Window Sash Repairs

Make sure to check the sashes of your windows regularly for signs of damage, mildew and mold. If you catch these issues early you will save money on repairs in the future.

The sash is an interior frame that is vertically moved upwards or downwards in windows that open. This article will show you how to do a variety of simple repairs to the sash.

Weather Stripping

Wood window sashes give the classic look to your home. When properly maintained, can last for a long time. They may, however, be damaged or degraded over time, due to exposure and normal wear and tear. Thankfully, sash repair experts can bring your windows back to their original condition and keep them looking fantastic for a longer period of time than replacement windows.

The first step to sash window repairs is addressing weather stripping, which is found on both the sash and frame. It can cause drafts if worn or loose. Start by identifying the window's brand and the date of manufacture for the glass (etched on the corner of the glass, or the aluminum spacers between panes). Then, take the sash off and mark its height and width, so you can find new weather stripping that matches.

Then, you can remove the sash from the holder and place it on flat surfaces to allow you to see all four sides. If your sash is double-hung, you'll need to remove the weights as well as the ropes that go with them, which should have fallen into the intended pocket in the jamb liner. After removing the sash using the utility knife, you can remove the old weather stripping by hand or with the putty blade.

After the sash has been cleared, you can replace parting stops. They are long pieces of wood that are used to separate the two sashes. Pam prefers standard 1/2-inch by 3/4-inch window repairs trim from the lumberyard. However, you can also use with a scrap piece of wood.

After removing the parting stop and trimming it to length, apply a thin coat of glazing compound over the bottom of the sash. Smooth the compound with your putty knife, then let it dry for a minimum of a day. Once the putty has fully cure it is possible to apply an acrylic latex topcoat. This will protect the putty and give your sash a modern look.

Sash Hardware

The hardware that holds the window sashes may wear out with time and use. This could lead to windows or doors that is difficult to open or close. The good thing is that fixing and replacing this hardware is typically very simple and cost-effective. If you're having trouble opening a sash spray some oil into the jamb channel. Then, you can slide the sash out to see if it resolves the issue. If not, the issue is likely to be with the balance of the sash and you'll need to take out the sash to access this hardware.

Sashes for windows should be able to be able to open and close with minimal effort. However, this may 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 caused by a variety of things, such as lack of maintenance or by a mismatched weight rating for the particular sash.

If the hinge arms on the window begin to move, this can cause the sash 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 opening of the frame and then take it out of the window. If the sash is screwed onto the hinge arm, unbolt the hinge and replace it. (Photo 2). Install the new sash (Photo 3).

Due to sagging hinges, and a general lack in energy efficiency, windows that are old, especially those in older homes, can be difficult to open and close. In most instances, a few easy repairs can turn these windows into smooth operation again and save the homeowner money on energy costs.

To complete these repairs to sash it is essential to have all of the necessary tools in place before you begin. Mark the hinge channel location on the frame (Photo 1) with pencil. This will allow you to get the channel back on the correct position after you've finished. Remove the sash and then remove all hardware, including the parting beads, cords, and chains that keep the sash in place. A hot gun with nozzle shield and medium setting will soften any hardened putty. Take off the old sash and keep it in a labeled bag.

Sash Weights

Sash weights can be changed to enhance the efficiency of your window sash and decrease the cost of energy. Sash weights are heavy lead or iron cylinders, which are enclosed inside a hidden compartment and connected to the movable sash by a rope. These weights function as counterbalances and allow you to open and shut the window without requiring mechanical or electrical devices. The sash-weights are typically neglected or ignored by homeowners and turned into scrap when they fail. Consequently you might need to find replacements.

A sash weight that has fallen out of the cavity is difficult to get back, so you will want to locate a new one that fits correctly. You will also require a fresh piece of string, a length sashcord and some sashpulleys to tie the weights you are replacing to the cord.

Older windows made of wood are joined using mortise and tenon joints. The wood pegs that hold the components together can be removed with pin punches and hammers. The majority of them are large on one side and smaller on the other. It is essential to first remove the smaller diameter sides. Later sashes used glue instead of pins. They can be separated with a knife and a mallet.

After the sash is removed and removed, you can take off the sash stop and access the weight pocket. This is usually done through an opening at the bottom of each jamb. The hole is then covered with an unfinished wooden panel that can be removed to reveal the inside workings.

Once you have the sash stopped and the access panel removed, you'll be able to take off the weight from the sash and replace it with new. Make sure you weigh the sash prior to you begin, window repairs as the old weights may be different sizes than the one you need. Once the new weight is installed you can tie a string around it and thread it through the pulley of the sash. Then, nail the string to your boxed frame. Leave a few inches protruding at the end of the string to allow future adjustments.

Sash Cords

The majority of double-hung windows with a history include a chain or cord connected to the weights that keeps the sashes in balance in the jamb. Over time, these chains can get damaged and make it impossible to raise the windows. A new sash cable can restore the ability to move and lower the sash and keep it in place when opened.

The first step to replace sash cords is to find and remove the access panels in the jambs. They are typically attached by nails or screws and require removal. You might be able to use a hammer or chisel to prise them off however, it is always best to lay down dust sheets before commencing 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 the chisel or flat bar. They are typically wedged into or nailed but can be prised free and it's worth your time here. If the sash is still in place, break the mortise and tenon joints with pin punch and hammer or screwdriver, and then take out the wood pegs that are on the components. You should now be able to move the sash around without difficulty, though it might require oiling if it seems stiff.

Determine the length of the sash chain or sash cord needed to reach the sash slot at the bottom, and the pulley located at the top of the jamb. 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 than screws 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. They're not costly and simple to install if you buy them at architectural salvage stores. Based on the size of your window two or three sash weights could be needed to keep the sash in an open position.