Window Sash Repairs

Sashes for windows must be checked regularly for mold, mildew and other damage. You can avoid the cost of repairs in the future by catching these issues early, before they become too much.

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

Weather Stripping

Wooden window sashes are a great way to add a classic look to your home. They are also sturdy and can last many years when they are maintained properly. However, they can be damaged or deteriorate over time due to exposure to the elements and wear and tear. Fortunately, sash repair specialists can restore your windows to their original condition and keep them looking fantastic for much longer than newer replacement windows.

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

Then, you can remove the sash from its holder, and place it on a flat surface to allow you to access all four sides. If your sash has been double-hung, remove the ropes and weights that should fall into the pocket within 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 take it off by hand or with a putty knife.

Once the sash has been cleared, you can install parting stops. These are long pieces that divide the sashes. Pam prefers to use standard 1/2-inch by 3/4-inch window repair trimming from the lumberyard. However, you could also substitute a scrap piece of wood.

After removing the stoppers for parting and trimming them to your desired length then apply a thin layer of glazing compound over the bottom of the sash. Smooth the compound using your putty tool, and let it dry at least a day. After the putty has completely cured it is possible to apply a topcoat of acrylic latex. This will help protect the putty and give your sash a fresh look.

Sash Hardware

The hardware that supports window sashes can wear out over time and with use. This could lead to the window or door that is difficult to open or close. It's a good idea to know that replacing and repairing this hardware is often straightforward and cost-effective. If you're having trouble opening the sash, spray some grease into the jamb channel. Then slide the sash out to see if that fixes the problem. If not, the issue is likely to be with the sash balance and you'll need to remove the sash to access the hardware.

Ideally, window sashes must move open and shut with minimal effort however, this can be a difficult task if the weights become worn or if the sash meeting rail isn't properly glazed. This problem could be caused by a variety of factors that include a lack of maintenance and an unmatched weight rating.

If the hinge arms on a window begin to sag this can cause the sash drag and then hit the frame at the opposite corner (Photo 1). To fix the problem make sure the sash is aligned in the frame opening and then remove it. If the sash was attached to the hinge arm, take it off the hinge and replace it. (Photo 2). Then, you can install the new sash (Photo 3).

Old windows, especially those in older homes, can be difficult to open and close, due to hinges that are sagging and a general lack of energy efficiency. Sometimes it is a matter of making a few minor adjustments that can allow these windows to operate smoothly once more and help homeowners save money on energy bills.

In order to make these repairs to sash it is essential to have all the necessary tools lined up before you begin. Begin by marking the location of the hinge channel on the frame using a pencil (Photo 1). This will make it easier to put the channel in the proper location after you've completed. Remove the sash, and remove all the hardware, including the parting beads, cords, and chains that keep the sash in place. A hot gun with nozzle shield and a medium setting will soften any hardened glue. Take off the old sash and put it in a bag with a label.

Sash Weights

Sash weights can be replaced to enhance the efficiency of your window sash, and also reduce the energy cost. Sash weights are hefty lead or iron cylinders, which are enclosed inside a hidden compartment and linked to the moveable the sash with rope. These weights function as counterbalances, allowing you to open and close the window without the need for mechanical or electrical devices. When they fail, sashweights are usually left unnoticed or disabled by homeowners.

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 new piece of string, a length sash cord, and a few sash pulleys to tie the new sash weights to the sash cord.

Older wood windows are joined with mortise and tenon joints. Hammers and pins can be used to remove the wood pegs that hold the components together. Most of them have large diameters on one side and a smaller diameter on the other, which is why it is crucial to take out the smaller-diameter sides first. Later sashes utilized glue instead of pins. They can be cut by using a knife or mallets.

Once the sash has been released, you can remove sash stops and access the pockets for weights. Usually, this is done through a hole near the bottom of each jamb. The hole is then covered with a wooden panel that can be removed to reveal the inner workings.

Once you have the sash stopped and the access panel removed, you will be able to remove the weight of the old sash and replace it with new. Make sure you weigh the sash before you do this, since the old weights may be a different size than what you require. After the new weight is installed you can tie a string around it and then thread it through the pulley for the sash. Then, you can attach the string to the boxed frame. Leave a few inches at the top of the string for future adjustments.

Sash Cords

Most double glazed window repairs-hung windows of the past include a chain or cord attached to the weights which supports and keeps the sashes in balance in the jamb. Over time, these chains can become damaged and render it impossible to raise windows. A new sash cord can restore the ability to move the sash up and down and will keep it in its place when opened.

The first step to replace sash cords is to locate and take out the access panels located in the jambs. These are usually fixed or screwed in and will require to be removed or repositioned. You could use a hammer and chisel to prise them off however, it is always best to lay down dust sheets prior to beginning any work.

After the access panel has been removed, you can start working on the sash. Prise the narrow parting beads (also known as "tie rails") out of their grooves using a chisel or flat bar. It is essential to be patient as they're often wedged or nailed in place. If the sash remains in place, break the mortise and the tenon joints by using the help of a hammer and pin or screwdriver, then remove the wood pegs that are on each component. It should now be possible to move the sash around freely, though it may require oil if it feels stiff.

Take a measurement of 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 cord or chain and attach it in the previous step. You can do this with nail, hammer or screws. However nails are less likely to cause damage.

Unless you've bought a kit that replaces the old counterbalance system it's best to keep the original weights for balancing in place. It's cheap to purchase these from salvage shops for architectural purposes and they'll be simple to install once you've got the sash unlocked. Depending on the size and shape of your window Repair you might need to install one or two sashweights in order to keep the sash open.