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Window Sash Repairs

Window sashes must be inspected regularly for signs of mold, mildew and damage. By catching problems before they become serious you will save money on future repairs.

The sash is the interior framing that moves vertically up or down in windows that are open. This article will show you how to perform easy repairs to your sash.

Weather Stripping

Wood window sashes give the classic look to your home. If properly maintained, they can last for a long time. However, they can get damaged or deteriorated over time due to exposure or normal wear. Fortunately, sash repair specialists can restore your windows to their original condition and keep them looking great for much longer than newer replacement windows.

The first step in sash window repairs is addressing weather stripping. It's found on both the sash and frame. It can cause drafts if worn out or loose. Start by identifying the window repair brand and the manufacturer's date (etched on the glass's corner or the aluminum spacers between panes). Then, remove the sash and mark its height and width to find the appropriate weather stripping replacement to match.

Then, you can remove the sash from its holder and place it on an even surface that allows you to see all four sides. If your sash is double glazed window repairs-hung, you'll also need to remove the weights as well as their accompanying ropes, which should have fallen into the pocket that was intended to be in the jamb liner. After removing the sash with the utility knife, you can remove the weather stripping that was left by hand or using a putty knife.

Once the sash has been cleared, you can replace the stoppers that separate the two sashes. These are long pieces that split the sashes. Pam likes to replace them with standard 1/2-inch by 3/4-inch window trim from the lumberyard. However, you can also use scrap wood.

After removing the parting stops and cutting them to the desired length then apply a thin layer of glazing compound to the bottom of the sash. Smooth the compound with your putty knife, then let it dry for at least a day. When the putty is fully dried it is possible to apply a topcoat of acrylic. This will protect the putty and give your sash a fresh look.

Sash Hardware

The hardware that holds window sashes is prone to wearing out from age and use, and the result can be a door or window that isn't able to open or close easily. It's a good idea to know that replacing or repair of this hardware is typically straightforward and cost-effective. If you're having difficulty opening a sash, spray some lubricant into the jamb channel. Then slide the sash up and open to see if that fixes the issue. If not, the issue is most likely due to the sash balance and you'll have to take off the sash to gain access to this hardware.

double glazed window repairs sashes should be able to open and close with minimal effort. However, this can be difficult if weights are worn out or the sash-to rail connecting rail isn't coated. This issue can be caused by a variety of reasons, such as insufficient maintenance or the wrong weight rating for the specific window repairs sash.

If the hinge arms of a window are starting to slide, this could cause the sash to slide and eventually hit the frame in the corner that's opposite the hinge arm (Photo 1). To address 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). Then, put in the new sash (Photo 3).

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

It is crucial to have the tools needed before you begin. Start by marking the location of the hinge channel on the frame with pencil (Photo 1). This will allow you to get the channel back in place correctly when you're finished. Take the sash off and take out all the hardware, including the parting beads, cords, and chains that help to hold the sash. Heat gun with nozzle shield and a medium setting can soften any putty that has been hardened. Remove the old sash, and put it in a bag that is labeled.

Sash Weights

No matter if your window sash repair needs are to replace a damaged cord or to ensure that the windows are functional, replacing worn out sash weights will improve sash operation and reduce energy costs. Sash weights are hefty lead or iron cylinders enclosed in a hidden cavity and connected to the movable window sash using rope. They provide counterbalance, allowing the window to be opened and closed without the need for mechanical or electrical devices. The sash-weights are typically disregarded or disabled by homeowners, and are turned into scrap when they fail; therefore, you may need to search for replacements.

It's difficult to retrieve an sash-weight which has fallen from the cavity, so you'll want to find one that is suitable for the. You will also require a new piece string, a length of sashcord and a few sashpulleys to secure the new weights to the cord.

Older windows made of wood are joined with mortise and tenon joints. Hammers and pins can be used to cut off the wood pegs that hold the parts together. Most of these pegs have large diameters on one side and a smaller one on the other side, so it is crucial to take out the smaller-diameter ones first. Sashes that were made later in the century utilized glue instead of pegs and can be separated by cutting through the glue line using the help of a knife, and then tapping the mortised section loose using a mallet.

After the sash has been removed then you can take out the sash stop and gain access to the weight pocket. Usually it is done by drilling an opening at the bottom of each jamb. This hole is covered with the wooden panel which can be removed to reveal the inside workings.

Once the sash is stopped and the access panel is removed, you can take off the weight that was previously installed and replace it. Make sure you weigh the sash before you begin, as the old weights could be a different size than the one you need. After the new weight is installed then tie a string to it and then thread it through the pulley of the sash. Then attach the string to the frame, but only leave a few inches of string protruding from the head 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 balanced within the jamb. Over time, these chains can become damaged and make it difficult to raise windows. A new sash cable will give you the ability to raise and lower the sash, and keep it in position 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 installed by screws or nails and must be removed or repositioned. It may be possible to take them out using the hammer or chisel however, it is best to lay out dust sheets prior to starting any work.

Once the access panel is removed, you can begin working on the sash. Take the narrow beads (also called "tie rails") out of their grooves with flat bar or chisel. They are typically wedged into or nailed in, but they can be removed which is why it's worth your time. If the sash remains in place, pry out the mortise and tenon joints using the help of a hammer and pin or screwdriver, then unhook the wood pegs on each component. You should be able to move the sash back and forth without difficulty, though it may require oil if it feels stiff.

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

If you don't have an item that replaces the old counterbalance system it's best to keep the original balancing weights in place. It's cheap to purchase these from salvage shops for architectural purposes and they will be easy to install once you have the sash open. Based on the size of your window, two or three sash weights could be needed to keep it open.