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Window Sash Repairs

Window sashes must be inspected regularly for signs of mold, mildew and damage. If you catch these issues early you will save money on future repairs.

The sash is an interior frame that can move vertically up and down in windows that are open. This article will show you how to perform simple sash repairs.

Weather Stripping

Wooden window sashes are a great way to add a classic look to your home. They are also durable and can last many years provided they are properly maintained. They may, however, get damaged or deteriorated over time, due to exposure and normal wear. However, sash repair experts can bring your windows repairs back to their original condition and keep them looking fantastic for a longer period of time than replacement windows.

The first step in repair sash windows is to address weather stripping, which is found on both the sash as well as the frame. It could cause drafts if worn out or loose. Begin by identifying the window's brand and the date of manufacture for the glass (etched on the glass's corners, or the aluminum spacers between panes). Then, take the sash off and mark its width and height to find new weather stripping that matches.

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 your sash has been double-hung, take out the ropes and weights that should be buried in the jamb lining. Once you've taken the sash off using a utility knife, you can use it to cut away the weather stripping from the corners, then remove it manually or with a putty knife.

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

After removing the parting stops and trimming them to your desired length then apply a thin layer of glazing compound to the bottom of the sash. Smooth the compound with your putty knife, and then let it dry for a minimum of a day. Once the putty has fully cured and dried, you can apply an acrylic latex topcoat. This will protect the putty and give your sash a fresh appearance.

Sash Hardware

The hardware that supports window sashes is prone to wearing out from time and usage, and the result can be a window or door that isn't able to open or close easily. The good news is that repairing window and replacing this hardware is typically very simple and cost-effective. If a sash is difficult to operate try spraying grease into the jamb channel then slide it open to see if this solves the issue. If not, the problem is most likely due to the sash balance and you'll need to take out the sash to access this hardware.

Sashes for repairing upvc windows should be able to be able to open and close with minimal effort. However, this can be a challenge if the weights have been worn out or the sash-to rail meeting rail is not properly glazed. This issue can be due to a variety of factors such as the lack of maintenance or a mismatched weight rating.

If the hinges on a window begin to sag this could cause the sash to drag and eventually hit against the frame at the opposite corner (Photo 1). To resolve this issue, first make sure the sash is squarely inserted into the frame's opening and then take it out of the window. If the sash has been attached to the hinge arm, unbolt the hinge and replace it. (Photo 2). Install the new sash (Photo 3).

Old windows, particularly those in older homes, can be difficult to open and close, due to sagging hinges and general lack of energy efficiency. In many cases, a few simple repairs can transform these windows into smooth operators again and save the homeowner money on energy bills.

In order to make these sash repairs it is essential to have all of the necessary tools lined up before you begin. Begin by marking the location of the hinge channel on the frame using pencil (Photo 1). This will allow you to get the channel back on place correctly when you're finished. Remove the sash and take off the hardware including the beads that separate (Photo 2) and the chains or cords that secure it. A hot gun with nozzle shield and a medium setting can soften any putty that has been hardened. Take off the old sash and store it in a bag labeled.

Sash Weights

Whether your window sash repairs are to replace a broken cord or to keep your windows functioning by replacing worn out sash weights will improve sash operation and reduce energy consumption. Sash weights are hefty lead or iron cylinders enclosed in a concealed cavity and attached to the movable the sash with a rope. They provide counterbalance, allowing the window to be opened and closed without using mechanical or electrical devices. The sash weights are often neglected or ignored by homeowners and then turned into scrap when they fail. Consequently you may have to locate replacements.

It's difficult to retrieve the sash-weight that fell from the cavity, so you'll want to find one that fits properly. You will also require a fresh piece of string, a length of sashcord and some sashpulleys to tie the weights you are replacing to the cord.

Mortise and Tenon joints can be used to join older wood windows. Hammers and pins can be used to remove the wood pegs holding the components together. The majority of them have an enormous diameter on one side and a smaller one on the other, which is why it is essential to remove the smaller-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 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 it is done by drilling a hole near the bottom of each jamb. The hole is then covered with an access panel of wood that can be cut off to let you view the inside of the frame.

After the sash has been stopped and the access panel removed, you will be able to take off the weight from the sash and replace it with new. First, weigh the sash to ensure that the weights you have might not be of the right size. After the new weight is installed you can tie a string around it and thread it through the pulley for the sash. Then attach the string to the boxed frame, but only leave a few inches of string hanging from the head to allow for future adjustments.

Sash Cords

Most old double-hung windows come with a chain or cord attached to the weights that keeps the sashes level within the jamb. Over time, these chains may become damaged and make it impossible to raise windows. A new sash cord will restore the ability to move the sash upwards and downwards and keep it in place when opened.

The first step to replace cords for sash is to locate and remove the access panels within the jambs. They are usually nailed or screwed in and will need to be removed or moved. It is possible to remove them with a hammer or chisel, however, it is best to lay out dust sheets before starting any work.

After removing the access panel, you can begin to work on the sash. Utilize a flat bar or chisel to pull the narrow parting beads out of their grooves. These are often wedged in or nailed but can be prised free, so it's worth taking your time here. If the sash is still in place, pull the mortise and tenon joints free using a hammer or screwdriver and then take out each wood peg. You should now be able to move the sash back and forth without difficulty, though it might require lubrication if it feels stiff.

Measure the length of sash chain/sash cord needed to reach the sash slot on the bottom, and the pulley at the top of the jamb. Cut the chain or cord, and then fix it using the step 6 above. You can either employ a hammer and nail or screws, but nails are less likely to cause damage.

It is recommended to keep the weights that came with the original counterbalance unless you've purchased a kit that will replace the counterbalance that was previously installed. They are not expensive and are easy to install if purchased them from architectural salvage stores. Based on the size of your window, one or two sash weights could be needed to keep it open.