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How To Know If You're At The Right Level For Window Sash Repairs
Window Sash Repairs

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

The sash is the interior framing that can be moved vertically either up or down in windows that are open. This article will show you how to carry out a few simple repairs to sash.

Weather Stripping

Wood window sashes add a classic aesthetic to your home. When properly maintained, they can last for a long time. They may, however, become damaged or degraded with 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.

Weather stripping is the primary issue to take care of when fixing sash windows. It is located on both the frame and sash. It could cause drafts if worn out or loose. To fix it, start by determining the brand of your window and the date on which the glass was manufactured (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 find a replacement weather stripping that matches.

Next, remove the sash and set it on a work surface to allow access to all four sides. If the sash is double-hung, you'll have to remove the weights and the ropes that go with them, which should have fallen into the intended pocket in the jamb liner. Once you've removed the sash using a utility knife, you can use it to remove the weather stripping from the corners. Then, take it off by hand or using a putty blade.

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

After removing the stoppers for parting and cutting them to the desired length, apply a thin layer of glazing compound over the bottom of the sash. Smooth the compound with your putty tool, and allow it to dry for at least one day. Once the putty has fully dried it is possible to apply a topcoat of acrylic latex. This will protect the putty and give your sash a modern appearance.

Sash Hardware

The hardware that supports window sashes is susceptible to wear and tear due to age and use, and the result can be a door or window that isn't able to open or close easily. It's good to know that replacing or repairing this hardware is often straightforward and cost-effective. If you're having difficulty opening the sash, spray some lubricant into the jamb channel. Then slide the sash out to see if that fixes the problem. If not, the problem is likely with the balance of the sash and you'll have to take off the sash to access this hardware.

Ideally, window repairs must be able to open and close with very little effort, but this can be a difficult task when the weights are worn or if the sash's meeting rail isn't properly coated. This issue could be caused by various reasons that include an absence of maintenance or a mismatched weight rating.

If the hinges on the window begin to move, this could cause the sash to drag, and then eventually to hit the frame in the opposite corner (Photo 1). To remedy the issue make sure the sash is aligned in the frame opening and then take it off. If the sash is fixed to the hinge arm, unbolt the hinge and replace it. (Photo 2). Install the new sash (Photo 3).

Because of sagging hinges and a general lack of energy efficiency, windows that are old, especially those in older homes, may be difficult to open and close. In most instances, a few minor repairs can turn these windows into smooth operation and save homeowners money on energy bills.

In order to make these repairs to the sash it is essential to have all the necessary tools in place before you begin. Begin by marking the location of the hinge channel on the frame using a pencil (Photo 1). This will allow you to position the channel in the correct location after you've completed. Take the sash off, and remove all the hardware including the parting beads cords, chains, and cords that hold the sash in place. The nozzle shield of the heat gun and medium setting will soften any hardened glue. Remove the old sash, and store it in an bag that is labeled.

Sash Weights

Sash weights are able to be replaced to enhance the efficiency of your window sash, and also reduce energy costs. Sash weights are hefty lead or iron cylinders that are enclosed in a concealed cavity and connected to the movable the sash with a rope. These weights act as counterbalances, allowing you to open and close the window without requiring mechanical or electrical devices. The sash weights are usually disregarded or disabled by homeowners and then turned into scrap when they break; therefore, you may need to find replacements.

A sash weight that has fallen out of the cavity is difficult to get back, so you will want to find a new one that is suitable for the. You will also need an additional piece of string, a length of sash cord and some sash pulleys that will tie the new sash weights onto the sash cord.

Older windows made of wood are joined with mortise and tenon joints. Hammers and pins can be used to remove the wood pegs that hold the components together. The majority of these pegs are large on one side and smaller on the other. It is crucial to remove first the smaller diameter sides. Later sashes made use of glue instead of pins. They can be cut by using a knife and mallet.

Once the sash is freed then you can take out the sash stop and gain access to the weight pocket. This is usually done through an opening at the bottom of each jamb. The hole is then covered with an access panel of wood that can be cut off to allow you to view the inside of the frame.

Once the sash is stopped and the access panel has been removed, you can take off the old weight and replace it. Be sure to weigh the sash before you do this, since the old weights could be different in size from what you require. After the new weight is installed, run a string through the sash pulling mechanism. Then, you can nail the string to the frame, but leave a few inches of string sticking out from the head for future adjustment.

Sash Cords

In the majority of double-hung windows, a cord or chain is affixed to the weights. This keeps the sashes of the jamb balanced. As time passes, these cords may break, making it impossible to raise the window. A new sash cable can restore the ability to raise and lower the sash and ensure it stays in place when opened.

To replace straight from the source , the first step is to remove the access panels from the jambs. They are typically fixed or screwed in and must be removed or moved. You may be able to use a hammer and chisel to prise them off, but it's always better to lay down dust sheets prior to beginning any work.

Once the access panel is removed, you can begin working on the sash. Utilize a flat bar or chisel, to pry the small parting beads out of their grooves. They are usually wedged in or nailed but can be prised free, so it's worth taking your time. If the sash remains in place, remove 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 the components. It should now be possible to move the sash back and forth freely, although it may require oiling if it seems stiff.


With the sash in an open position Take a measurement of the sash chain to reach from the pulley on the top of the jamb to the sash slot on the bottom. Cut the cord or chain and then attach it as described in the step 6 above. You can employ a hammer, nail or screws, but nails are less likely to cause damage.

It's best to leave the weights that came with the original counterbalance unless you've purchased a kit to replace the old counterbalance. They're not costly and easy to install if you purchase them at architectural salvage stores. Based on the dimensions and shape of your window you may require one or two sashweights in order to keep the sash open.

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