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Window Sash Repairs

Window sashes need to be inspected regularly for signs of mold, mildew and other damage. You can save future repair glass costs by catching problems early on before they become out of control.

The sash is an inside frame that moves upwards and downwards in windows that open. This article will show you how to perform easy repairs to your sash.

Weather Stripping

Wood window sashes provide a classic aesthetic to your home and, when properly maintained, can last for many years. However, they can become damaged or degraded with time due to exposure and normal wear and tear. Fortunately, sash upvc doors repair specialists can restore your windows back to their original condition and keep them looking great for longer than replacement windows.

The first step in sash window repairs is addressing weather stripping. It's found on both the sash and frame. It could cause drafts if damaged or is loose. Begin by identifying the window brand and the manufacturer's date (etched on the glass's corner, or the aluminum spacers between panes). Take the sash off and mark its width and height so you can purchase new weather stripping that is compatible with the original.

Then, remove the sash from its holder and place it on an even surface that allows you to reach all four sides. If your sash was double-hung, you must remove the weights with their ropes that should be buried in the jamb lining. After you've removed the sash, use a utility knife to cut off the old weather stripping at the corners, then remove it by hand or using a putty knife.

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

After removing the stopper for the parting and trimming it to length, apply a thin coat of glazing compound over the bottom of the sash. Smooth the compound with your putty tool and allow it to dry for at least a day. Once the putty has fully dried and dried, you can apply a topcoat of acrylic. This coating will protect the putty and give your sash a new look.

Sash Hardware

The hardware that supports window sashes is prone to wearing out from time and usage and the result could be a door or window that isn't able to open or close easily. It's a good idea to know that replacing or repair a window of this hardware is typically simple and inexpensive. If you are having trouble opening a sash, spray some oil into the jamb channel. Then, slide the sash open to see if it resolves the problem. If the issue persists it's likely to be due to the sash's balance. You will need remove the window sash in order to reach this hardware.

The ideal situation is for window sashes to be able to open and close with very little effort, but this can be a difficult task if the weights become worn or if the sash meeting rail isn't properly glazed. This issue can be due to various reasons such as the lack of maintenance or a mismatched weight rating.

If the hinge arms on windows begin to slide, this could cause the sash to drag and then hit the frame at the opposite corner (Photo 1). To fix this problem, first ensure that the sash is squarely inserted into the opening of the frame and then take it out of the window. If the sash is secured to the hinge arm, you'll need to loosen the hinge arm and replace it (Photo 2). Then, you can install the new sash (Photo 3).

Old upvc windows repairs, especially those in older homes, can be difficult to open and close because of sagging hinges and general inefficiency. Sometimes just a few easy fixes can allow these windows to operate smoothly again and save homeowners money on their energy bills.

In order to make these sash repairs it is important to have all 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 right position after you've finished. Remove the sash and remove the hardware including the beads that separate (Photo 2) and the chains or cords that hold it in place. Heat gun with nozzle shield and medium setting will soften any putty that has been hardened. Take off the old sash and keep it in a bag labeled.

Sash Weights

Whether your window sash repairs are to replace a damaged cord or just to keep your windows functioning, replacing worn out weights for sash will improve its operation and cut down on energy consumption. Sash weights are made of heavy iron or lead cylindricals that are contained inside a concealed cavity, and attached by ropes to the movable window sash. These weights function as counterbalances, which allows you to open and close the window without requiring mechanical or electrical devices. If they fail, sashweights are often left unnoticed or disabled by homeowners.

It is difficult to recover an sash-weight which has fallen from the cavity, so you'll need to find one that fits properly. You will also require an additional piece of string, a length the sash cord, as well as some sash pulleys that will tie the new sash weights to the sash cord.

Older windows made of wood are joined using mortise and tenon joints. The wood pegs that hold the parts together can be removed with a pin punch and hammer. Most of them have a large diameter on one side and a smaller size on the other, so it is crucial to take out the smaller-diameter ones first. Later sashes made use of glue instead of pins. They can be separated by using a knife and mallet.

After the sash is removed then you can take out the sash stop and access the weight pocket. This is typically done by drilling a small hole in the bottom of each jamb. The hole is then covered with a wooden access panel which can be removed to let you see the inner workings of the frame.

After you have the sash stopped and the access panel removed, you'll be able to remove the weight from the sash and replace it with the new. Be sure to weigh the sash first to ensure that the weights you have might not be the right size. Once the new weight is in place then tie a string to it and thread it through the sash pulley. Then attach the string to the boxed frame, leaving a few inches of string protruding from the head to allow for future adjustments.

Sash Cords

In the majority of double-hung windows, a chain or cord is connected to the weights. This keeps the sashes in the jamb level. As time passes, these cords may become damaged and make it impossible to raise windows. A new sash cord will give you the ability to move the sash upwards and downwards and will keep it in its place when it is opened.

To replace sash cords the first step is to remove the access panels from the jambs. These are usually fixed or screwed in and must be removed or relocated. You might be able to use a hammer and chisel to remove them, but it's always better to lay down dust sheets before beginning any work.

After you have removed the access panel, you can begin working on the sash. Make the small parting beads (also known as "tie rails") out of their grooves using a chisel or flat bar. They are usually wedged in or nailed in, but they can be snipped out, so it's worth taking your time here. If the sash is in place, remove the mortise and tenon joints using the help of a hammer and pin or screwdriver, and then take out the wood pegs attached to each piece. You should now be able to move the sash back and forth freely, though it may require lubrication if it feels stiff.

Determine the length of the sash chain or sash cord required to reach the sash slot on the bottom of the pulley located at the top of the jamb. Cut the chain or cord and secure it as in the previous step. You can do this with a hammer, nails or screws. However, nails are less likely to cause damage.

If you haven't purchased a kit that replaces the old counterbalance system, it's best to keep the original balancing weights in place. They're not expensive and easy to install if you purchase them from architectural salvage stores. Depending on the size and shape of your window you may require one or two sashweights to keep the sash open.