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Window Sash Repairs

Window sashes need to be checked regularly for mold, mildew and other damage. You can reduce future repair costs by catching problems in the early stages, before they get out of hand.

The sash is the internal framing that can be moved vertically up or down in windows that open. This article will teach you how to perform simple sash repairs.

Weather Stripping

Wooden window repair near me sashes are a great way to add an elegant appearance to your home. They are also durable and can last many years when they are maintained properly. However, they can be damaged or degrade as time passes because of exposure to the elements and wear and wear and tear. Sash repair specialists can restore windows back to their original condition and maintain their beauty much longer than replacement windows.

The first step to sash window repairs is addressing weather stripping, which can be found on both the sash and frame. It can cause drafts if worn or loose. To fix it, begin by finding your window brand 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 width and height so that you can locate new weather stripping that matches.

Then, remove the sash and set it on a work surface so you can access all four sides. If your sash has a double-hung, you'll also need to remove the weights as well as their accompanying ropes that should have fallen into the pocket of the jamb liner. Once you've removed the sash and the weights, use a utility knife to cut away the old weather stripping at the corners, then remove it by hand or with a putty knife.

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

After removing the stopper for the parting and cutting it to length and then apply a thin layer of glazing compound over the bottom of the sash. Smooth the compound using your putty knife, and allow it to dry for at least a day. When the putty is fully cured it is possible to apply a topcoat of acrylic. This will help protect the putty and give your sash an updated appearance.

Sash Hardware

The hardware that holds window sashes is susceptible to wear and tear from time and usage, and the result can be a window or door that isn't able to open or close easily. It's good to know that replacing and repairing this hardware is often straightforward and cost-effective. If you're having difficulty opening a sash spray some lubricant into the jamb channel. Then slide the sash up and open to see if this resolves the problem. If the issue persists, it is most likely that the sash balance is off. You will need to take off the window sash in order to get access to this part of the hardware.

Ideally, window sashes should swing open and closed with minimal effort but this is an issue when the weights are worn or if the sash meeting rail isn't properly coated. This issue could be caused by a number of things, such as lack of maintenance or by an incorrect weight rating for a particular window sash.

If the hinge arms of a window are starting to sag, this can cause the sash to slide and eventually strike the frame in the corner in the opposite direction of the hinge arm (Photo 1). To address this problem, first ensure that the sash fits squarely in the frame's opening and then take it out of the window. If the sash is screwed onto the hinge arm, unbolt the hinge and replace it. (Photo 2). Install the new sash next (Photo 3).

Old windows, especially those in older homes, may be difficult to close and open due to hinges that are sagging and a general inefficiency. In many instances, a few minor repairs can turn these windows into smooth operation for the first time and save the homeowner cash on energy costs.

To make these repairs to sash it is important to have all the necessary tools in place before you begin. Mark the hinge channel location on the frame (Photo 1) with pencil. This will help you get the channel back into position correctly after you've completed. Remove the sash and take off the hardware including the beads that separate (Photo 2) and the chains or cords that secure it. The nozzle shield of the heat gun and medium setting will soften any hardened glue. Remove the old sash, and store it in an labelled bag.

Sash Weights

Sash weights can be changed to enhance the efficiency of your window sash and decrease the energy cost. Sash weights consist of iron or lead cylinders that are encased in a concealed cavity and attached by ropes to the movable window sash. These weights function as counterbalances, which allows you to open and close the window without having to use mechanical or electrical devices. The sash weights are usually neglected or ignored by homeowners and turned into scrap when they fail; therefore, you may need to locate replacements.

It is difficult to recover an sash-weight which has fallen from the cavity, so you'll need to find one that fits correctly. You will also require a new piece of string, a length of sashcord and some sashpulleys to tie the weights you are replacing to the cord.

Older wood windows are joined with mortise and tenon joints. Hammers and pins can be used to remove the wood pegs that hold the components together. The majority of these pegs are large on one side and smaller on the other. It is essential to first remove the smaller diameter sides. Sashes made later in the century made use of glue instead of pegs. They can be separated by cutting the glue line with a knife, then tapping the mortised section loose with mallets.

Once the sash is freed and removed, you can take off the stopper on the sash and get access to the weight pocket. Usually it is done by drilling a hole near the bottom of each jamb. This hole is covered by an access panel of wood that can be cut off to let you view the inside of the frame.

Once you have the sash stopped and the access panel removed, you'll be able to take off the weight from the sash and replace it with the new. Make sure you weigh the sash prior to you do this, as the old weights may be different sizes than what you require. Once the new weight is installed, tie a string to it and thread it through the pulley of the sash. Then, attach the string to your boxed frame. Leave a few inches at the top of the string to allow for future adjustments.

Sash Cords

Most old double-hung windows have a cord or chain connected to the weights that supports and keeps the sashes in balance in the jamb. As time passes, these cords can get damaged and make it impossible to raise windows. A new sash cord will restore the ability to move the sash up and down and hold it in place when it is opened.

The first step in replacing sash cords is to find and take out the access panels located in the jambs. They are usually screwed or nailed in and need to be removed. You might be able to use a hammer and chisel to prise them off, but it's always better to lay down dust sheets prior to beginning any work.

After you have removed the access panel, you can begin working on the sash. Utilize a flat bar, or chisel to pry the tiny parting beads out of their grooves. They are usually wedged in or nailed but can be snipped out and repairs it's worth your time. If the sash remains in place, pry out the mortise and the tenon joints by using the help of a hammer and pin or screwdriver, then remove the wood pegs that are on each piece. You should now be able to move the sash back and forth without difficulty, though it may require oil if it feels stiff.

With the sash open, measure enough sash cord/chain to reach from the pulley in the top of the jamb to the sash slot in the bottom. Cut the chain or cord, and then fix it using the previous step. You can either employ a hammer and screws or nails, but nails are less likely to cause damage.

It is best to keep the weights that came with the original counterbalance unless you have purchased a kit that will replace the old counterbalance. It's not too expensive to purchase them from architectural salvage stores and they'll be easy to install once you've got the sash open. Based on the size of your window two or three sash weights may be needed to keep the sash in an open position.