Window Sash Repairs

Sashes for windows must be checked regularly for mold, mildew and other damage. You can reduce the cost of repairs in the future by catching the issues in the early stages before they become out of control.

The sash is the interior frame that is vertically moved upwards or downwards in windows that are open. This article will teach you how to do a variety of simple repairs to the sash.

Weather Stripping

Wood window sashes give a classic aesthetic to your home and, when properly maintained, can last for many years. However, they can be damaged or deteriorate as time passes due to exposure to elements and normal wear and wear and tear. Thankfully, sash repair experts can bring your windows back to their original condition and maintain their appearance for longer than replacement windows.

Weather stripping is the first aspect to consider when you are repairing windows that have sash. It's located on both the frame and the sash. If it's loose or worn out, it can cause drafts, as well as other issues. Begin by identifying the brand of window and the date of manufacture for the glass (etched on the glass's corners or on the aluminum spacers between panes). Then, remove the sash and mark its height and width, so you can find new weather stripping that matches.

Then, remove the sash from the holder and place it on an even surface that allows you to access all four sides. If the sash is double-hung, take out the weights with their ropes that should fall into the pocket inside the jamb lining. Once you've taken the sash off, use a utility knife to cut off the old weather stripping at the corners, then remove it manually or with a putty knife.

Once the sash has been cleared, you can install the parting stops. These are long pieces that divide the sashes. Pam likes to replace these with standard 1/2-inch-by 3/4-inch window repairs trim from the lumberyard, but you could also use scrap wood.

After removing the stopper and cutting it to length, apply a thin coat of glazing compound to the bottom of the sash. Smooth the compound with your putty knife and let it dry for at least a few days. Once the putty has fully cured it is possible to apply a topcoat of acrylic. This will help protect the putty, and give your sash a modern look.

Sash Hardware

The hardware that supports the windows sashes can become worn out with time and use. This could lead to windows or doors that is difficult to open or close. It's a good idea to know that replacing and repair of this hardware is typically straightforward and cost-effective. If you are having trouble opening a sash spray some lubricant into the jamb channel. Then slide the sash up and open to see if this resolves the issue. If not, the issue is most likely due to the sash balance, and you'll need to take out the sash to access this hardware.

Ideally, window sashes should swing open and closed with minimal effort however, this can be an issue if the weights become worn or if the sash meeting rail isn't properly glazed. This issue could be caused by a number of reasons, such as lack of maintenance or by the wrong weight rating for a particular sash.

If the hinge arms on windows begin to slide, this can cause the sash drag and eventually hit against the frame in the opposite corner (Photo 1). To resolve this problem, first ensure that the sash fits squarely in the opening of the frame and then take it out of the window. If the sash has been screwed to the hinge arm, you'll need 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 because of sagging hinges and a general inefficiency. Many times it is a matter of making a few minor adjustments that can help these windows function smoothly again and help homeowners save money on their energy bills.

To complete these sash repairs it is important to have all the necessary tools lined up before you begin. Mark the location of the hinge channel on the frame (Photo 1) using a pencil. This will assist you in getting the channel back into place correctly when you're finished. Remove the sash and remove the hardware including the beads that separate (Photo 2) and the chains or cords which hold it in place. The nozzle shield of the heat gun and a medium setting can soften any hardened putty. Remove the old sash, and put it in a bag with a label.

Sash Weights

Sash weights can be changed to improve the performance of your window sash and decrease the cost of energy. Sash weights are hefty lead or iron cylinders enclosed inside a hidden compartment and connected to the movable the sash with a rope. They are counterbalancers which allows the window to be opened and closed without the use of electrical or mechanical devices. The sash weights are usually ignored or discarded by homeowners, and are turned into scrap when they fail; therefore you might need to locate replacements.

A weight in a sash that has fallen out of the cavity is difficult to retrieve It is therefore important to locate a new one that fits correctly. You will also require a new piece of string, a length sash cord and some sash pulleys that will tie the new sash weights the sash cord.

Mortise and Tenon joints are used to join windows made of older wood. Hammers and pins can be used to cut off the wood pegs holding the parts together. The majority of these pegs are large on one side, and smaller on the other. It is important to first remove the smaller diameter sides. Sashes that were made later in the century made use of glue instead of pegs. They can be separated by cutting the glue line with an instrument, and then tapping the mortised area loose with mallets.

After the sash has been removed, you can remove the sash stop and access the weight pocket. This is usually done through an opening at the bottom of every jamb. The hole is then covered with an access panel of wood that can be ripped off to allow you to view the inside of the frame.

When the sash has been shut off and the access panel is removed, you can take off the weight you used and replace it. First, weigh the sash because the weights you have might not be the correct size. After the new weight is installed, tie a string to it and thread it through the pulley of the sash. Then nail the string to the frame, but leave a few inches of string protruding from the head for future adjustments.

Sash Cords

The majority of double-hung windows with a history have a cord or chain connected to the weights that supports and keeps the sashes balanced in the jamb. As time passes, these cords can get damaged and make it difficult to raise the windows. A new sash cable will restore the ability to move and lower the sash, and ensure it stays in place when opened.

The first step in replacing cords for sash is to locate and take out the access panels located in the jambs. These are usually screwed or nailed into and require removal. You may be able to use a hammer and chisel to remove them, but it's always better to lay down dust sheets prior to beginning any work.

After removing the access panel, you are able to begin working on the sash. Use a flat bar or chisel, doors to pry the narrow parting beads from their grooves. It's important to be patient because they are usually placed in a wedge or nail. If the sash remains in place, pry the mortise and tenon joints free with a hammer or screwdriver, then remove each wood peg. The sash should be able to move freely now, but it may require some lubrication to make it feel less 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 cord/chain and then fix it using the previous step. You can do this with nail, hammer or screws. However nails are less likely to cause damage.

Unless you've bought an upgrade kit to replace the old counterbalance system, it's recommended to keep the original weights for balancing in place. They're not costly and simple to install if you purchase them from salvage shops for architectural use. Based on the dimensions and shape of your window, you may require one or two sashweights to keep the sash open.