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Window Sash Repairs

Check the windows sashes regularly for any damage, mildew and mold. By catching these problems early, you can save money on future repairs.

The sash is the interior framing that can be moved vertically either up or sash down in windows that are open. This article will teach you how to carry out a few simple repairs to sash.

Weather Stripping

Wood window sashes give an elegant look to your home. If properly maintained, can last for years. However, they can be damaged or degraded over time, due to exposure and normal wear and tear. Sash repair experts can restore windows back to their original condition and maintain their appearance much longer than replacement windows.

Weather stripping is the first aspect to consider when you are repairing windows with sash. It's on both the frame and sash. If it's damaged or worn out, it could cause drafts and other problems. To fix it, begin by finding your window 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 you can find replacement weather stripping to match.

Then, remove the sash and place it on a surface so you can access all four sides. If your sash was double-hung, you must remove the weights with their ropes that should have fallen into the pocket within the jamb lining. After removing the sash with the utility knife, you can remove the weather stripping that was left by hand or using a putty knife.

Once the sash has been cleared, you can install the stoppers that separate the two sashes. These are long pieces 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, but you can also use a piece of scrap wood.

After removing the stoppers for parting and cutting them to the desired length, apply a thin layer of glazing compound over the bottom of the sash. Smooth it out using your putty knife, then let it dry for at least a day. After it has fully dried and dried, apply a second coat of acrylic latex paint. This will help protect the putty and give your sash a fresh look.

Sash Hardware

The hardware that holds the window sashes can wear out over time and use. This could lead to 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 lubrication into the jamb channel then slide it open to see if this resolves the issue. If the issue continues it's likely the sash balance. You'll need to take off the window sash to reach this hardware.

Ideally, window replacement sashes should be able to open and close without effort, but this is an issue when the weights wear out or if the sash meeting rail isn't properly coated. This problem can be caused by a variety of things, such as insufficient maintenance or a mismatched weight rating for a particular window sash.

If the hinge arms of a window begin to slide, this could cause the sash's to drag and eventually hit the frame in the corner opposite the hinge arm (Photo 1). To address this issue, first make sure the sash is firmly seated in the frame's opening and then remove it from the window. If the sash is screwed to the hinge arm, you'll have to unscrew the hinge arm and replace it (Photo 2). Then, put in the new sash (Photo 3).

Old windows, particularly those in older homes, may be difficult to close and open due to hinges that are sagging and a general inefficiency. In many cases it is a matter of making a few minor adjustments that can help these windows function smoothly once more and help homeowners save money on energy costs.

To make these repairs to sash it is important to have all the tools needed before you begin. Mark the hinge channel's location on the frame (Photo 1) with a pencil. This will help you get the channel back on place correctly when you're finished. Remove the sash and take off the hardware including the parting beads (Photo 2) and the cords or chains that secure it. Soften any hardened putty with the help of a heat gun set at medium and equipped with a shield to block the nozzle. Remove the old sash, and put it in a bag with a label.

Sash Weights

Sash weights can be changed to improve the performance of your window sash and decrease the cost of energy. Sash weights are made of heavy lead or iron cylindricals that are contained in a concealed cavity and attached by a rope to the movable window sash. They are counterbalancers, allowing the window to be shut and opened without the need for mechanical or electrical devices. The sash weights are often disregarded or disabled by homeowners and then turned into scrap when they break; therefore you may have to find replacements.

A weight in a sash that has fallen out of the cavity is difficult to recover, so you will want to find a new one that fits properly. You will also need an additional piece of string, a length of the sash cord, as well as some sash pulleys to tie the new sash weights the sash 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 these pegs have large diameters on one side and a smaller one on the other side, so it is crucial to take out the smaller-diameter ones first. Later sashes used glue instead of pins. They can be separated by using a knife or a mallet.

After the sash has been removed, you can remove the stopper on the sash and get access to the weight pocket. Usually, this is done through a hole near the bottom of each jamb. This hole is covered by an access panel of wood that can be ripped off to allow you to see the inner workings of the frame.

Once you have the sash stopped and the access panel removed, you'll be able to remove the old sash weight and replace it with the new. Be sure to weigh the sash before you begin, as the old weights could be different sizes than what is needed. Once the new weight is in place then tie a string to it and thread it through the sash pulley. Then, you can nail the string to the frame, leaving a few inches of string hanging from the head to allow for future adjustments.

Sash Cords

In most old double-hung window, a cord or chain is affixed to the weights. This helps keep the sashes within the jamb in a balanced manner. As time passes, these cords may break, making it impossible to raise the window. A new sash cord will give you the ability to move the sash up and down and keep it in position when it is opened.

The first step in replacing cords for sash is to locate and remove the access panels in the jambs. They are typically screwed or nailed in and must be removed. You could use a hammer and chisel to remove them but it's best to lay down dust sheets before starting any work.

After the access panel has been removed, you can start working on the sash. Utilize a flat bar or chisel to pull the tiny partsing beads out of their grooves. These are often wedged in or nailed in, but they can be removed which is why it's worth your time. If the sash remains in place, pry the mortise and tenon joints free with a screwdriver or hammer, then remove each wood peg. It should now be possible to move the sash around without difficulty, though it will probably need some lubrication if it feels stiff.

Determine the length of the sash chain or sash cord required to reach the sash slot at the bottom, and the pulley located at the top of the jamb. Cut the cord or chain and fix it as described in Step 6 above. You can employ a hammer, nail or screws, but nails are less likely to cause damage.

It is best to keep the weights that came with the original counterbalance unless you've purchased a kit that will replace the counterbalance. It's not too expensive to purchase them from a salvage store and they'll be easy to install once you have the sash opened. Based on the size of your window two or three sash weights could be needed to keep it in an open position.