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Window Sash Repairs

Window sashes must be regularly checked for mold, mildew, and damage. You can avoid future repair costs by catching the issues early on before they become out of control.

The sash is the internal frame that is vertically moved upwards or downwards in windows that open. This article will show you how to perform simple sash repairs.

Weather Stripping

Wood window sashes give a classic aesthetic to your home and, when properly maintained, can last for a long time. However, they can be damaged or deteriorate as time passes due to exposure to elements and normal wear and tear. Sash repair windows experts can restore windows to their original condition and keep them looking great much longer than replacement windows.

Weather stripping is the first thing to address when repairing windows that have sash. It is located on both the frame and the sash. If it's worn or loose, out, it can cause drafts and other issues. To fix it, start by determining the brand of your window and the date of manufacture for the glass (etched in the corner of the glass or on the aluminum spacer between panes). Then, remove the sash and mark its height and width, so you can find the appropriate weather stripping replacement to match.

Then, you can remove the sash from its holder and place it on flat surfaces to allow you to see all four sides. If your sash is double-hung, you'll also need to remove the weights and the ropes that go with them which should have slipped into the pocket that was intended to be in the jamb liner. Once you've taken the sash off and the weights, use a utility knife to remove the old weather stripping at the corners. Then, take it off by hand or using a putty knife.

Once the sash is clear, you can replace the parting stops. These are long pieces that divide the sashes. Pam prefers to use standard 1/2-inch by 3/4-inch window trim from the lumberyard. But, you can substitute a scrap piece of wood.

After removing the parting stops and cutting them to the desired length then apply a thin layer of glazing compound on the bottom of the sash. Smooth the compound with your putty tool and let it dry for at least a day. Once the putty has fully cured, you can apply an acrylic latex topcoat. This coating will protect the putty and give your sash a new appearance.

Sash Hardware

The hardware that holds window sashes is prone to wearing out from the wear and tear of use, and the result can be a door or window that won't open or close easily. The good news is that fixing and replacing this hardware is usually very simple and cost-effective. If a sash becomes difficult to operate, try spraying some oil into the jamb channel, and then slide it open to see if that solves the issue. If the issue continues it's most likely that the sash balance is off. You will need to take off the window sash in order to reach this hardware.

Window sashes should open and close with little effort. However, this can be difficult if the weights are worn out or the sash-to-rail connecting rail isn't properly glazed. This issue can be caused by a variety of things, such as the lack of maintenance or the wrong weight rating for a particular window sash.

If the hinge arms of a window are beginning to sag, this can cause the sash to slide and eventually strike the frame in the corner that's directly opposite the hinge arm (Photo 1). To fix this issue, first make sure the sash is firmly seated in the opening of the frame and then remove it from the window. If the sash has been attached to the hinge arm, unbolt the hinge and replace it. (Photo 2). Then, you can install the new sash (Photo 3).

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

It is essential to have the tools needed before you begin. Begin by marking the location of the hinge channel on the frame with a pencil (Photo 1). This will assist you in getting the channel back on position correctly after you've completed. Remove the sash, and remove all the hardware, including the parting beads, cords, and chains that hold the sash in place. Soften any hardened putty using the help of a heat gun set at medium and equipped with a nozzle shield. Take off the old sash and put it in a bag with a label.

Sash Weights

Whether your window sash repairs are to replace a damaged cord or just to keep the windows functional and functional, replacing worn-out weights for sash will improve its operation and reduce the energy cost. Sash weights are composed of heavy iron or lead cylindricals that are contained in a hidden cavity and are connected via ropes to the moveable window sash. These weights act as counterbalances, which allows you to open and shut the window without requiring mechanical or electrical devices. When they fail, sashweights tend to be left unnoticed or disabled by homeowners.

It's not easy to retrieve an sash-weight which 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 sash cord and some sash pulleys to tie the new sash weights the sash cord.

Older wood windows are joined by mortise and tenon joints. Hammers and pins can be used to cut off the wood pegs holding the parts together. The majority of them are large on one side and smaller on the other. It is important to first remove the smaller diameter sides. Later sashes utilized glue instead of pins. They can be cut with a knife and mallets.

After the sash is removed, you can take off the stops on the sash and get access to the weight pockets. Usually this is accomplished by drilling an opening at the bottom of each jamb. This hole is then covered by an access panel made of wood which can be removed to allow you to see the inner workings of the frame.

After the sash has been stopped and the access panel removed, you will be able to take off the weight of the old sash and replace it with the new. Weigh the sash first because the weights you have might not be the correct size. Once the new weight is in place, tie a string to it and then thread it through the pulley for the sash. Then, you can nail the string to the boxed frame, leaving a few inches of string hanging from the head for future adjustment.

Sash Cords

In most old double-hung window, a cord or chain is attached to the weights. This helps keep the sashes of the jamb level. Over time, these chains can become damaged and make it impossible to raise windows. A new sash cord will give you the ability to move the sash up and down and will keep it in its place when opened.

To replace sash cords the first step is to remove the access panels from the jambs. These are usually fixed or screwed in and will need to be removed or relocated. It may be possible to take them out using an axe or hammer, window sash repairs however, it is best to lay out dust sheets before beginning any work.

After you have removed the access panel, you are able to begin working on the sash. Utilize a flat bar or chisel to pull the small parting beads out of their grooves. It's important to take your time as they're often stuck or nailed to the floor. If the sash is still in place, pry the mortise-and tenon joints with a hammer or screwdriver and then take out each wood peg. It should now be possible to move the sash around freely, although it will probably need some oiling if it seems stiff.

With the sash open Take a measurement of the sash chain to extend from the pulley at the top of the jamb to the sash slot at the bottom. Cut the cord or chain, and then secure it in the previous step. You can either use a hammer and screws or nails, however nails are less likely to cause damage.

It is recommended to keep the weights that came with the original counterbalance unless you've purchased a kit that will replace the counterbalance that was previously installed. They are not expensive and are easy to install if purchased them at architectural salvage stores. Depending on the dimensions and shape of your window, you might need to install one or two sashweights in order to keep it open.