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Window Sash Repairs

Window sashes need to be checked regularly for mold, mildew and other damage. By catching problems before they become serious you will save money on repairs in the future.

The sash is an internal frame that can move up and down vertically in windows that are open. This article will teach you how to make several easy repairs to your sash.

Weather Stripping

Wooden window sashes can give an elegant look to your home. They are also durable and will last for many years if they are properly maintained. However, they can become damaged or deteriorate as time passes due to exposure to the elements and wear and wear and tear. Fortunately, sash repair specialists can restore your windows to their original condition and maintain their appearance for a longer period of time than replacement windows.

The first step for sash Window Repair repairs is addressing weather stripping, which can be found on both the sash and frame. If it's loose or worn out, it could cause drafts, as well as other issues. 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, take the sash off and mark its height and width so that you can locate new weather stripping that matches.

Then, remove the sash from its holder, and place it on flat surfaces to allow you to access all four sides. If your sash is double glazed window repairs-hung, you'll have to take off the weights and their accompanying ropes which should have slipped into the pocket of the jamb liner. After you've removed the sash and the weights, use a utility knife to remove the old weather stripping at the corners, then remove it by hand or with a putty knife.

Once the sash is clear it is time to replace the parting stops. These are long pieces that split the sashes. Pam prefers the standard 1/2-inch by 3/4-inch window trimming from the lumberyard. However, you could also substitute a scrap piece of wood.

After removing the stopper and trimming it to length and then apply a thin layer of glazing compound on the bottom of the sash. Smooth the compound with your putty tool, and let it dry for at least a day. Once it's fully cured then apply a top coat of acrylic latex paint. This will help protect the putty, and give your sash an updated look.

Sash Hardware

The hardware that supports the windows sashes can become worn out over time and with use. This could lead to a door or a window that is difficult to open or close. It's good to know that replacing and repair of this hardware is typically simple and inexpensive. If you are having trouble opening a sash spray some lubricant into the jamb channel. Then, you can slide the sash open to see if it resolves the problem. If not, the problem is likely to be with the sash balance and you'll need to take out the sash to access the hardware.

Ideally, window sashes must be able to open and close with minimal effort but this is difficult when the weights are worn or if the sash's meeting rail isn't properly coated. This problem can be caused by a number of reasons, such as lack of maintenance or by a mismatched weight rating for a particular window sash.

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 fix the problem ensure that the sash is centered in the frame opening, and then take it off. If the sash has been attached to the hinge arm, remove the hinge and replace it. (Photo 2). Install the new sash next (Photo 3).

Old windows, particularly those in older homes, may be difficult to close and open because of sagging hinges and a general inefficiency. Many times, a few simple fixes can allow these windows to operate smoothly once more and save homeowners money on energy bills.

It is important to have the tools you need before you start. Begin by marking the location of the hinge channel on the frame with a pencil (Photo 1). This will help you get the channel back into place correctly when you're finished. Then, remove the sash, and then remove the hardware, including the parting beads (Photo 2) and the chains or cords which hold it in place. Soften any hardened putty using a heat gun set to medium and equipped with an shield for the nozzle. Remove the old sash and place it in a bag with a label.

Sash Weights

Whether your window sash repairs are to replace a damaged cord or to keep your windows functioning, replacing worn out weights for sash will improve its operation and reduce energy consumption. Sash weights are composed of iron or lead cylinders that are enclosed in a concealed cavity and attached by a rope to the movable window sash. 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 typically neglected or ignored by homeowners and then turned into scrap when they fail. Consequently, you may need to find replacements.

A weight from a sash that fell out of the cavity is difficult to recover and you'll need to find a new one that fits properly. You will also require a fresh piece of string, a length sashcord and a few sashpulleys for tying the new weights to the cord.

Mortise and Tenon joints can be used to join windows made of older wood. The wood pegs holding the parts together can be removed by the use of a pin punch and hammer. Most of these pegs have an enormous diameter on one side and a smaller diameter on the other, so it is important to remove the smaller-diameter sides first. Sashes that were made later in the century used glue instead of pegs and can be separated by cutting through the glue line using an instrument, and then tapping the mortised part loose using a mallet.

After the sash is removed and removed, you can take off the sash stop and access the weight pocket. Usually this is accomplished by drilling an opening at the bottom of each jamb. This hole is covered with a wooden panel that can be removed to reveal the interior workings.

Once the sash is stopped and the access panel is removed, you can remove the weight that was previously installed and replace it. Be sure to weigh the sash prior to you do this, as the old weights may be different in size from what you require. After the new weight is in place, tie a string to it and then thread it through the sash pulley. Then attach the string to the boxed frame, leaving a few inches of string hanging from the head to allow for future adjustments.

Sash Cords

In most old double glazed window repairs-hung window, a cord or chain is affixed to the weights. This supports and keeps the sashes within the jamb level. Over time, these cords can become damaged and make it impossible to raise the windows. A new sash cable can restore the ability to move and lower the sash, and ensure it stays in place when it is opened.

To replace sash cords the first step is to remove the access panels from the jambs. These are usually attached by nails or screws and need to be removed. You might be able to use a hammer and chisel to prise them off however, it is always best to lay down dust sheets before starting any work.

After removing the access panel, you are able to begin working on the sash. Utilize a flat bar, or chisel, to pry the tiny partsing beads out of their grooves. They are usually wedged in or nailed, but they can be prised free and it's worth your time here. If the sash remains in place, pull the mortise-and-tenon joints out with a screwdriver or hammer, then remove each wood peg. You should be able to move the sash back and forth without difficulty, though it might require oil if it feels stiff.

Measure the length of sash chain/sash cord required to reach the sash slot on the bottom from the pulley on the top of the jamb. Cut the cord or chain and secure it as in the previous step. You can use a hammer, nails, or screws. However, nails are less likely to cause damage.

It's best to leave the original weights if you've purchased a kit that will replace the counterbalance that was previously installed. It's cheap to purchase them from architectural salvage stores and they will be easy to install once you have the sash unlocked. Based on the size of your window one or two sash weights may be needed to keep it in an open position.