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Window Sash Repairs

Sashes for windows must be checked regularly for mold, mildew and other damage. By catching problems before they become serious you can save money on future repairs.

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

Weather Stripping

Wooden window sashes are a great way to add a classic look to your home. They are also durable and will last for many years when they are maintained properly. They may, however, be damaged or degraded over time due to exposure and normal wear. Fortunately, sash repair specialists can bring your windows back to their original condition and maintain their appearance for much longer than newer replacement windows.

Weather stripping is the first issue to take care of when fixing windows that have sash. It's located on both the frame and sash. It can cause drafts if it's worn out or loose. 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 doors on the aluminum spacer between panes). Take the sash off and mark its width and height so that you can find a new weather stripping that is compatible with the original.

Then, remove the sash from its holder, and place it on flat surfaces to allow you to reach all four sides. If your sash is double-hung, you'll need to remove the weights and their ropes which should have slipped into the pocket of the jamb liner. Once you've taken the sash off, use a utility knife to remove the old weather stripping at the corners, then remove it by hand or using a putty blade.

After the sash is cleared, you can replace the parting stops. These are long pieces that divide 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 use a piece of scrap wood.

After removing the stoppers for parting and trimming them to the desired length then apply a thin layer of glazing compound on the bottom of the sash. Smooth the compound using your putty knife, and let it dry at least one 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 supports the window sashes may wear out with time and use. This could result in windows or doors that is difficult to open or close. It's good to know that replacing and repair of this hardware is typically easy and affordable. If you're having difficulty opening a sash spray some lubricant into the jamb channel. Then, you can slide the sash out to see if this resolves the problem. If not, the problem is most likely due to the sash balance and you'll need to remove the sash to gain access to the hardware.

Window sashes need to be able to open and close with minimal effort. However, this may be difficult if weights are worn out or the sash-to-rail meeting rail is not properly coated. This problem could be caused by a variety of factors, including a lack of maintenance and an unmatched weight rating.

If the hinges on the window begin to move, this could cause the sash to drag and then hit the frame in the opposite corner (Photo 1). To correct the issue ensure that the sash is in the proper position within the frame opening, and then take it off. If the sash is screwed to the hinge arm, you'll need to unscrew the hinge arm 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 general lack of energy efficiency. Sometimes, a few simple fixes can allow these windows to operate smoothly once more and save homeowners money on energy bills.

In order to make these repairs to the sash, it's important to have all of the necessary tools lined up before you begin. Begin by marking the location of the hinge channel on the frame with a pencil (Photo 1). This will help you to position the channel in the right position after you've finished. Remove the sash and remove the hardware, including the parting beads (Photo 2) and the chains or cords that secure it. A hot gun with nozzle shield and medium setting will soften any hardened putty. Take off the old sash and store it in an bag with a label.

Sash Weights

If your window sash repairs are to replace a broken cord or just to keep your windows functioning, replacing worn out weights on sash can improve sash operation and help reduce energy costs. Sash weights consist of heavy lead or iron cylinders that are encased in a hidden cavity and connected by ropes to the movable window sash. They function as counterbalances, which allows you to open and shut the window without the need for mechanical or electrical devices. When they fail, sashweights are often ignored or disabled by homeowners.

A weight from a sash that fell out of the cavity is difficult to get back, so you will want to find a new one that fits properly. You will also need a new piece of string, a length of the sash cord, as well as some sash pulleys to connect the new sash weights to the sash cord.

Older windows made of wood are joined by mortise and tenon joints. The wood pegs holding the parts together can be removed by pin punches and hammers. Most of these pegs have a large diameter 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 mallet.

After the sash is removed and removed, you can take off the sash stop and access the weight pocket. Usually, this is done through an opening in the bottom of each jamb. The hole is surrounded by a wooden panel that can be removed to reveal the inner workings.

After you have the sash stopped and the access panel removed, you will be able to take off the weight from the sash and replace it with new. Be sure to weigh the sash first because the weights you've got may not be of the right size. After the new weight is installed you can tie a string around it and thread it through the sash pulley. Then nail the string to the boxed frame, but leave a few inches of string protruding from the head for future adjustments.

Sash Cords

In most old double glazing repairs-hung window, a cord or chain is attached to the weights. This keeps the sashes in the jamb balanced. Over time these cords can break, making it difficult to raise the window. A new sash cord will give you the ability to move the sash upwards and downwards and keep it in place when it is opened.

The first step in replacing sash cords is to locate and take out the access panels located in the jambs. They are usually fixed or screwed in and must be removed or moved. You may be able to use a hammer or chisel to prise them off but it's 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 called "tie rails") out of their grooves with a chisel or flat bar. They are typically wedged into or nailed, but they can be snipped out and it's worth your time here. If the sash is still in place, break the mortise and the tenon joints by using pin punch and hammer or screwdriver, and then take out the wood pegs on each component. The sash should be able to move freely now, but it may need some lubrication to feel less stiff.

Take a measurement of the length of sash chain/sash cord required to reach the sash slot on the bottom from the pulley located at the top of the jamb. Cut the cord/chain and then fix it using the previous step. You can use either nail, hammer or screws. However, nails are less likely to cause damage.

Unless you've bought an item that replaces the old counterbalance system it is recommended to keep the original balancing weights in place. It's not expensive to buy them from architectural salvage stores and they'll be simple to install once you've got the sash opened. Based on the size of your window, two or three sash weights may be needed to keep it in an open position.