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Window Sash Repairs

Window sashes need to be checked regularly for mold, mildew, and damage. By catching problems before they become serious, you can save money on repairs in the future.

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

Weather Stripping

Wooden window sashes can add an elegant look to your home. They are also durable and last for a long time provided they are properly maintained. However, they can be damaged or degrade as time passes due to exposure to the elements and normal wear and wear and tear. However, sash repair experts can bring your windows back to their original condition and keep them looking great for a longer period of time than replacement windows.

Weather stripping is the primary thing to address when repairing windows with sash. It is located on both the frame and the sash. It could cause drafts if worn or loose. Begin by identifying the window brand and the date of manufacture for the glass (etched on the glass's corners or on the aluminum spacers between panes). Take the sash off, and mark its width and height so you can get replacement weather stripping that matches.

Then, you can remove the sash from the holder and place it on flat surfaces to allow you to reach all four sides. If your sash is double-hung, you'll have to take off the weights and their accompanying ropes, which should have fallen into the intended pocket in the jamb liner. After you've removed the sash using a utility knife, you can use it to cut away the old weather stripping at the corners. Then, take it off by hand or using a putty blade.

When the sash is clean it is time to replace the parting stops. These are long pieces that separate the sashes. Pam likes to replace these with standard 1/2-inch-by - 3/4-inch window trim from the lumberyard, but you can also replace them with a piece of scrap wood.

After removing the parting stops and trimming them to the desired length and thickness, apply a thin layer of glazing compound to the bottom of the sash. Smooth the compound with your putty tool and let it dry at least one day. After the putty has completely dried, you can apply an acrylic latex topcoat. This coating will protect the putty and give your sash a fresh appearance.

Sash Hardware

The hardware that holds window sashes is susceptible to wear and tear due to age and use and the result could be a door or window that isn't able to open or close easily. The good news is that fixing and replacing this hardware is typically relatively easy and affordable. If you're 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 not, the issue is likely with the sash balance, and you'll have to take off the sash to gain access to this hardware.

Ideally, window sashes should swing open and closed with very little effort, but this is an issue when the weights are worn or if the sash's meeting rail isn't properly coated. This problem can be caused by a variety of factors, including the lack of maintenance or the wrong weight rating for the particular window sash.

If the hinge arms of a window are starting to sag, this can cause the sash to drag and eventually land on the frame in the corner that's opposite the hinge arm (Photo 1). To remedy the issue ensure that the sash is centered in the frame opening, and then remove it. If the sash has been attached to the hinge arm, unbolt the hinge and replace it. (Photo 2). Then, you can install the new sash (Photo 3).

Because of sagging hinges and a general lack in energy efficiency, windows that are old particularly those in older houses, could be difficult to open or close. In most instances, a few easy repairs can transform these windows into smooth operation again and save the homeowner cash on energy costs.

It is important to have the tools you need before you begin. Begin by marking the location of the hinge channel on the frame using a pencil (Photo 1). This will assist you in getting the channel back on the correct position after you've finished. Remove the sash and take out all the hardware, including the parting beads, cords, and chains that keep the sash in place. Soften any putty that has been hardened with an electric heat gun set to medium and equipped with an shield to block the nozzle. Remove the old sash and put it in a labelled bag.

Sash Weights

Sash weights can be replaced to enhance the efficiency of your window sash and reduce energy costs. Sash weights are heavy, lead or iron cylinders that are enclosed in a hidden cavity and connected to the movable window sash using a rope. These weights function as counterbalances, which allows you to open and close the window without having to use mechanical or electrical devices. The sash weights are usually neglected or ignored by homeowners, and are turned into scrap when they fail. Consequently you may have to search for replacements.

It is difficult to recover the sash-weight that fell from the cavity, so you'll need to find one that fits properly. You will also need a new piece of string, a length of sash cord, and a few sash pulleys to tie the new sash weights the sash cord.

Mortise and Tenon joints can be used to join older wood windows. Pin punch and hammer can be used to take out the wood pegs holding the components together. The majority of these pegs are large on one side, but smaller on the other. It is crucial to remove first the smaller diameter sides. Later sashes used glue instead of pins. They can be cut with a knife and mallets.

Once the sash has been removed, you can take off the sash stops and access the weight pockets. Usually it is done by drilling a hole near the bottom of each jamb. This hole is then covered by an access panel made of wood which can be removed to allow you to see the inner workings of the frame.

When the sash has been shut off and the access panel has been removed, you are able to remove the weight that was previously installed and replace it. Make sure you weigh the sash before you do this, since the old weights could be a different size than the one you need. Once the new weight is installed, tie a string to it and then thread it through the pulley of the sash. Then, you can nail the string to the frame, leaving a few inches of string sticking out from the head to allow for future adjustments.

Sash Cords

The majority of double glazed window repairs-hung windows with a history include a chain or cord attached to the weights that supports and keeps the sashes balanced in the jamb. As time passes, these cords may break, making it difficult to raise the window. A new sash cable can restore the ability to move and lower the sash, and keep it in place when opened.

To replace sash cords, the first step is to remove the access panels from the jambs. These are usually installed by screws or nails and will require to be removed or relocated. You could use a hammer and chisel for removing them but it's best to lay down dust sheets prior to commencing any work.

After you have removed the access panel, you can begin to work on the sash. Take the narrow beads (also called "tie rails") out of their grooves with the chisel or flat bar. They are usually wedged in or nailed, but they can be prised free, so it's worth taking your time here. If the sash remains in place, Window repairs break the mortise and tenon joints with a hammer and pin punch or screwdriver, and then take out the wood pegs attached to each component. You should now be able to move the sash around freely, although it might require lubrication if it feels stiff.

With the sash in an open position, measure enough sash cord/chain to reach from the pulley in the top of the jamb to the sash slot in the bottom. Cut the cord/chain and then fix it as described in the previous step. You can use nail, hammer or screws. However, nails are less likely to cause damage.

It is best to keep the weights that came with the original counterbalance unless you have purchased a kit that will replace the counterbalance that was previously installed. It's not expensive to buy them from architectural salvage stores and they will be easy to install once you have the sash open. Depending on the size of your window one or two sash weights may be needed to keep it open.