The Little-Known Benefits Of Window Sash Repairs

· 6 min read
The Little-Known Benefits Of Window Sash Repairs

Window Sash Repairs

Window sashes must be regularly checked for mold, mildew, and damage. If you catch these issues early you will save money on future repairs.

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

window repair near me  Stripping

Wood window sashes provide an elegant look to your home. When properly maintained, they will last for a long time. However, they may become damaged or degrade in time because of exposure to the elements and normal wear and tear. 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 to repair sash window damage is to fix weather stripping, which can be found on both the sash and frame. It could cause drafts if worn or loose. To fix it, start by finding your window brand and the date on which the glass was manufactured (etched in the corner of the glass or on the aluminum spacer between panes). Then, remove the sash and mark its width and height so that you can locate replacement weather stripping to match.

Then, take the sash from its holder, and place it on an even surface that allows you to reach all four sides. If your sash is double-hung, you'll have to take off the weights and the ropes that go with them, which should have fallen into the pocket of the jamb liner. After removing the sash using the utility knife, take off the weather stripping from the old sash by hand or using the putty blade.

After the sash has been cleared, you can install parting stops. These are long pieces of wood that divide the two sashes. Pam prefers to use the standard 1/2-inch by 3/4-inch window trimming from the lumberyard. However, you could also substitute for a scrap piece of lumber.

After removing the parting stops and cutting them to the desired length, apply a thin layer of glazing compound to the bottom of the sash. Smooth the compound with your putty knife, then let it dry for at least a few days. When it's completely dried then apply a top coat of acrylic latex paint. This coating will protect the putty and give your sash a fresh appearance.

Sash Hardware

The hardware that holds window sashes is prone to wearing out from time and usage and the result could be a door or window that won't open or close easily. It's important to know that replacing and repairing this hardware is often straightforward and cost-effective. If a sash is difficult to operate try spraying grease into the jamb channel and then slide it open to see if it solves the issue. If not, the issue is likely with the sash balance, and you'll have to take off the sash to access the hardware.

The ideal situation is for window sashes to move open and shut with minimal effort however, this can be a difficult task if the weights become worn or if the sash that joins rail isn't properly coated. This issue could be caused by a variety of factors such as an absence of maintenance or a mismatched weight rating.


If the hinges on windows begin to slide, this can cause the sash drag and then hit the frame at the opposite corner (Photo 1). To correct the issue make sure the sash is in the proper position within the frame's opening and take it off. If the sash has been screwed to the hinge arm, you'll need to loosen the hinge arm and replace it (Photo 2). Install the new sash (Photo 3).

Due to sagging hinges, and a general lack in energy efficiency, older windows especially in older homes, may be difficult to open and close. In many instances, a few easy repairs can transform these windows into smooth operation again and save the homeowner money on energy costs.

It is important to have the tools you need before you start. Begin by marking the location of the hinge channel on the frame with a pencil (Photo 1). This will make it easier to put the channel in the proper position after you've finished. Remove the sash and take out all the hardware, including the parting beads, cords, and chains that help to hold the sash. Soften any hardened putty with an electric heat gun set to medium and fitted with an shield for the nozzle. Remove the old sash and store it in an bag with a label.

Sash Weights

Sash weights can be replaced to improve the performance of your window sash and reduce the cost of energy. Sash weights consist of iron or lead cylinders that are encased in a hidden cavity and are connected via ropes to the moveable window sash. They function as counterbalances, allowing you to open and shut the window without the need for mechanical or electrical devices. The sash weights are usually disregarded or disabled by homeowners and turned into scrap when they fail; therefore you may have to locate replacements.

A weight in a sash that has fallen out of the cavity is difficult to recover It is therefore important to locate a new 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 to the sash cord.

Mortise and Tenon joints are used to join older wood windows. The wood pegs that keep the components together can be removed using pin punches and hammers. The majority of these pegs have large diameters on one side and a smaller size on the other, so it is crucial to take out the smaller-diameter sides first. Later sashes used glue instead of pins. They can be separated by using a knife or a mallet.

Once the sash is freed and removed, you can take off the sash stop and access the weight pocket. Usually it is done by drilling a hole near the bottom of each jamb. The hole is then covered with an access panel made of wood that can be ripped off to let you view the inside of the frame.

After you have the sash stopped and the access panel removed, you will be able to take off the weight from the sash and replace it with the new. Be sure to weigh the sash prior to you do this, as the old weights may be different in size from the one you need. Once the new weight is installed, thread the string through the sash pulling mechanism. Then, nail the string to your boxed frame. Leave a few inches at the top of the string to allow future adjustments.

Sash Cords

In most old double-hung window, a cord or chain is connected to the weights. This helps keep the sashes of the jamb balanced. Over time, these cords could 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 it is opened.

The first step to replace sash cords is to find and take out the access panels located in the jambs. These are usually fixed or screwed in and will need to be removed or moved. You may be able to use a hammer or chisel for removing them however, it is always best to lay down dust sheets before beginning any work.

After the access panel has been removed, you can begin working on the sash. Prise the narrow parting beads (also called "tie rails") out of their grooves with a chisel or flat bar. These are often wedged in or nailed in, but they can be prised free which is why it's worth your time. If the sash is still in place, break the mortise-and-tenon joints out with a hammer or screwdriver and then remove each wood peg. You should be able to move the sash around without difficulty, though it might require oiling if it seems stiff.

Take a measurement of the length of sash chain/sash cord required to reach the sash slot on the bottom from the pulley at the top of the jamb. Cut the cord/chain and then attach it in Step 6 above. You can either use a hammer and nail or screws, but nails are less likely to cause damage.

Unless you've bought an item that replaces the old counterbalance system, it's best to keep the original weights for balancing in place. They're not costly and are easy to install if purchased them from salvage shops for architectural use. Depending on the size and shape of your window you might need to install one or two sashweights to keep it open.