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Window Sash Repairs

Regularly inspect the window sashes for signs of damage, mildew and mold. By catching these problems early you can save money on repairs in the future.

The sash is the internal framing that moves vertically up or down in windows that open. This article will show you how to do easy repairs to your sash.

Weather Stripping

Wood window sashes add an elegant look to your home. If properly maintained, can last for years. However, they may become damaged or degrade over time because of exposure to the elements and normal wear and tear. Fortunately, sash repair specialists can restore your windows back to their original condition and keep them looking fantastic for longer than replacement windows.

The first step to sash window repairs is addressing weather stripping. It's found on both the sash and frame. It could cause drafts if worn or loose. To fix it, start by determining your window's brand and the date of manufacture for the glass (etched in the corner of the glass or on the aluminum spacer between panes). Then, remove the sash and mark its height and width so that you can locate new weather stripping that matches.

Then, take it off and set it on a table to allow access to all four sides. If your sash has been double-hung, you must remove the weights using their ropes that should have fallen into the pocket inside the jamb lining. After removing the sash using the utility knife, take off the weather stripping that was left by hand or using a putty blade.

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

After removing the parting stops and trimming them to the desired length and thickness, apply a thin layer of glazing compound on the bottom of the sash. Smooth the compound using a putty tool and let it dry for at least one day. When it's completely dried then apply a top coat of acrylic latex paint. This coating will protect the putty and give your sash a new appearance.

Sash Hardware

The hardware that supports window sashes is susceptible to wear and tear due to the wear and tear of use and the result could be a door or window that can't be opened or closed easily. It's important to know that replacing and repairing this hardware is often straightforward and cost-effective. If a sash isn't easy to operate you can try spraying some oil into the jamb channel and then open it to see if that fixes the problem. If the issue continues it's likely the sash balance. It is necessary to take off the Window Repair sash in order to access the hardware.

Window sashes need to open and close without much effort. However, this could be difficult if weights are worn out or the sash meeting rail is not properly glazed. This problem can be caused by a number of factors, including lack of maintenance or by a mismatched weight rating for the particular sash.

If the hinge arms on the window begin to move, this could cause the sash to drag, and then eventually to hit the frame in the opposite corner (Photo 1). To address this problem, first ensure that the sash fits squarely in the frame's opening and then take it out of the window. If the sash is secured to the hinge arm, you'll have to remove the hinge arm 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 because of sagging hinges and an overall inefficiency. Sometimes it is a matter of making a few minor adjustments that can help these windows function smoothly once more and save homeowners money on energy bills.

It is essential to have the tools needed before you begin. Start by marking the location of the hinge channel on the frame using pencil (Photo 1). This will allow you to place the channel in the proper place when you are finished. Remove the sash and take off the hardware including the beads that separate (Photo 2) and the chains or cords that secure it. Soften any hardened putty using the help of a heat gun set at medium and fitted with a nozzle shield. Take off the old sash and store it in an bag that is labeled.

Sash Weights

Sash weights can be replaced to enhance the efficiency of your window sash and decrease energy costs. Sash weights are heavy lead or iron cylinders that are enclosed in a concealed cavity and attached to the movable window sash using rope. These weights act as counterbalances, which allows you to open and close the window without requiring mechanical or electrical devices. When they fail, sashweights are usually left unnoticed or disabled by homeowners.

A weight in a sash that has fallen out of the cavity is difficult to get back and you'll need to locate a new one that is suitable for the. You will also require a fresh piece of string, a length sashcord and a few sashpulleys for tying the new weights to the cord.

Older wood windows are joined with mortise and tenon joints. The wood pegs holding the components together can be removed by the use of a pin punch and hammer. Most of these pegs have a large diameter on one side and a smaller diameter on the other side, so it is crucial to take out the small-diameter sides first. Sashes that were made later in the century utilized glue instead of pegs. They can be separated by cutting through the glue line with a knife, then tapping the mortised part loose using a mallet.

After the sash is released, you can remove the stops on the sash and get access to the weight pockets. This is typically done by drilling a small hole at the bottom of each jamb. This hole is then covered by a wooden access panel which can be removed to let you see the inner workings of the frame.

After the sash has been stopped and the access panel is removed, you can take off the old weight and replace it. Be sure to weigh the sash prior to you do this, since the old weights could be a different size than 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, nail the string to your boxed frame. Leave a few inches protruding at the head of the string for future adjustments.

Sash Cords

Most old double-hung windows come with a chain or cord attached to the weights which supports and keeps the sashes balanced in the jamb. Over time, these chains can get damaged and make it difficult 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.

The first step to replace sash cords is to find and remove the access panels within the jambs. They are usually attached by nails or screws and must be removed. You could use a hammer or chisel to remove them however, it is always best to lay down dust sheets before commencing any work.

After the access panel has been removed, you can begin working on the sash. Use a flat bar or chisel to pry the tiny parting beads from their grooves. It is important to be patient, as these are often placed in a wedge or nail. If the sash remains in place, break the mortise and the tenon joints by using pin punch and hammer or screwdriver, and then take out the wood pegs that are on each component. It should now be possible to move the sash back and forth freely, although it will probably need some oiling if it seems stiff.

Take a measurement of the length of the sash chain or sash cord required to reach the sash slot on the bottom, and the pulley located at the top of the jamb. Cut the cord or chain and then fix it using the step 6 above. You can use nail, hammer or screws. However, nails are less likely to cause damage.

It's best to leave the original weights in place unless you've purchased a kit to replace the counterbalance that was previously installed. They're not costly and simple to install if purchased them from architectural salvage stores. Based on the size of your upvc window repair, one or two sash weights may be needed to keep the sash in an open position.