Window Sash Repairs
Window sashes must be inspected regularly for signs of mold, mildew, and damage. You can reduce future repair costs by catching these issues early, before they get out of hand.
The sash is an internal frame that moves upwards and downwards in windows that are open. This article will show you how to make several simple repairs to sash.
Weather Stripping
Wood window sashes add an elegant look to your home. If properly maintained, they will last for many years. They may, however, become damaged or degraded with time, due to exposure and normal wear. However, sash repair experts can restore your windows to their original condition and keep them looking great for longer than replacement windows.
The first step for sash window repairs is addressing weather stripping. It's found on both the sash and frame. It can cause drafts if it's worn or loose. To fix it, start by finding your window brand and the date on which the glass was manufactured (etched in the corner of the glass or on the aluminum spacer between panes). Take the sash off and mark its size and width so that you can get new weather stripping that is compatible with the original.

Next, remove the sash and place it on a table so that you can reach all four sides. If your sash has been double-hung, you must remove the weights with their ropes that should fall into the pocket within the jamb lining. After you've removed the sash, use a utility knife to cut off the old weather stripping at the corners, and then remove it by hand or with a putty knife.
After the sash has been cleaned, you can replace 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 trim from the lumberyard, however you can also use a piece of scrap wood.
After removing the stopper for the parting and cutting it to length after which, apply a thin layer of glazing compound to the bottom of the sash. Smooth it out using your putty knife, then let it dry for at least a day. Once window repair Willenhall '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 supports windows sashes can become worn out over time and with use. This could result in windows or doors that is difficult to open or close. The good thing is that fixing and replacing this hardware is usually very simple and cost-effective. If a sash is difficult to operate try spraying oil into the jamb channel then open it to see if that solves the issue. If the issue continues it's most likely to be due to the sash's balance. You will need to take off the window sash to access the hardware.
Ideally, window sashes should swing open and closed without effort, however, this can be difficult when the weights wear out or if the sash that joins rail isn't properly coated. This issue could be caused by a number of reasons, such as lack of maintenance or by a mismatched weight rating for the specific sash.
If the hinge arms of a window are starting to slide, this could cause the sash to drag and eventually land on the frame in the corner that's opposite the hinge arm (Photo 1). To fix the problem make sure the sash is in the proper position within the frame opening and then remove it. If the sash has been attached to the hinge arm, take it off the hinge and replace it. (Photo 2). Install the new sash next (Photo 3).
Due to hinges that are sagging, and a general lack in energy efficiency, older windows particularly those in older homes, can be difficult to open or close. Sometimes, a few simple fixes can help these windows function smoothly again and save homeowners money on energy bills.
In order to make these repairs to sash, it's important to have all the tools needed before you begin. Mark the hinge channel's location on the frame (Photo 1) using a pencil. This will help you to put the channel in the correct location after you've completed. Remove the sash, and remove all the hardware, including the beads for parting, cords, and chains that keep the sash in place. Soften any hardened putty with the help of a heat gun set at medium and equipped with an shield to block the nozzle. Take off the old sash and store it in a bag labeled.
Sash Weights
Sash weights are able to be replaced to improve the operation of your window sash and reduce the cost of energy. Sash weights are hefty lead or iron cylinders, which are enclosed in a concealed cavity and linked to the moveable window sash using rope. These weights function as counterbalances, allowing you to open and close the window without having to use mechanical or electrical devices. The sash weights are often neglected or ignored by homeowners and turned into scrap when they break; therefore, you may need to find replacements.
It's not easy to retrieve an sash-weight which has fallen from the cavity, so you'll need to find one that is suitable for the. You will also require a new piece string, a length 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 that keep the parts together can be removed using the use of a pin punch and hammer. Most of them have large diameters on one side and a smaller diameter on the other side, so it is essential to remove the small-diameter sides first. Sashes made later in the century utilized glue instead of pegs. They can be separated by cutting through the glue line using a knife, then tapping the mortised section loose using mallets.
Once the sash has been released, you can remove sash stops and gain access to the weight pockets. Usually this is accomplished by drilling a hole near the bottom of each jamb. This hole is covered with an unfinished wooden panel that can be removed to reveal the interior workings.
After the sash has been stopped and the access panel removed, you will be able to remove the weight of the old sash and replace it with new. Be sure to weigh the sash first, as the weights you have may not be the correct size. After the new weight is in place then tie a string to it and thread it through the pulley for the sash. Then, you can attach the string to your 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 which supports and keeps the sashes in balance in the jamb. As time passes, these cords may become damaged and render it impossible to raise windows. A new sash cable will restore the ability to raise and lower the sash, and ensure it stays in place when opened.
To replace sash cords the first step is to remove the access panels from the jambs. They are typically installed by screws or nails and will need to be removed or repositioned. It is possible to take them out using the hammer or chisel but it is always better to lay out dust sheets before beginning any work.
After removing the access panel, you can begin to work on the sash. Make the small parting beads (also called "tie rails") out of their grooves with flat bar or chisel. It is important to be patient, as these are often placed in a wedge or nail. If the sash is still in place, break the mortise and the tenon joints by using the help of a hammer and pin or screwdriver, then remove the wood pegs on each piece. It should now be possible to move the sash back and forth without difficulty, though it will probably need some lubrication if it feels stiff.
Determine the length of sash chain/sash cord needed to reach the sash slot on the bottom from the pulley at the top of the jamb. Cut the cord or chain, and then attach it as described in the step 6 above. You can use nail, hammer or screws. However nails are less likely to cause damage.
If you don't have an item that replaces the counterbalance system that was in place before, it is recommended to keep the original balancing weights in place. They're not expensive and are easy to install if purchased them from salvage shops for architectural use. Depending on the size and shape of your window you may need to use one or two sashweights in order to keep it open.