Window Sash Repairs

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

The sash is an inside frame that is able to move vertically up and down in windows that open. This article will show you how to carry out a few simple repairs to sash.

Weather Stripping

Wood window sashes give an elegant look to your home. If properly maintained, can last for many years. They can, however, be damaged or degraded over time due to exposure and normal wear. Sash repair experts can restore windows to their original state and keep them looking great longer than replacement windows.

The first step for sash upvc window repair repairs is addressing weather stripping. It's found on both the sash and frame. If it's damaged or worn out, it can lead to drafts, as well as other issues. Begin by identifying the window's brand and the manufacturer's date (etched on the corner of the glass or the aluminum spacers between panes). Then, take the sash off and mark its width and height to find replacement weather stripping to match.

Next, remove the sash and set it on a table so that you can reach all four sides. If your sash has been double-hung, take out the weights using their ropes that should be buried in the jamb lining. After you have removed the sash using the utility knife, remove the old weather stripping by hand or with a putty blade.

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

After removing the stoppers for parting and trimming them to your desired length then apply a thin layer of glazing compound to 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 and dried, apply a second coat of acrylic latex paint. This coating will protect the putty and give your sash a fresh look.

Sash Hardware

The hardware that holds the window sashes may wear out over time and with use. This could result in windows or doors that is difficult to open or close. The good news is that repairing and replacing this hardware is generally quite simple and inexpensive. If a sash isn't easy to operate, try spraying some oil into the jamb channel and then open it to see if that resolves 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 this hardware.

Ideally, window sashes should be able to open and close with very little effort, however, this can be difficult when the weights are worn or if the sash meeting rail isn't properly glazed. This issue can be caused by a variety of things, such as the lack of maintenance or a mismatched weight rating for a particular Window repair sash.

If the hinges on windows begin to slide, this can cause the sash drag and eventually hit against the frame at the opposite corner (Photo 1). To fix the problem, make sure that the sash is aligned in the frame opening and then take it off. If the sash was attached to the hinge arm, remove the hinge and replace it. (Photo 2). Next, install the new sash (Photo 3).

Old windows, especially those in older homes, can be difficult to open and close due to sagging hinges and general inefficiency. In many instances, a few easy repairs can transform these windows into smooth operators and save homeowners money on energy costs.

In order to make these sash repairs, it's important to have all of the necessary tools lined up before you begin. Begin by marking the location of the hinge channel on the frame using pencil (Photo 1). This will make it easier to place the channel in the correct location after you've completed. Then, remove the sash and remove the hardware including the parting beads (Photo 2) and the chains or cords that hold it in place. Soften any hardened putty using the help of a heat gun set at medium and fitted with an shield for the nozzle. Remove the old sash and place it in a labelled bag.

Sash Weights

Sash weights can be changed to enhance the efficiency of your window sash and reduce the cost of energy. Sash weights are heavy, lead or iron cylinders enclosed in a hidden cavity and connected to the movable window sash using rope. They provide counterbalance which allows the upvc window repairs to be opened and closed without the use of electrical or mechanical devices. The sash-weights are typically ignored or discarded by homeowners and turned into scrap when they fail. Consequently you might need to find replacements.

A weight from a sash that fell out of the cavity is difficult to retrieve and you'll need to find a new one that fits properly. You will also require a new piece of string, a length of sashcord and a few sashpulleys for tying the new weights to the cord.

Mortise and Tenon joints can be used to join older wood windows. Pin punch and hammer can be used to remove the wood pegs holding the components together. The majority of these pegs are large on one side, but smaller on the other. It is important to first remove the smaller diameter sides. Later sashes utilized glue instead of pins. They can be separated with a knife and mallet.

After the sash has been removed then you can take out the sash stop and access the weight pocket. This is usually done through tiny holes at the bottom of every jamb. The hole is then covered with an unfinished wooden panel that can be removed to reveal the inside workings.

Once the sash is stopped and the access panel is removed, you can take off the weight you used and replace it. Make sure you weigh the sash before you do this, as the old weights could be different in size from what is needed. Once the new weight is in place, tie a string to it and then thread it through the pulley of the sash. Then, you can attach the string to the boxed frame. Leave a few inches of space at the top of the string to allow future adjustments.

Sash Cords

Most double-hung windows of the past include a chain or cord attached to the weights that helps keep the sashes in balance within the jamb. As time passes, these cords may become damaged and render it impossible to raise the windows. A new sash cord will give you the ability to move the sash upwards and downwards and will keep it in its position when it is opened.

The first step to replace cords for window repair sash is to locate and remove the access panels in the jambs. They are usually attached by nails or screws and must be removed. It is possible to remove them using a hammer or chisel, but it is always better to lay out dust sheets before starting any work.

After you have removed the access panel, you can begin working on the sash. Utilize a flat bar or chisel to pull the tiny parting beads out of their grooves. It's important to take your time because they are usually wedged or nailed in place. If the sash is in place, break the mortise and the tenon joints by using a hammer and pin punch or screwdriver, then unhook the wood pegs attached to the components. It should now be possible to move the sash around freely, though it may require oil if it feels stiff.

Measure the length of sash chain/sash cord needed to reach the sash slot on the bottom of the pulley located at the top of the jamb. Cut the chain or cord and attach it in the previous step. You can use a hammer, nails or screws. However, nails are less likely to cause damage.

It is best to keep the weights that came with the original counterbalance unless you've purchased a kit to replace the old counterbalance. They are not expensive and are easy to install if purchased them from salvage shops for architectural use. Based on the size of your window one or two sashweights may be needed to keep the sash in an open position.