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Window Sash Repairs

Sashes for windows must be inspected regularly for signs of mold, mildew and other damage. You can reduce the cost of repairs in the future by catching problems early on before they get out of hand.

The sash is an internal frame that is able to move upwards and downwards in windows that are open. This article will show you how to carry out a few simple repairs to sash.

Weather Stripping

Wooden window sashes can add an elegant appearance to your home. They are also durable and can last many years when they are maintained properly. However, they can get damaged or deteriorated over time due to exposure or normal wear. Sash Repair My Windows And Doors specialists can restore windows back to their original condition and maintain their appearance longer than replacement windows.

The first step to sash window repairs is addressing weather stripping, which is found on both the sash as well as the frame. It can cause drafts if it’s worn or loose. To fix it, start by determining your window’s 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 width and height so you can purchase new weather stripping that is compatible with the original.

Then, remove the sash from its holder, and place it on a flat surface to allow you to reach all four sides. If your sash was double-hung, take out the ropes and weights that should have fallen into the pocket within the jamb lining. After removing the sash using the utility knife, you can remove the old weather stripping by hand or with the putty blade.

After the sash has been cleared it is time to replace the parting stops. They are long pieces of wood that separate the two sashes. Pam prefers to use standard 1/2-inch by 3/4-inch window trimming from the lumberyard. But, you can also substitute with a scrap piece of wood.

After removing the parting stop and trimming it to length and then apply a thin layer of glazing compound over the bottom of the sash. Smooth the compound with your putty knife, and allow it to dry for at least a day. Once the putty has fully dried, you can apply a topcoat of acrylic. This will protect the putty and give your sash a fresh appearance.

Sash Hardware

The hardware that holds the window sashes can wear out with time and use. This could result in the window or door that is difficult to open or close. The good thing is that fixing and replacing this hardware is typically quite simple and inexpensive. If a sash is difficult to operate, try spraying some oil into the jamb channel then slide it open to see if it solves the issue. If the issue continues it’s likely to be due to the sash’s balance. It is necessary to remove the window sash to get access to this part of the hardware.

Window sashes should open and close with little effort. However, this could be a challenge if the weights have been worn out or the sash connecting rail isn’t properly covered with. This could be caused by various reasons that include the lack of maintenance or an unmatched weight rating.

If the hinge arms on the window begin to move, this can cause the sash drag and then hit the frame in the opposite corner (Photo 1). To correct the issue make sure the sash is in the proper position within the frame opening, and then remove it. If the sash has been fixed to the hinge arm, remove the hinge and replace it. (Photo 2). Then, you can install the new sash (Photo 3).

Old windows, especially those in older homes, may be difficult to open and close due to hinges that are sagging and general lack of energy efficiency. In many cases just a few easy fixes can make these windows operate smoothly once more and help homeowners save money on energy bills.

It is important to have the tools needed before you start. Begin by marking the position of the hinge channel on the frame with pencil (Photo 1). This will help you to place the channel in the right place when you are finished. Then, remove the sash and remove the hardware including the parting beads (Photo 2) and the chains or cords that secure it. The nozzle shield of the heat gun and a medium setting can soften any putty that has been hardened. Remove the old sash, and store it in an bag with a label.

Sash Weights

If your window sash repairs are to replace a broken cord or simply to ensure that the windows are functional by replacing worn out weights on sash can improve sash operation and help reduce energy consumption. Sash weights consist of heavy iron or lead cylinders that are encased in a concealed cavity and attached by ropes to the movable window sash. These weights function as counterbalances and allow you to open and close the window without having to use mechanical or electrical devices. The sash weights are usually neglected or ignored by homeowners and turned into scrap when they fail; therefore you may have to search for replacements.

A weight from a sash that fell out of the cavity is difficult to get back, so you will want to find a new one that fits properly. You will also require a fresh piece of string, a length sashcord and some sashpulleys to tie the new weights to the cord.

Older windows made of wood are joined by mortise and tenon joints. The wood pegs holding the parts together can be removed with pin punches and hammers. The majority of these pegs are large 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 made use of glue instead of pegs. They can be separated by cutting through the glue line with an instrument, and then tapping the mortised section loose with mallets.

After the sash has been removed and removed, you can take off the stopper on the sash and get access to the weight pocket. Usually it is done by drilling an opening in the bottom of each jamb. The hole is then covered with an unfinished wooden panel that can be removed to reveal the inner workings.

Once you have the sash stopped and the access panel removed, you’ll be able to take off the weight of the old sash and replace it with new. Make sure you weigh the sash prior to you do this, as the weights that were previously used may be different in size from what is needed. After the new weight is in place, tie a string to it and then thread it through the pulley for the sash. Then, attach the string to the boxed frame. Leave a few inches of space at the end of the string for future adjustments.

Sash Cords

Most double-hung windows of the past have a cord or chain connected to the weights that helps keep the sashes in balance in the jamb. As time passes, these cords can become damaged and make it impossible to raise the windows. A new sash cable will give you the ability to raise and lower the sash and keep it in position when it is opened.

The first step to replace sash cords is to locate and remove the access panels within the jambs. These are usually screwed or nailed into and need to be removed. It may be possible to take them out using an axe or hammer, however, it is best to lay out dust sheets prior to beginning any work.

Once the access panel is removed, you can begin working on the sash. Utilize a flat bar or chisel, to pry the small parting beads from their grooves. They are typically wedged into or nailed but can be snipped out, so it’s worth taking your time here. If the sash is still in place, pry the mortise-and tenon joints with a screwdriver or hammer and then remove each wood peg. The sash should move around freely now, however it may need some lubrication to make it feel less stiff.

With the sash in an open position, measure enough sash cord/chain to reach from the pulley in the top of the jamb to the sash slot on the bottom. Cut the chain or cord and attach it in Step 6 above. You can either employ a hammer and nail or screws, but nails are less likely to cause damage.

It’s best to leave 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 you purchase them at architectural salvage stores. Based on the dimensions and shape of your window you may require one or two sashweights in order to keep it open.