrounded by an unfinished wooden panel that can be removed to reveal the inside workings.

After the sash has been stopped and the access panel removed, you'll be able to remove the weight of the old sash and replace it with the new. Be sure to weigh the sash prior to you do this, since the old weights could be different in size from what you require. Once the new weight is installed you can tie a string around it and then thread it through the pulley for the sash. Then attach the string to the boxed frame, but leave a few inches of string protruding from the head for future adjustment.

Sash Cords

In the majority of double-hung windows, a cord or chain is affixed to the weights. This keeps the sashes in the jamb level. Over time, these chains may become damaged and make it impossible to raise windows. A new sash cord can restore the ability to move the sash upwards and downwards and keep it in place when opened.

The first step to replace sash cords is to locate and remove the access panels in the jambs. They are usually fixed or screwed in and must be removed or moved. You could use a hammer or chisel to prise them off however, it is always best to lay down dust sheets prior to commencing 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 pry the small parting beads from their grooves. They are usually wedged in or nailed but can be snipped out which is why it's worth your time. If the sash remains in place, pry the mortise-and-tenon joints out with a screwdriver or hammer, then remove each wood peg. The sash should be able to move freely, however it may need some lubrication to make it feel less stiff.

Take a measurement of the length of sash cord/chain needed to reach the sash slot at the bottom from the pulley at the top of the jamb. Cut the cord/chain and then fix it as described in Step 6 above. You can use a hammer, nails, or screws. However nails are less likely than screws to cause damage.

Unless you've bought a kit that replaces the old counterbalance system it's recommended to keep the original weights for balancing in place. They're not expensive and easy to install if purchased them from architectural salvage stores. Depending on the dimensions and shape of your window, you may require one or two sashweights in order to keep it open.

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