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Window Sash Repairs

Window sashes must be regularly checked for mold, mildew and other damage. You can avoid the cost of repairs in the future by catching problems in the early stages, before they become too much.

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

Weather Stripping

Wood window sashes provide a classic aesthetic to your home. If properly maintained, they can last for a long time. However, they can become damaged or degraded with time, due to exposure and normal wear. Sash repair experts can restore windows to their original state and keep them looking great much longer than replacement windows.

The first step to sash window repairs is addressing weather stripping. It's found on both the sash and frame. If it's loose or worn out, it can lead to drafts and other issues. To fix it, begin by determining your window's 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, take the sash off and mark its width and height to find replacement weather stripping to match.

Then, you can remove the sash from its holder, and place it on a flat surface to allow you to access all four sides. If your sash has been 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 using a utility knife, you can use it to cut away the weather stripping from the corners, and then remove it manually or using a putty knife.

When the sash is clean, you can replace the parting stops. These are long pieces that split the sashes. Pam prefers to use 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 parting stops and trimming them to the desired length and thickness, apply a thin layer of glazing compound over the bottom of the sash. Smooth it out using your putty knife and let it dry for a minimum of a day. After the putty has completely dried and dried, you can apply a topcoat of acrylic. This will help protect the putty and give your sash an updated look.

Sash Hardware

The hardware that supports the window sashes may wear out over time and use. This could result in a door or a window repair that is difficult to open or close. The good news is that repairing and replacing this hardware is usually very simple and cost-effective. If you are having trouble opening a sash spray some grease into the jamb channel. Then slide the sash out to see if that fixes the issue. If not, the problem is likely to be with the balance of the sash and you'll need to take out the sash to gain access to the hardware.

The ideal situation is for window sashes to swing open and closed without effort, however, this can be difficult when the weights are worn or if the sash's meeting rail isn't properly glazed. This problem can be caused by a variety of reasons, such as insufficient maintenance or a mismatched weight rating for the particular sash.

If the hinge arms of a window are starting to sag, this can cause the sash's to drag and eventually hit the frame in the corner opposite the hinge arm (Photo 1). To resolve this problem, first ensure that the sash is firmly seated in the frame's opening and then remove it from the window. If the sash is secured to the hinge arm, you'll have to unscrew the hinge arm and replace it (Photo 2). Install the new sash next (Photo 3).

Old windows, particularly those in older houses, can be difficult to open and close, due to hinges that are sagging and general inefficiency. In most instances, a few minor repairs can transform these windows into smooth operators for the first time and save the homeowner money on energy bills.

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

Sash Weights

Whether your window sash repairs are to replace a broken cord or simply to keep the windows functional, replacing worn out weights for sash will improve its operation and help reduce energy costs. Sash weights are heavy lead or iron cylinders enclosed in a hidden cavity and linked to the moveable sash by rope. These weights function as counterbalances, which allows you to open and close the Window repair without the need for mechanical or electrical devices. The sash weights are often disregarded or disabled by homeowners and then turned into scrap when they break; therefore, you may need to search for replacements.

It is difficult to recover a sash-weight that has fallen from the cavity, so you'll want 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 new weights to the cord.

Mortise and Tenon joints are used to join windows made of older wood. The wood pegs holding the components together can be removed using the use of a pin punch and hammer. The majority of these pegs have a large diameter on one side and a smaller size on the other side, so it is essential to remove the small-diameter sides first. Sashes made later in the century made use of glue instead of pegs and can be separated by cutting through the glue line using the help of a knife, and then tapping the mortised part loose with a mallet.

Once the sash is freed then you can take out the stopper on the sash and get access to the weight pocket. This is typically done by drilling a small hole at the bottom of every jamb. The hole is then covered with an access panel of wood which can be removed so that you can view the inside of the frame.

After the sash has been stopped and the access panel is removed, you can take off the weight that was previously installed and window Repair replace it. Make sure you weigh the sash prior to you begin, as the old weights could be a different size than the one you need. Once the new weight is in place you can tie a string around it and thread it through the pulley of the sash. Then attach the string to the boxed frame, leaving a few inches of string sticking out from the head for future adjustments.

Sash Cords

Most old double-hung windows come with a chain or cord connected to the weights that helps keep the sashes in balance within the jamb. Over time these cords can break, making it difficult to raise the window. A new sash cord will give you the ability to move the sash up and down and hold it in place when opened.

To replace sash cords, the first step is to remove the access panels from the jambs. These are usually screwed or nailed into and require removal. You might be able to use a hammer or chisel to remove them however, it is always best to lay down dust sheets prior to starting any work.

After you have removed the access panel, you are able to begin to work on the sash. Use a flat bar or chisel to pry the small parting beads from their grooves. They are usually wedged in or nailed, but they can be snipped out, so it's worth taking your time. If the sash remains in place, break the mortise and tenon joints with pin punch and hammer or screwdriver, then remove the wood pegs attached to the components. The sash should be able move around freely now, however it may require some lubrication to make it feel less 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 on the bottom. Cut the cord/chain and secure it in the previous step. You can use a hammer, nails, or screws. However nails are less likely than screws to cause damage.

If you don't have a kit that replaces the old counterbalance system, it's best to keep the original weights for balancing in place. They are not expensive and simple to install if you purchase them from salvage shops for architectural use. Based on the size of your window, one or two sashweights could be needed to keep the sash in an open position.