Window Sash Repairs

Sashes for windows must be checked regularly for mold, mildew and other damage. If you catch these issues early you will save money on repairs in the future.

The sash is an interior framing that moves vertically either up or down in windows that are open. This article will demonstrate how to carry out a few simple repairs to the sash.

Weather Stripping

Wood window sashes add a classic aesthetic to your home. If properly maintained, they can last for years. However, they can become damaged or degraded over time because of exposure to the elements and wear and tear. Thankfully, sash door repair experts can restore your windows to their original condition and keep them looking fantastic for a longer period of time than replacement windows.

The first step for sash window repairs is addressing weather stripping, which can be found on both the sash and frame. If it's loose or worn out, it can lead to drafts and other issues. Start by identifying the window's brand and the date of manufacture for the glass (etched on the glass's corner, or the aluminum spacers between panes). Then, take the sash off and mark its width and height, so you can find the appropriate weather stripping replacement to match.

Next, remove the sash and set it on a work surface so that you can reach all four sides. If your sash was double-hung, you must remove the weights using their ropes that should have fallen into the pocket within the jamb lining. Once you've taken the sash off and the weights, use a utility knife to remove the weather stripping that was formerly in place at the corners. Then, remove it by hand or using a putty blade.

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

After removing the parting stops and cutting them to the desired length, apply a thin layer of glazing compound on the bottom of the sash. Smooth the compound using your putty tool, and allow it to dry for at least a day. Once it's fully cured then apply a top coat of acrylic latex paint. This coating will protect the putty and give your sash a new look.

Sash Hardware

The hardware that holds the window sashes may wear out with time and use. This can result in windows or doors that is difficult to open or close. The good news is that fixing and replacing this hardware is typically very simple and cost-effective. If a sash becomes difficult to operate, try spraying some grease into the jamb channel then open it to see if it fixes the problem. If not, the problem is likely to be with the sash balance and you'll need to remove the sash in order to access the hardware.

Window sashes need to open and close with little effort. However, this can be difficult if weights are worn out or the sash connecting rail isn't covered with. This issue can be due to various reasons such as the lack of maintenance or an unmatched weight rating.

If the hinge arms of a window are starting to slide, this could cause the sash's to drag and eventually hit the frame in the corner directly opposite the hinge arm (Photo 1). To remedy the issue ensure that the sash is aligned in the frame opening, and then remove it. If the sash is attached to the hinge arm, remove the hinge and replace it. (Photo 2). Then, window repairs put in the new sash (Photo 3).

Because of sagging hinges and a general deficiency in energy efficiency, older windows particularly those in older houses, could be difficult to open and close. In many instances, a few minor repairs can turn these windows into smooth operators and save homeowners money on energy bills.

It is important to have the tools needed before you start. Mark the hinge channel location on the frame (Photo 1) using a pencil. This will assist you in getting the channel back into place correctly when you're 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 with the help of a heat gun set at medium and fitted with an shield for the nozzle. Take off the old sash and window repairs put it in a bag with a label.

Sash Weights

Sash weights are able to be replaced to enhance the efficiency of your window sash, and also reduce the energy cost. Sash weights consist of iron or lead cylindricals that are contained inside a concealed cavity, and are connected via ropes to the movable window sash. These weights provide counterbalance which allows the window to be opened and closed without the need for mechanical or electrical devices. The sash weights are often disregarded or disabled by homeowners, and are turned into scrap when they fail. Consequently, you may need to search for replacements.

A sash weight that has fallen out of the cavity is difficult to recover It is therefore important to find a new one that fits correctly. You will also require an additional piece of string, a length the sash cord, as well as some sash pulleys to tie the new sash weights onto the sash cord.

Mortise and Tenon joints are used to join windows made of older wood. Pin punch and hammer can be used to remove the wood pegs that hold the components together. The majority of these pegs are big on one side, and smaller on the other. It is crucial to first remove the smaller diameter sides. Sashes that were made later in the century utilized glue instead of pegs. They can be separated by cutting through the glue line using the help of a knife, and then tapping the mortised area loose with a mallet.

After the sash has been removed, you can remove the sash stop and gain access to the weight pocket. This is usually done through an opening in the bottom of each jamb. This hole is covered by an access panel of wood that can be cut off to allow you to observe the inner workings of the frame.

After the sash has been stopped and the access panel has been removed, you can remove the old weight and replace it. Make sure you weigh the sash prior to you begin, as the old weights could be different sizes than what you require. After the new weight is installed, tie a string to it and thread it through the pulley for the sash. Then, attach the string to your boxed frame. Leave a few inches at the top of the string to allow future adjustments.

Sash Cords

Most old double-hung windows include a chain or cord attached to the weights that keeps the sashes balanced in the jamb. Over time, these cords could break, making it impossible to raise the window. A new sash cord can restore the ability to move the sash upwards and downwards and will keep it in its place when opened.

The first step in replacing cords for sash is to locate and remove the access panels within the jambs. They are typically screwed or nailed into and need to be removed. It may be possible to remove them with a hammer or chisel, but it is always better to lay out dust sheets prior to beginning any work.

After the access panel has been removed, you can begin working on the sash. Utilize a flat bar or chisel, to pry the narrow partsing beads out of their grooves. They are usually wedged in or nailed, but they can be prised free which is why it's worth your time. If the sash remains in place, remove the mortise and tenon joints using pin punch and hammer or screwdriver, and then take out the wood pegs that are on each component. You should now be able to move the sash around without difficulty, though it might require oiling if it seems stiff.

Determine the length of sash cord/chain required to reach the sash slot at the bottom, and the pulley at the top of the jamb. Cut the cord or chain and secure it in the step 6 above. You can either use a hammer and screws or nails, but nails are less likely to cause damage.

If you haven't purchased a kit that replaces the old counterbalance system, it's best to keep the original balancing weights in place. They are not expensive and easy to install if purchased them from salvage shops for architectural use. Depending on the size of your window, two or three sash weights may be needed to keep the sash in an open position.