The Best Window Sash Repairs The Gurus Have Been Doing Three Things

Window Sash Repairs
Window sashes need to be regularly checked for mold, mildew, and damage. If you catch these issues early, you can save money on future repairs.
The sash is an inside frame that can move vertically up and down in windows that are open. This article will show you how to make several simple repairs to sash.
Weather Stripping
Wood window sashes give a classic aesthetic to your home. If properly maintained, can last for many years. However, they can become damaged or deteriorate over time because of exposure to the elements and normal wear and tear. However, sash repair experts can restore your windows to their original condition and keep them looking great for a longer period of time than replacement windows.
Weather stripping is the first thing to address when repairing windows that have sash. It's located on both the frame and the sash. It can cause drafts if damaged or is loose. Start by identifying the brand of window and the glass manufacturer's date (etched on the corner of the glass or on the aluminum spacers between panes). Then, remove the sash and mark its width and height, so you can find replacement weather stripping to match.
Then, remove the sash and set it on a work surface so you can access all four sides. If your sash is double-hung, you'll also need to take off the weights and the ropes that go with them which should have slipped into the intended pocket in the jamb liner. After you've removed the sash using a utility knife, you can use it to cut away the weather stripping that was formerly in place at the corners, then remove it by hand or using a putty blade.
After the sash has been cleared, you can replace the parting stops. These are long pieces wood that separate the two sashes. Pam prefers the 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 stop and cutting it to length and then apply a thin layer of glazing compound to the bottom of the sash. Smooth the compound using your putty tool and let it dry for at least a day. When it's completely dried and dried, apply a second coat of acrylic latex paint. This coating will protect the putty and give your sash a fresh appearance.
Sash Hardware
The hardware that supports window sashes may wear out with time and use. This can result in the window or door that is difficult to open or close. The good news is that repairing and replacing this hardware is typically very simple and cost-effective. If a sash becomes difficult to operate you can try spraying some lubrication into the jamb channel, and then open it to see if that solves the issue. If the problem persists it's most likely to be due to the sash's balance. It is necessary to remove the window sash to access the hardware.
The ideal situation is for window sashes to be able to open and close with minimal effort however, this can be an issue if the weights become worn or if the sash's meeting rail isn't properly glazed. This issue could be caused by a variety of reasons, such as the lack of maintenance or the wrong weight rating for the particular window sash.
If the hinges on windows begin to slide, this can cause the sash drag, and then eventually to hit the frame at the opposite corner (Photo 1). To remedy the issue, make sure that the sash is in the proper position within the frame opening and then take it off. If the sash is screwed to the hinge arm, you'll need to loosen the hinge arm and replace it (Photo 2). Install the new sash (Photo 3).
Old windows, especially those in older homes, may be difficult to open and close due to sagging hinges and an overall lack of energy efficiency. Sometimes, a few simple fixes can allow these windows to operate smoothly once more and help homeowners save money on energy bills.
To make these repairs to sash it is essential to have all the tools needed before you begin. Mark the hinge channel's location on the frame (Photo 1) using pencil. This will help you get the channel back into place correctly when you're finished. Take the sash off and then remove all hardware, including the beads for parting, cords, and chains that keep the sash in place. Heat gun with nozzle shield and medium setting will soften any putty that has been hardened. Remove the old sash, and 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 decrease energy costs. Sash weights are heavy, lead or iron cylinders enclosed in a concealed cavity and connected to the movable window sash using rope. These weights act as counterbalances, allowing you to open and shut the window without having to use mechanical or electrical devices. The sash-weights are typically neglected or ignored by homeowners, and are turned into scrap when they break; therefore you may have to locate replacements.
A sash weight that has fallen out of the cavity is difficult to retrieve, so you will want to locate a new one that fits correctly. You will also require a new piece string, a length of sashcord and a few sashpulleys for tying the new weights to the cord.
Older wood windows are joined with mortise and tenon joints. upvc windows repair holding the parts together can be removed with pin punches and hammers. Most of these pegs have a large diameter on one side and a smaller size on the other, which is why it is essential to remove the small-diameter sides first. Later sashes utilized glue instead of pins. They can be separated with a knife and mallets.
Once the sash is freed, you can remove the stopper on the sash and get access to the weight pocket. Usually it is done by drilling a hole near the bottom of each jamb. This hole is then covered by an access panel of wood that can be cut off to let you view the inside of the frame.
Once you have the sash stopped and the access panel removed, you will be able to remove the weight from the sash and replace it with new. Be sure to weigh the sash first, as the weights you have may not be the right size. After the new weight is in place, tie a string to it and thread it through the pulley of the sash. Then, attach the string to the boxed frame. Leave a few inches protruding at the top of the string to allow future adjustments.
Sash Cords
The majority of double-hung windows with a history have a cord or chain connected to the weights that helps keep the sashes level in the jamb. As time passes, these cords may become damaged and render it impossible to raise windows. A new sash cable can restore the ability to move and lower the sash and ensure it stays in place when opened.
The first step in replacing sash cords is to locate and remove the access panels in the jambs. They are typically screwed or nailed in and need to be removed. You might be able to employ a hammer and chisel to remove them, but it's always better to lay down dust sheets prior to commencing any work.
Once the access panel is removed, you can begin working on the sash. Take the narrow beads (also called "tie rails") out of their grooves with flat bar or chisel. They are usually wedged in or nailed, but they can be removed which is why it's worth your time here. If the sash is still in place, pull the mortise-and tenon joints with a hammer or screwdriver and then take out each wood peg. The sash should move around freely now, however it may need some lubrication in order to feel less stiff.
With the sash in an open position, measure enough sash cord/chain to reach from the pulley on the top of the jamb to the sash slot in the bottom. Cut the cord or chain and fix it as described in Step 6 above. You can use either a hammer, nails, or screws. However nails are less likely than screws to cause damage.
Unless you've bought a kit that replaces the old counterbalance system it's recommended to keep the original weights for balancing in place. They are not expensive and easy to install if you purchase them from salvage shops for architectural use. Based on the size of your window, two or three sash weights might be required to keep the sash in an open position.