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window sash repairs (Read Full Report)

Window sashes need to be checked regularly for mold, mildew and other damage. If you catch these issues early you can save money on repairs in the future.

The sash is an interior frame that is able to move upwards and downwards in windows that are open. This article will demonstrate how to perform several simple repairs to the sash.

Weather Stripping

Wooden window sashes are a great way to add an elegant appearance to your home. They are also sturdy and can last many years if they are properly maintained. However, they can be damaged or deteriorate in time due to exposure to elements and wear and tear. Fortunately, sash repair specialists can restore your repairing upvc windows to their original condition and keep them looking great for longer than replacement windows.

The first step in repair sash windows is to address weather stripping, which can be found on both the sash as well as the frame. It can cause drafts if it's worn or loose. Start by identifying the window's brand and the date of manufacture for the repairing glass (etched on the glass's corner or on the aluminum spacers between panes). Then, take the sash off and mark its height and width to find replacement weather stripping to match.

Then, 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 need to remove the weights and their ropes that should have fallen into the intended pocket in the jamb liner. After removing the sash with the utility knife, [empty] you can remove the old weather stripping by hand or using a putty knife.

After the sash is cleared, you can replace the stoppers that separate the two sashes. These are long pieces wood that are used to separate the two sashes. Pam prefers to use the standard 1/2-inch by 3/4 inch window trimming from the lumberyard. But, you can substitute with a scrap piece of wood.

After removing the stoppers for parting and trimming them to your desired length then 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. Once it's fully cured and dried, apply a second coat of acrylic latex paint. This will protect the putty, and give your sash a modern appearance.

Sash Hardware

The hardware that holds window sashes is prone to wearing out from time and usage, and the result can be a door or window that can't be opened or closed 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 trouble opening the sash, spray some lubricant into the jamb channel. Then, you can slide the sash open to see if this resolves the problem. If not, the issue is likely to be with the sash balance and you'll need to remove the sash to access this hardware.

Ideally, window repair sashes must be able to open and close without effort, however, this can be an issue when the weights are worn or if the sash that joins rail isn't properly glazed. This problem can be caused by a variety of factors, including insufficient maintenance or a mismatched weight rating for the specific sash.

If the hinge arms of a window begin to sag, this can cause the sash's to drag and eventually hit the frame in the corner that's opposite the hinge arm (Photo 1). To resolve this issue, first make sure the sash is firmly seated in the opening of the frame and then take it out of the window. If the sash has been screwed to the hinge arm, you'll need to loosen the hinge arm and replace it (Photo 2). Install the new sash next (Photo 3).

Due to sagging hinges, and a general lack in energy efficiency, windows that are old especially in older homes, can be difficult to open and close. In most cases, a few simple repairs can transform these windows into smooth operation and save homeowners money on energy bills.

To make these repairs to the sash it is essential to have all of the tools needed before you begin. Begin by marking the position of the hinge channel on the frame with pencil (Photo 1). This will allow you to place the channel in the correct location after you've completed. Remove the sash and take out all the hardware, including the beads for parting, cords, and chains that hold the sash in place. Soften any hardened putty using the help of a heat gun set at medium and fitted with a shield to block the nozzle. Remove the old sash, and store it in an bag that is labeled.

Sash Weights

Whether your window sash repairs are to replace a damaged cord or to keep your windows functioning by replacing worn out sash weights will improve sash operation and reduce energy consumption. Sash weights are composed of iron or lead cylinders that are encased in a concealed cavity and attached by a rope to the movable window sash. These weights function as counterbalances and allow you to open and shut the window without the need for mechanical or electrical devices. The sash-weights are typically neglected or ignored by homeowners, and are turned into scrap when they fail. Consequently, you may need to find replacements.

It's not easy to retrieve the sash-weight that fell from the cavity, so you'll need to find one that is suitable for the. You will also require a new piece of string, a length of sash cord, and a few sash pulleys to connect the new sash weights the sash cord.

Mortise and Tenon joints can be used to join old wood windows. Hammers and pins can be used to cut off the wood pegs holding the parts together. The majority of them are large on one side and smaller on the other. It is essential to remove first the smaller diameter sides. Sashes that were made later in the century used glue instead of pegs and can be separated by cutting the glue line with a knife, [empty] then tapping the mortised area loose using mallets.

After the sash is removed, you can remove the sash stop and access the weight pocket. This is usually done through an opening at the bottom of each jamb. This hole is covered by an access panel of wood which can be removed to allow you to view the inside of the frame.

Once the sash is stopped and the access panel has been removed, you are able to remove the old weight and replace it. Be sure to weigh the sash prior to you do this, since the old weights could be a different size than what you require. Once the new weight is installed you can tie a string around it and thread it through the pulley for the sash. Then, you can nail the string to the boxed frame, but only leave a few inches of string hanging from the head to allow for future adjustments.

Sash Cords

Most double-hung windows of the past come with a chain or cord attached to the weights that supports and keeps the sashes balanced within the jamb. As time passes, these cords may break, making it difficult to raise the window. A new sash cord will give you the ability to move the sash up and down and keep it in place when opened.

The first step to replace cords for sash is to locate and remove the access panels within the jambs. These are usually fixed or screwed in and will need to be removed or repositioned. You may be able to employ a hammer and chisel for removing them but it's best to lay down dust sheets prior to starting any work.

After you have removed the access panel, you can begin to work on the sash. Prise the narrow parting beads (also called "tie rails") out of their grooves using flat bar or chisel. It's important to take your time, as these are often wedged or nailed in place. If the sash is in place, pry out the mortise and the tenon joints by using pin punch and hammer or screwdriver, then remove the wood pegs on each piece. The sash should be able to move freely now, but it may require some lubrication to feel less stiff.

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

Unless you've bought an item that replaces the counterbalance system that was in place before, it's recommended to keep the original balancing weights in place. They're not costly and easy to install if you purchase them from salvage shops for architectural use. Depending on the size of your window two or three sash weights could be needed to keep the sash in an open position.