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Window Sash Repairs

Window sashes must be checked regularly for mold, mildew, and damage. You can save future repair costs by catching problems in the early stages before they become too much.

The sash is an internal frame that can move upwards and downwards in windows that open. This article will demonstrate how to do a variety of simple repairs to the sash.

Weather Stripping

Wood window sashes provide a classic aesthetic to your home. If properly maintained, they can last for a long time. However, they can become damaged or degraded with time due to exposure or normal wear. Sash repair double glazing experts can restore windows back to their original condition and maintain their appearance longer than replacement windows.

Weather stripping is the first issue to take care of when fixing windows with sash. It is located on both the frame and sash. If it's damaged or worn out, it can lead to drafts, as well as other issues. To fix it, begin by finding your window brand and the date on which the glass window repair was manufactured (etched in the corner of the glass repairs near me or on the aluminum spacer between panes). Remove the sash and mark its width and height so you can get new weather stripping that is compatible with the original.

Then, you can remove the sash from its holder, and place it on a flat surface to allow you to see all four sides. If the sash is double-hung, you'll have to remove the weights and their ropes, which should have fallen into the pocket of the jamb liner. After you've removed the sash, use a utility knife to remove the weather stripping from the corners. Then, take it off by hand or with a putty knife.

Once the sash is clear, you can replace the parting stops. These are long pieces of wood that separate the two sashes. Pam likes to replace them with standard 1/2-inch-by 3/4-inch window trim from the lumberyard, however you can also use scrap wood.

After removing the stopper for the parting and cutting it to length after which, apply a thin layer of glazing compound over 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 will protect the putty and give your sash a fresh look.

Sash Hardware

The hardware that holds window sashes is susceptible to wear and tear from age and use and the result could be a window or door that won't open or close easily. The good thing is that fixing and replacing this hardware is generally quite simple and inexpensive. If you're having trouble opening a sash spray some grease into the jamb channel. Then, slide the sash out to see if it resolves the problem. If the issue persists it's likely that the sash balance is off. You will need to remove the window sash to get access to this part of the hardware.

Ideally, window sashes must move open and shut with very little effort, however, this can be an issue when the weights are worn or if the sash that joins rail isn't properly glazed. This issue can be due to various reasons such as an absence of maintenance or a mismatched weight rating.

If the hinge arms on a window begin to sag this can cause the sash drag, and then eventually to hit the frame in the opposite corner (Photo 1). To fix this problem, first ensure that the sash fits squarely in the frame's opening and then remove it from the window. If the sash is screwed to the hinge arm, you'll need to loosen the hinge arm and replace it (Photo 2). Next, install the new sash (Photo 3).

Due to hinges that are sagging, and a general deficiency in energy efficiency, windows that are old especially in older homes, may be difficult to open or close. In many instances, a few easy repairs can transform these windows into smooth operation for the first time and save the homeowner cash on energy costs.

It is essential to have the tools you need before you begin. Begin by marking the location of the hinge channel on the frame using a pencil (Photo 1). This will help you get the channel back in the correct position after you've finished. Remove the sash and take out all the hardware including the parting beads cords, chains, and cords that keep the sash in place. Soften any hardened putty using the help of a heat gun set at medium and fitted with a shield to block the nozzle. Remove the old sash, and place it in a labelled bag.

Sash Weights

Whether your window sash repairs are to replace a broken cord or just to ensure that the windows are functional by replacing worn out weights for sash will improve its operation and cut down on the energy cost. Sash weights are made of heavy lead or iron cylinders that are encased in a hidden cavity and connected by ropes to the moveable window sash. They provide counterbalance, allowing the window to be closed and opened without the need for mechanical or electrical devices. When they fail, sashweights are often ignored or disabled by homeowners.

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 of sashcord and some sashpulleys to tie the new weights to the cord.

Older windows made of wood are joined with mortise and tenon joints. Hammers and pins can be used to cut off the wood pegs holding the components together. The majority of them are large on one side, and smaller on the other. It is important to first remove the smaller diameter sides. Sashes made later in the century used glue instead of pegs and can be separated by cutting the glue line with an instrument, and then tapping the mortised part loose using mallets.

Once the sash is freed, you can remove the sash stop and access the weight pocket. Usually it is done by drilling an opening in the bottom of each jamb. The hole is surrounded by a wooden panel that can be removed to reveal the inner workings.

Once the sash is stopped and the access panel is removed, you can remove the old weight and replace it. Make sure you weigh the sash prior to you do this, since the weights that were previously used may be different in size from what is needed. Once the new weight is installed then tie a string to it and then thread it through the pulley of the sash. Then, attach the string to your boxed frame. Leave a few inches of space at the head of the string to allow future adjustments.

Sash Cords

In the majority of double glazed repair-hung windows, a cord or chain is connected to the weights. This helps keep the sashes of the jamb level. Over time these cords can break, making it impossible to raise the window. A new sash cable can restore the ability to raise and lower the sash, and keep it in place when opened.

The first step in replacing cords for sash is to locate and remove the access panels in the jambs. These are usually screwed or nailed into and require removal. It may be possible to take them out using the hammer or chisel but it is always best to lay out dust sheets prior to beginning any work.

After you have removed the access panel, you can begin working on the sash. Utilize a flat bar or chisel, to pry the tiny parting beads out of their grooves. They are usually wedged in or nailed but can be removed which is why it's worth your time. If the sash is in place, pry out the mortise and tenon joints with a hammer and pin punch or screwdriver, and then take out the wood pegs attached to each component. The sash should move freely now, but it might require some lubrication in order to feel less stiff.

Take a measurement of the length of the sash chain or sash cord required to reach the sash slot at the bottom of the pulley at the top of the jamb. Cut the cord or chain, and then secure it in the previous step. You can either employ a hammer and screws or nails, however nails are less likely to cause damage.

It is best to keep the weights that came with the original counterbalance unless you have purchased a kit to replace the counterbalance that was previously installed. It's not expensive to buy them from architectural salvage stores and they'll be simple to install once you have the sash open. Based on the size of your window, one or two sashweights could be needed to keep it in an open position.